Solterra Solar journeyman electrician installing a whole-home FranklinWH aPower 2 backup battery system integrated with solar on a residential property on Mercer Island, Washington.

Battery vs. Generator: The Complete Washington Homeowner Guide

Quick Summary

Batteries win on noise, emissions, maintenance, and integration with solar.
Generators win on upfront cost and prolonged outages.

Why Washington Homeowners Are Installing Backup Power

Each year, the Washington grid gets more unreliable. Climate-related extreme weather and skyrocketing energy demand is putting unprecedented strain on an overloaded and aging electrical grid. As Seattle’s population grows and energy-intensive technologies advance, the frequency of outages will increase. Just last month, thousands of PSE customers lost power for multiple days due to strong winds and snow.

Washington homeowners want control over their energy. They’re looking for affordable, reliable backup power to keep them safe, powered, and protected when the grid goes down. The first step? Deciding between a backup battery and gas generator.

Both options can power your home’s essentials for a few days, or even longer under the right circumstances. Curious which is right for your home? Let’s dive in!

Backup Battery vs. Gas Generator: How Each System Works

Both batteries and generators are designed to power your home’s essential appliances and outlets during a grid failure, but they do so in very different ways.

How does a backup battery work?

A home backup battery is installed as a wall-mount in your garage or on the side of your house and connects directly to your home’s electrical panel. It charges automatically throughout the day with electricity generated from your solar panels or the grid. When the grid goes down, it switches on instantaneously. To extend battery life during an outage, most homeowners switch off all non-essential breakers, keeping only the basics running: lights, the refrigerator, Wi-Fi, and a few outlets.

How does a gas generator work?

Rather than storing electricity, gas generators produce electricity on demand by burning fuel (typically gasoline, propane, or natural gas) to power an internal combustion engine that drives an electrical generator. The electricity produced can power your home either through a transfer switch (automatic or manual) that connects to your electrical panel, or via extension cords running directly to appliances. There are two main types of gas generators: portable and standby generators.

How do portable (manual start) generators work?

Portable generators are wheeled units you store in a garage or shed and manually start when the power goes out. They’re relatively affordable ($1,000–$3,000) and available at most home improvement stores, but require you to run extension cords or install a transfer switch and generator outlet to connect them to your home’s circuits. When an outage occurs, you’ll have to flip the transfer switch in the panel, wheel your generator outside (recommended 20 feet from your home), plug it in, and start it up.

They are powerful enough to energize your home’s essential circuits, but not provide whole-home backup. Because portable generators run on gasoline or propane, they require ongoing fuel management (both maintaining fresh fuel in storage and refueling during extended outages). When your generator runs low on fuel during an outage, you have to turn it off and let it cool before refueling.

They are louder (up to 90 decibels) than permanently installed standby generators due to their open-frame design, which leaves the engine exposed and lacks the sound-dampening enclosure found on standby units. They’re also vulnerable to theft, which isn’t really a concern for permanently installed systems.

How do standby (automatic start) generators work?

Standby generators are permanently installed outside your home and connected directly to your electrical panel via an Automatic Transfer Switch (ATS), which detects the outage and starts the generator automatically within 10–30 seconds. There will be a momentary loss of power during switchover. They run on natural gas or propane, and may require you to upgrade your fuel line upon installation. Typically sized between 12–26 kW, they’re capable of powering an entire home. Standby generators are significantly more expensive than portable generators, typically ranging from $8,000–$16,000+ fully installed. Runtime is theoretically unlimited as long as fuel is available.

The rest of this guide will focus on standby generators.

Backup Battery vs. Gas Generator: Cost

The upfront cost of a standby gas generator is typically cheaper than a backup battery, but installation is often more complex, raising costs. When it comes to maintenance costs, backup batteries are the clear winner. You’ll spend very little or nothing on upkeep and repairs, whereas a gas generator needs regular service to operate properly. Generators often look cheaper at purchase, but can cost just as much or more over the lifetime of the system.

Which system wins on cost?

✅Generator on installation costs (usually)

✅Backup battery on maintenance costs

Product & Installation Cost

Backup Battery Installation Cost

A professionally installed backup battery system in Seattle typically ranges from $12,000 to $25,000. Most Washington homeowners can expect to pay about $11,000 to $16,000 for the battery hardware and about $4,000 to $8,000 for installation. Another way to look at it is you can expect to pay $1,200 to $1,700 per kilowatt-hour (kWh) of storage capacity for the first battery and $700 to $1,000 per kWh for additional batteries. The cost per kWh decreases because the first battery includes fixed costs like installation, permitting, and the energy management controller, while additional batteries can share that same infrastructure.

A whole-home battery backup solution like the FranklinWH aPower 2 (10kW/15kWh) typically costs between $15,000 and $20,000 per unit fully installed, including the required aGate smart controller and labor.

Gas Generator Installation Cost

A typical standby generator is usually cheaper up front than a battery, but may have higher installation costs, including the concrete pad, automatic transfer switch, gas line connection, electrical work, and permits.

A professionally installed generator system in Seattle is typically $8,000–$16,000, with the average around $13,000. As of spring 2026, for a whole-home unit like the Generac Guardian 22kW, you can expect to pay about $6,000 to $7,000 for the generator and $3,000 to $8,000 or more for installation. A larger generator or complex installation can push costs above $20,000. It all depends on your home and energy goals.

Maintenance & Fueling Costs

Backup Battery Maintenance Costs

Batteries require little to no maintenance. Keeping the system in optimal working condition is often passive for the homeowner, with routine software and firmware updates pushed automatically by the manufacturer. A homeowner may want to complete an annual visual inspection to ensure there’s no damage to the battery and clean off any dust that may have collected, but they’re built to withstand the elements without it impacting battery health and performance. Homeowners can monitor their battery’s charge and capacity remotely through the manufacturer’s app.

Gas Generator Maintenance & Fueling Costs

A gas generator, on the other hand, requires regular maintenance and costs can really add up. For oil changes, filter replacements, and valve adjustments, Generac recommends service every 6 to 12 months by an authorized dealer. Spark plugs and the startup battery need to be inspected annually and replaced every few years. Generators also require transfer switch testing, coolant checks, and fuel system inspection, plus weekly 5–20 minute self-test cycles.

What do these costs look like over time? Seattle homeowners with a popular standby generator like a Generac 22kW Guardian may spend roughly $200–$600 per year on maintenance, plus additional fuel costs that vary with outage length, fuel type, and load. If the generator runs for about 25 hours total across five 5-hour outages, annual fuel costs could exceed $125 depending on whether the system uses natural gas or propane. Over 15 years, operating costs can add up to over $9,000, especially in Seattle where labor and fuel costs are higher.

When you consider the longview, batteries are often the smarter financial investment. A battery costs $0 to recharge when integrated with solar power. Gas prices will continue to climb over the next 15 years, making the lifetime cost of installing and operating a generator easily exceed $20,000 for many homeowners.

But Wait, How Much Does it Cost to Recharge a Battery?

While a backup battery does not require fuel, it does need to be recharged with energy from solar panels or the grid. When recharged with solar, it costs the homeowner $0, when recharged with grid power, it’s about $2 for homeowners living in Western Washington as of spring 2026. For example, to fully recharge a Franklin WH 15kWh aPower 2 would require about 16.7 kWh from the grid (you need to pull slightly more from the grid than you get back out). A Seattle City Light residential rate rate is approximately $0.139 per kWh. The math: 16.7 kWh x $0.139 per kWh = $2.32.

Backup Battery vs. Gas Generator: Installation & Setup

Backup batteries are typically simpler to install and set up, and have a much smaller square footage footprint than a gas generator.

Battery backup: Wall-mounted in the garage or in a shady spot on the side of the house near the electrical panel; electrical work required like installing a transfer switch, smart electrical panel, and commissioning.
Standby gas generator: Requires pouring a concrete slab, connecting the generator to a dedicated fuel source (such as installing a gas line), and electrical work like adding a transfer switch, plus device setup.

Which system wins on simplicity of install & setup? ✅Battery

Backup Battery vs. Gas Generator: Capacity & Scalability

A standard single-family home in Seattle consumes roughly 18–35 kWh per day, with essentials like lights, refrigerator, WiFi router, and some outlets accounting for 5–10 kWh of that usage.

Backup Battery Capacity & Scalability

A single 15 kWh battery can cover your home’s essentials for roughly 3 days without recharging, or indefinitely when paired with solar (under the right weather conditions).

Modular by design, backup battery systems can contain a single battery or stack multiple batteries, depending on your storage needs. Solterra Solar installs the Enphase IQ Battery 10C (customizable in 10 kWh increments from 10–80 kWh) and both the FranklinWH aPower S and aPower 2 batteries (customizable in 15 kWh increments). Homeowners or businesses with higher energy demands can add up to 15 batteries to their Franklin WH system.

Some homeowners want to be able to power their electric heating system or AC unit(s) during an outage. The FranklinWH aPower 2 features a continuous output of 10 kW, enough to start a 5-ton AC unit while running essential home loads without tripping or overloading. A homeowner might install multiple FranklinWH batteries if they want to power heat or cooling systems for several hours per day.

Standby Generator Capacity & Scalability

Standby generator units vary in size, with larger units designed to carry heavier loads for homes with more “essential” appliances, such as a central AC unit. When comparing a single battery to a single generator, a generator will typically be more capable of handling more high-power systems like heaters and AC units. For example, the Generac 22kW Guardian puts out significantly more continuous power (22kW) than the FranklinWH aPower 2 (10kW).

Fun fact: You can even pair batteries and generators together for even more coverage. The FranklinWH aPower 2 has a generator has a place to plug in a generator to recharge it.

Which system wins on capacity and scalability? ✅ Tie: A whole-home generator will usually output more continuous power than a single whole-home battery, which makes a difference in parts of the country where central AC is considered “essential.” However, the ability to stack multiple batteries in a single backup system closes this competitive gap.

Backup Battery vs. Gas Generator: Reliability & Runtime

Reliability can be measured in a few ways: response time, long-term operation, and maintenance requirements. Batteries excel in terms of their reliable, instantaneous startup and low maintenance requirements, but gas generators are better suited for long-term outages.

Response time

Battery backup: Instant; imagine not noticing you lost power

Gas generator: Take 10–30 seconds to start, which can be an issue for sensitive electronics

Long-term operation

Battery backup: Ideal for short- to medium-length power outages, but can be extended when recharged by solar. A typical whole-home backup battery can power a home’s essentials for 1–3 days without a recharge.

Gas generator: Can typically carry heavier loads (like multiple AC units) and are better for prolonged grid failures with adequate fuel supply and proper maintenance.

Exception: In case of extreme, prolonged grid failure or natural disaster, gas lines may be disrupted, making solar energy a more reliable and accessible source.

Maintenance requirements

Battery backup: Minimal to no maintenance; charge can be monitored remotely through the app
Gas generator: Regular maintenance and annual service by certified professional; gas levels must be monitored manually

Which system wins on reliability? ✅ Tie: Power outages in the Pacific Northwest are typically short duration (1–3 days), which a battery can handle effectively. However, the rare multi-day outage during Washington’s dark winter months would most likely lead to a drained battery that can’t be sufficiently recharged by solar due to short, cloudy winter storm days.

Backup Battery vs. Gas Generator: Lifespan & Warranty

How long does each system last? On the whole, standby gas generators have a longer lifespan, but shorter warranty period, compared to backup batteries.

Battery backup: Usually have a 10–15 year warranty and are often designed to last about that long
Gas generator: Typically have a 5-year warranty, but can last 20–30 years with good maintenance

Batteries lose some storage capacity over time. Popular models like the FranklinWH aPower S and Enphase IQ Battery 10C come with industry-leading 15-year warranties (or 6,000 cycles/60 MWh throughput, whichever comes first). They guarantee the battery should still have at least 70% of its original storage capacity at the end of the warranty period.

Generators have replaceable maintenance parts like batteries, filters, hoses, and some electrical components, but the engine, alternator, bearings, rotor, or controller can eventually wear out. Around 20 years, repairs can become so expensive or parts can be so hard to get that replacing the whole unit often makes more sense.

When considering system longevity, gas generators seem to come out on top. However, it’s important to factor in the fuel and maintenance costs for years 15–30, especially with gas price hikes. In the end, replacing a backup battery at year 15 may lead to lower costs and better warranty coverage over a 30-year window.

Which system wins on lifespan & warranty? ✅ Tie: generator wins on lifespan, and battery wins on warranty

Backup Battery vs. Gas Generator: Maintenance

Batteries require significantly less maintenance than gas generators. Most importantly, battery “maintenance” is largely passive on the homeowner’s part, whereas a gas generator requires regular service by a certified professional.

Battery backup: Automatic software and firmware updates, annual visual inspection, and monitoring the battery’s capacity through the app (if desired).
Gas generator: Every 6-months to a year, generators require oil and filter changes, valve adjustments, coolant checks, fuel system inspection, and more. Every few years, generator spark plugs and startup batteries need to be replaced.

When it comes to maintenance, a gas generator cannot compete with a home backup battery system.

Which system wins on maintenance? ✅Battery (by far)

Backup Battery vs. Gas Generator: Safety

Both systems are safe when properly installed and used, but gas generators do come with more likely and immediate risks.

Backup battery safety

Most home batteries are made of lithium iron phosphate (LFP). LFP battery technology provides enhanced safety due to stable chemistry and exceptional thermal stability. It is extremely rare for a home battery to overheat and catch fire, even under extreme conditions, when installed by a trusted, certified battery installer.

Gas generator safety

Gas generators pose immediate safety risks if installed or used improperly. They must be placed outdoors far away from windows, doors, and HVAC intakes to avoid carbon monoxide poisoning, which has caused many fatalities. Generators also carry fire risks from fuel leaks, hot exhaust, and electrical faults, plus shock hazards if wiring is improper.

Which system wins on safety? ✅Battery

Backup Battery vs. Gas Generator: Noise Pollution

Battery backup: Near-silent operation
Gas generator: Typically between 50–85 dBA

It’s no secret gas generators are noisy. Similar to a riding lawnmower, a standby gas generator can run as loud as 85 dBA (loud enough to cause hearing loss with prolonged exposure).

Manufacturers usually measure generator noise from 23 feet away, so the quoted numbers are lower than what you’d hear standing beside it. Portable units typically have ratings of 70–90+ dBA because their engines are exposed, whereas standby generators (60–70 dBA) use insulated, permanent enclosures to dampen sound.

For example, the Generac Guardian series noise ratings average around 67 dBA, or equivalent to a washing machine, slightly loud conversation, or background music at a restaurant.

For homeowners concerned about disturbing their neighbors, noise is a major selling point for the backup battery. Backup batteries are near-silent, except for the occasional low-level electronic hum or cooling fan noise. For example, the FranklinWH aPower 2 never exceeds 30 dB (quiet as a whisper).

Which system wins on noise pollution? ✅Battery (by far)

Backup Battery vs. Gas Generator: Air Pollution & Climate Impact

Backup batteries do not emit exhaust or air pollutants while in use, but gas generators do. This is why gas generators are required to be placed outdoors, away from windows, HVAC intake, and doors, to protect people from the toxic exhaust.

Battery backup: zero local exhaust emissions during operation
Gas generator: direct combustion emissions while running, including carbon monoxide, nitrogen oxides, carbon dioxide, and other pollutants

Many homeowners opt for a backup battery because it’s much cleaner for neighborhood air quality, especially during outages when generators may run for many hours.

Beyond local environmental impact, a battery’s overall climate footprint depends on how it’s charged. In Western Washington, most of our grid electricity comes from hydropower. While it offers cleaner electricity compared to burning fossil fuels, hydropower can have severe local environmental impacts on river ecosystems and salmon habitat.

When we take the longview, a battery is the greener choice even in areas where the grid is powered by fossil fuels. Why? Grid power has the capacity—and is already—becoming cleaner over time, but gas generators will always burn fuel and contribute greenhouse emissions while in use. Seattle homeowners committed to lowering their environmental impact should seriously consider pairing a home solar system with a backup battery.

Which system wins on air pollution? ✅ Battery (by far)

Backup Battery vs. Gas Generator: Works with solar?

If you’re interested in installing solar on your home, a backup battery is the smarter choice. Backup batteries integrate seamlessly with solar, storing the excess energy your panels produce during the day so it’s ready exactly when you need it: at night, during peak demand, or in case of grid failure. Homeowners pair solar with a backup battery for unrivaled energy freedom.

A gas generator can recharge a home backup battery like the FranklinWH aPower 2, but it does not integrate or “work with” solar. At best, it can offer redundancy as a backup to your backup.

Why pair a backup battery with solar?

Protect your home & family during an outage: Power outages are on the rise due to more frequent extreme weather, rapidly aging electrical infrastructure, and unprecedented demands on the grid.
Unlock solar power potential: Instead of sending it back to the grid, store the excess energy your panels produce to use at night, during peak demand, or when the grid is down.
Unrivaled energy freedom: Keep your panels producing and your home powered by safely “islanding” when utilities fail with integrated battery storage.

Which system wins on solar compatibility? ✅Battery

Backup Battery vs. Gas Generator: Washington Incentives

Batteries clearly outshine gas generators when it comes to incentives. Washington state does not offer incentives for gas generators, but does offer clean energy incentives and utility rebates that can cut thousands off the cost of a battery install.

State Sales Tax Exemption: When paired with solar, you won’t pay state or local sales tax on your system, cutting thousands off your total cost (expires in 2029).
PSE Flex Battery Program: Get financial rewards for helping stabilize Washington’s energy grid with your home backup battery system. Enroll and earn up to $1,000 per battery, plus up to $500 per battery each year with no action required.
PSE Enhanced Incentives: Receive up to $10,000 towards the upfront cost of your battery if you qualify. Earn up to $1,000 per battery plus $.50 per kWh for your participation during Flex events.

Washington programs focus on electrification and grid-supportive storage, not fossil fuel backup.

Which system wins on incentives? ✅ Battery

Which system is right for your Washington home?

Energy resilience in Washington doesn’t have to be complicated. Since 2010, Solterra Solar has installed thousands of home backup battery systems across Western Washington. We can help you explore if a backup battery or gas generator makes more sense for your home and energy goals. Get started by requesting a free battery quote today — one of our battery experts will reach out within one business day to help you find the right solution.

Author Bio:

Sarah Taylor (she/her) is a writer and marketer dedicated to creating positive change through the power of story. With nearly a decade of experience helping mission-driven organizations connect with their audiences, she blends utility, empathy, and artistry to craft content that drives meaningful growth. Specializing in climate tech and environmental advocacy, Sarah turns passive viewers into loyal brand advocates by fostering deeper, more authentic online experiences. She holds an English and creative writing degree from Gonzaga University. When she isn’t poring over words with hot tea in hand, you can find her exploring the PNW’s unrivaled wild spaces or gently persuading her indoor cat, Lemon, to embrace life as an adventure cat.

April 13, 2026

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Robert Marver

1 month ago

Super happy to have chosen Solterra to design and install our panel array! The whole process was seamless from start to finish. Kendall visited us personally to go over our choices, explain how the array would help us power our future home improvements, and discuss the nerdier aspects of generating our own power. The installation team was quick, efficient, and fun, and we really could not be happier with the performance and seeing our new electric bill. Give Solterra a call if you're looking to harness the power of the sun, they'll be honest and transparent with your options and they care about how their system performs not only when you install but down the line as well.

ron petetsen

Crew was great to work with. Any trash items dropped on the ground were immediately picked up. They arrived on time each morning. Everything looks level and even on both ends. Had 39 panels installed.

Brian Anderson

Showed up on time they worked hard. The panels look great on my house excited to have.

Brian Timpe

Two preliminary visits, pretty quick install date, two days to install everything, inspection the next work day, net metering visit and start 3 days later. Really couldn't have been happier. Production great so far, first bill was $0 with only half a period covered by solar. Now for the darker months.

Kalena Mina

2 months ago

We had an outstanding experience with SolTerra, thanks largely to our installer, Marvin. He was incredibly knowledgeable, gave us clear instructions throughout the process, and worked quickly and efficiently while staying completely focused on the job. He showed up on time and was polite and easy to work with from start to finish. Marvin went above and beyond to help us with our solar panel installation, and it really showed. He's top-tier for this company and deserves real recognition for it a raise, a bonus, or a move into management would be well earned. We feel very lucky to have had him on our home. The rest of the crew was excellent too. They worked hard through the August heat (we made sure to keep them stocked with water installing solar panels in that kind of weather is no joke), and the whole team's effort didn't go unnoticed. Thank you for sending such a great crew our way. Our family will be recommending SolTerra to everyone we know.

Herman Gilman

2 years ago

Excellent experience all the way from sales to walk-through of installation to the actual installation process and follow-up. The entire company gets an A+.

Cameron Copeland

The Solterra team was professional, organized, and communicated clearly through out. I’m very pleased with our solar install + SPAN panels and look forward to Ph. 2 including battery backup and the new SPAN 48 install.

Lisa Phelps Ottenbacher

We recently completed a second installation on a second house with SolTerra. SolTerra has been the best company to work with. They walk you through every step of the process and explain things in easy to understand terms, responding quickly to questions and concerns. Installation is quick, efficient and aesthetically pleasing. SolTerra has my highest recommendation. I would give this company double five stars if I could.

Greg Fritzberg

Solterra has seemed an excellent solar decision for us from the start. Kendall in sales is supremely knowledgeable and operates with cost-consciousness and integrity. The installation and support teams were also professional and timely. We’re very satisfied!

Christine Barmes

I recently had the pleasure of working with Solterra Solar for my home solar installation, and I am beyond impressed with their service. Initially, the installation was scheduled for March, but thanks to their proactive approach, everything was completed in February. This allowed me to start harnessing solar energy benefits earlier than expected. My sales representative was outstanding, providing clear and transparent information about the entire process, including the expected return on investment. The communication was top-notch, and I felt informed every step of the way. I also appreciated that the final cost matched the initial estimate, with no surprise fees or hidden costs. The install team demonstrated exceptional professionalism, respecting my property and completing the job within the agreed timeline. They ensured everything was tidy after the installation. Additionally, Solterra made the paperwork for the tax credit hassle-free, promptly sending all necessary documentation. Overall, Solterra Solar delivered an exemplary service characterized by efficiency, transparency, and respect for both time and property. It was a seamless experience from start to finish, and I am thrilled to be utilizing solar power ahead of schedule. I highly recommend Solterra Solar to anyone considering a switch to solar energy!

Renee Gallagher

We've used Solterra for two solar installs and both experiences have been exceptional. They are reliable, responsive and provide clear guidance and expertise during the project. We had some unusual circumstances with the first install after the panel manufacturer went out of business and the panels began to delaminate. Solterra was supportive and went above and beyond in doing what was possible to maintain the system. When it was time to replace, we chose them again and have again been satisfied with their work. Great company!

James Wong

Recently bought a new home and planned to change the roof and perhaps add solar. Attended the Northwest Remodeling Expo in Seattle last year and met Kendall Haynes. Despite just moving in and starting to think about solar, Kendall was very patient and answered all of our questions. We asked that he reach out to us in about 6 months to see where we were at. He did and again, patiently answered all of our new questions. Things came up and more time passed. During a walk around our neighborhood one day we saw a house with a SolTerra yard sign and decided to ask how the owners felt about their decision. Their answers led us to pull the trigger and go with SolTerra. Kendall again answered all of our questions and got the ball rolling. We had two plans, one to add solar to just our house and the other to both our house and detached garage. When we found it would be challenging to add solar to our house, Kendall and his team recommended adding solar to just our house, even though adding solar to our garage would have probably been more profitable for SolTerra. The honesty was appreciated. Our installation had to be postponed a bit because of an unforeseen event on our part and the team was very flexible. The installers were professional and the electrician, Michael Marconi was great. He pointed out potential electrical safety issues with our panel which was appreciated. After nearly a year, we have our system installed and are happy. Overall, a great group of people to work with and would recommend SolTerra for those considering solar.

Anthony Douglas

I was referred to SolTerra after my parents experience of working with them for their home solar system. My experience was nothing short of excellent for the two projects I’ve had completed. From the various stages of consult, design, construction, and final walk-through, the experience was stellar. The staff are transparent, incredibly knowledgeable, timely in their communication, and truly care about the product their customers receive. I can’t recommend the fabulous crew at SolTerra enough.

Caleb Murphy

Amazing Professional Friendly support! Best in the business!!!

Connor Decker

Edit: Solterra seems to be a victim of spoofing and is not in habit of harrassing random people. I will leave my review here to help others... Received an unsolicited call from this company over 2000 miles away from me. Ive since blocked them after they kept calling me and they continue to call me. I've since received 11 calls. At the same time they started calling me ive been receiving Spoofed calls from the Federal Department of Energy(apparently a current scam as told by Chat GPT) those calls self terminate after a few seconds. Huge red Flag for this company IMO.

Dave Linde

We highly recommend Solterra! We recently built a garage with a roof designed specifically for solar. After interviewing six companies, we chose Solterra because they are a small, locally-owned business; because their price was competitive; because they had the best warranty; and because everyone we met really really knows what they're doing. Kendall and Paige are great; more than once Solterra's schedule had to change to accommodate the other contractors on our project and they were a breeze to work with. Every person who showed up to install every aspect (electrical, actual installation, fire compliance, etc.) was highly professional and clearly enjoying their career. And surprise! After our signed contract (yet well before installation), the panels we had chosen had a price drop, and Solterra passed the savings on to us. Unheard of; thanks Solterra! Our installation has been online for a week now, and even on a cloudy November day in the Pacific Northwest we love seeing those panels make energy from the light they get. So happy we did this; so glad we chose Solterra!

Mike Quinlan

After a terrible experience with a national solar company based in Florida, we were connected with Aimee and the Solterra team thanks to a referral from our neighbors. And we have to say, the experience with Solterra was like night and day compared to the other company. Aimee herself was amazing to work with. She and the team were thorough, clear, respectful, and responsive. Solar is a little confusing at first, but she really took the time to make sure we understood all the seasonal and energy generation and billing nuances. And most importantly, they were meticulous with our design. With 25 panels going up on a roof with multiple skylights, we were really concerned about how it would look – and so was the Solterra team. Careful planning, conscientious layout, with focused attention on the aesthetics resulted in a layout that we don't even notice, now. It looks like it's always been there and we couldn't be happier. The onsite team was amazing, efficient, respectful, punctual, and got the job done with minimal impacts on our day to day. All in all, we just can't recommend Solterra highly enough. Thanks Aimee and team!

Dana Hoffman

Working with Solterra was one of the best experiences we've had so far as homeowners. They were extremely responsive, friendly, and professional. We received an email every day that work occurred to summarize what was done and they kept us very well informed about each step of the process. Our roof was challenging for some solar professionals we got quotes from because we have dormers, but Solterra enthusiastically said they could make it work and followed through. We would recommend them to anyone interested in solar panels!

David Graves

SolTerra provided great customer service with coming to our home to discuss the project, gave us options to chose from, explained the ins and outs of solar power, and did a great job installing. They responded quickly to all our questions. No complaints whatsoever! Much better than any of my other home upgrades!

Dave B

Solterra did a great job overall with our backup battery system installation, it is a wonderful system that has been working flawlessly and provides peace of mind knowing that if power from the grid is lost we will still have power. I appreciate everything done by Marvin, Aaron, Tim, Kendall, Paige, Neil and Rochele. They thoroughly explained the operation and answered all our questions. We already have a solar panel system from Solterra which was installed in 2018 that has worked great so adding the battery system was icing on the cake.

Karen Sorenson

The SolTerra panels have been providing power to me and to the grid for about two weeks now! I like how clean the system looks on the roof and the side of the house. Kevin from SolTerra was very professional and explained everything to my satisfaction, and he was also able to answer all my questions. I would recommend them to anyone interested in providing solar power to their residence.

L. A. Kane

SolTerra did a fantastic job, with excellent communication throughout the process. Their price was reasonable and quality of work excellent. I've already recommended them to friends and relatives.

Angela

We had a fantastic experience with the Solterra Team! From the bid process through the final walk through, everyone was very knowledgeable, professional, and they provided exceptional customer service!

jan gifford

I was amazed by SolTerra at every step. I was contacted immediately and handed a plan for solar panels, including placement, choices, cost and benefits. Since no one else gave me a hard copy, I compared every other proposal to SolTerra, and no one came close. Communication was excellent and I knew what was happening from start to finish. Installation was fit to my schedule and 24 panels were on my roof in 3 days. I cannot say enough good things about this company. They have my highest recommendation.

Stuart Mork

Everything went smoothly from start to finish. The office took care of the permitting process with the city and arranging for the inspections at the end, and the electricians and installers did excellent work. All questions about the process and work were carefully and fully answered. The job site was always clean and organized.

Kelly Larson

We had our solar PV system and batteries installed during March 2024. SolTerra was the best value and did a fantastic and impeccable job. Marvin and his team did a great job with our project. He genuinely cared about doing a clean and precise job and treated our house like it was his own. Communication with SolTerra was clear and the process was smooth. They handled all of the planning with permitting and inspections, including with our utility company. Overall we had a great experience and have high confidence in our system!

Isaac Brown

3 years ago

I am absolutely thrilled with my comprehensive solar installation, featuring solar panels, Enphase backup batteries, the upgrade to a smart home SPAN electrical panel, and the thoughtful inclusion of additional circuits for critical loads. This complete package has transformed the way I think about energy and has provided me with unprecedented control over my home's power supply. What truly sets this installation apart is not just the cutting-edge technology but the dedication of the team behind it. When other companies turned me away, citing various reasons why my roof wasn't suitable for solar panels, this team went the extra mile to make it happen. They spent extra effort to get the most panels on my roof, maximizing energy production and ensuring that I could benefit from solar power to its fullest extent. The solar panels themselves are a marvel, expertly positioned to maximize sun exposure and seamlessly blending into the aesthetic of my home. The Enphase backup batteries provide peace of mind, kicking in seamlessly during outages, while the SPAN electrical panel upgrade and additional circuits for critical loads offer unparalleled control and reliability. The installation process was smooth and efficient, thanks to the expertise and dedication of the team. They took the time to explain everything in detail and ensured that I was comfortable with the system before they left. Their commitment to customer satisfaction was evident every step of the way. Overall, I couldn't be happier with my decision to go solar with this exceptional team. Not only am I saving money on my energy bills and reducing my carbon footprint, but I also have the peace of mind knowing that I'll never be left in the dark again. If you're considering making the switch to solar, I can't recommend this company highly enough. They truly go above and beyond to deliver outstanding results.

Jan and Kathi Skillingstead

From first contact through final walk through, EVERYONE at SolTerra was wonderful . . . knowledgeable, professional and personable. We are excited about our purchase and look forward to adding to our system in the near future. Highly recommend this great company!

Aaron Hall

They installed our system ahead of schedule, in 1 less day than expected. There were no permitting or inspection issues, the inspector even had some positive comments about the installation of a cutoff breaker next to the car charger not just inside at the main panel. PSE was even quick to approve us to power on. The whole process from start to finish was only a few weeks. Better than the horror stories I had heard from neighbors. It's been 1 full year since power on and we are pleased. We have had no issues. We are above our production expectations and above our offset target. I rate them 5 stars for communication, ease of installation, price to performance, they quoted me systems within my stated budget, they were on time and a little ahead, and they hit production and offset targets.

Matthew Del Buono

Excellent business and one I strongly recommend to anyone looking to add solar to their homes. Kendall made the process seamless from start to finish with excellent communication, and they made sure I understood exactly what I was getting and how everything worked. Most importantly, this team makes sure you're getting what you want and need, and does not attempt to oversell or overpromise, which seems like a common problem in this industry. They take every precaution to understand what makes sense for your roof, for your house's location, and any obstructions that might adversely affect your performance. When there was a small supply chain hiccup (not their fault - it was a manufacturer issue), they offered to keep the schedule on time by instead using a superior product for the same price. This is the kind of customer relationship you should look for when you're investing in a 30+ year product. Based on what we've seen so far, we're getting more performance from the system than promised, and everything is super easy to use and looks beautiful. We're really looking forward to this summer to see what solar harvest we can bring in for the year. (34x 410W panels)

Elmar Weber

We love our new solar power system! The process with Solterra was incredibly smooth from start to finish. Kendall took care of all of our questions during the sales process. Jordan and Marvin went above and beyond during the design and installation phase and did exceptionally clean work. Our neighbors have been complimenting us on the clean, modern look.

Tim Aye

I had Solterra Solar install solar panels on my roof a few months ago, and I am very happy with the results. They were professional, easy to work with, attentive to my needs before, during and after the installation. Here are just some of the reasons why I recommend them: · They offered a free consultation and a detailed quote that explained the costs and benefits of going solar. · They handled all the permits, inspections, and paperwork with the utility company and the city. · They arrived on time, worked efficiently, and cleaned up after themselves. · They installed high-quality panels that are durable, efficient, and aesthetically pleasing. · They provided a comprehensive warranty and a monitoring system that lets me track my energy production and consumption. · They followed up with me after the installation to make sure everything was working well and to answer any questions I had. Solterra is a trustworthy and reliable company that delivers on its promises. I am glad I chose them for my solar project and I would recommend them to anyone who is looking for a solar installer in the Seattle area.

Allan Geller

The completed work exceeds our expectations. The planning and related communications were excellent with every deadline met on time. This is a rare company which delivers on everything it promised. A quality operation with an excellent product.

Danette Rogers

I decided to go with SolTerra after getting estimates from 5 other companies. What a great decision! From the begin til the end, everyone I dealt with was very professional. They were on time, cleaned up after themselves daily and finished the day they said they would, even working until 9pm in the rain. The app is extremely easy to use and understand. I love challenging my family to shut enough stuff off (on semi-cloudy days) so we can watch (on the app) our energy use matches what we're making. If you're thinking of going solar, have SolTerra give you an estimate. You'll see what I mean by professional.

Helge Pedersen

From meeting Solterra/Colin at the Home Show in Seattle until the day we started to produce our own solar energy we have been treated with respect and felt cared for all the way. It is a long process, but never overwhelming and today we are very happy that we chose to go solar with Solterra. I did my own research online and by interviewing neighbors with solar, I learned a lot from this. With that knowledge I was able to weed out the bad from the good and this is how we ended up using Solterra, no regrets. Good luck with your own solar project, you will not regret it.

Geni H

The experience was very good, start to finish. The company was excellent at communicating schedules, expectations, and next steps. They have very professional project management, who did a great job making sure nothing (permits, inspections, electrification) fell through the cracks, and who kept us informed of the progress right through to project completion. We had a full electrical service upgrade done in conjunction, and the electricians were top-notch. The installers were prompt, pleasant, professional, and tidy. And our system starting exporting electricity as soon as PSE energized it, even on a short, cloudy, foggy day! I can't wait for summer, to see the production then!

belung yeh

Professional installation, friendly consultation, great customer service, Customer always first is Solterra's principal and goals. 100% satisfy with solterra.

Isaac Vasquez

Solterra is the best!! From the sit down with Kendall, all the way to the final walkthrough. Communication with all the staff was top notch. I couldn’t be more happier with process Solterra used to install my panels.

Dan Liu

Install process was smooth, timely and no surprises or setbacks live heard with other companies. Price was well below other national brand quotes. Panels have better performance specs. Thank you!!

Tighe Urelius

The entire experience with SolTerra has been nothing short of amazing. I have high expectations and they met or exceeded them at every turn. It's a refreshing experience to feel so good about a company's performance to give my highest endorsement!

Katie Robinson

Everything about our SolTerra experience was exceptional, from working with Kevin to pick out the system that worked best for our home to the amazing installers who were in and out in a flash leaving no trace behind. We have recommended the SolTerra team to everyone who has asked about our system.

Kalpana Patankar

Solterra team has exceeded my expectations in their way of handling my entire project of solar conversion from initial consultation to detailed orientation and implementation. I needed to upgrade my existing electric panel and they even added a last minute request to add a line to charge an EV. They completed ahead of schedule with very respectful workers who did an excellent job. I was fully equipped me to understand how the system works. I unhesitatingly recommend them to folks out there who are looking for a very professional Job.

Max Sutlin

Did a great job from start to finish. Communicated very well. Handled an SCL variance requirement as quickly as possible to help avoid major delay. Overall very pleased and would highly recommend.

John Maltsberger

Beat the competitions price by almost half. Easy to work with. I am not usually happy with projects like this and these guys really did a good job. I’m happy! I highly recommend them.

James Clarke

We recently had the pleasure of working with Solterra for the installation of 32 solar panels, two batteries and upgrading our electric panel at our home in Redmond, WA. Their service was exceptional thanks to the outstanding efforts of two individuals in particular: Service Manager and Project Coordinator Paige, and Electrician Tim. Solterra’s initial explanation and subsequent installation of the panels was painless and their team was great. We got quotes from other companies but went with them as their approach is professional, clear and they were up front about when they might be able to start work (good solar installers are backed-up). They quoted a start date in April but were able to start in February. We had major problems with PSE who delayed our project considerably despite Paige personally chasing them (sometimes daily) to get our project back on schedule, which was truly appreciated. Tim's expertise and dedication to our project was also clear. Our solar system went live in July and we’re now having fun tracking our production online with the Enphase app. In conclusion, our experience with Solterra has been outstanding and we highly recommend them to anyone considering the installation of solar panels.

Bill Jukes

We had a PV system with battery backup installed. Solterra was great and designed a system to our needs as we learned more about the options. We ran into an issue with a system controller component after the installation of everything. This resulted in a longer than anticipated delay to get our system commissioned by PSE. Everything was addressed and we are super happy with our system.

Peter Schumacher

We had a great experience with Solterra. They were extremely helpful in working with us to determine the best v system for our house. Their installation crew was awesome -- efficient and friendly. We're very happy with our solar panels and watching our meter send back electricity to Seattle City Light!

Melvin L. Gruschow

4 years ago

SolTerra met or exceeded all of our expectations and lived up to their promises. They were willing to compromise on a due date in order to allow us to avoid an early withdrawal penalty on a banking issue. There was only 1 issue that we had with an installation feature and SolTerra resolved that to our satisfaction very quickly. They were also readily available to answer questions that we had regarding operation once the system was complete. The system has been in operation for somewhat over a year and our electrical bill has never been more that $14.00 which includes a minimum $12 or $13 simply for being hooked up to the grid. We're very happy with the system and with SolTerra.

Bernard Troyer

Solterra has installed over four different solar systems for our amazing community non-profit program The BLOCK Project. They are great people and working with them has been very smooth, communicated and easy! We look forward to working more with them.

Luigge Romanillo

We originally received a quote from another provider and something told us we should shop around. Boy am I glad we did. SolTerra not only came in Way Lower in cost, but we also got a bigger system. The professionalism displayed by Aimee and her team was top notch, and they kept us informed throughout the entire process. If you’re in the market for solar, I highly recommend giving SolTerra a shot at your business.

Mark vonEhrenkrook

SolTerra was a delight to work with! They were so professional and helpful each step of the process. Every installer and electrician was very kind and willing to answer all of our questions. The office regularly communicated with is so that we were in the loop with the progress, permits and inspections. I cannot express how pleased we are with the process and final product. My wife and I HIGHLY recommend them for your solar installation!

Colby Blanton

I cannot speak more highly of SolTerra. After a door-to-door solar company came by with a high-pressured sales pitch, I decided to look into other options. I spoke with other neighbors who invested in solar, and I kept hearing amazing things about SolTerra. I got in touch with SolTerra, and the entire process was completely different compared to that fly-by-night door-to-door company. SolTerra was low stress, very clear, detailed, professional and easy to work with. They use high quality parts, with great warranties. They walk you through every step and make sure you feel comfortable with the entire process. They even got my solar installed nearly 2-months early!

Megan Alto

We used SolTerra for our solar installed. Kevin and his team were amazing to work with! Very responsive, patient, and explained everything wonderfully. We absolutely love our system!

Mark Ainsworth

SolTerra did a fantastic job with our solar installation. The entire process was a great experience - professional, clear and timely communications, great customer service. They provided lots of information and options regarding what they could offer us, and I'm very pleased we went with them. In addition they were super helpful with financing with a partnership with PSCCU. The panels were install ahead of schedule and have been working flawlessly. We are extremely happy with the results!

Russ B

5 years ago

SolTerra recently installed my home solar panels. The service from their sales, admin, and installation personnel was excellent. The whole process from initial sales negotiations, contract signing, installation through initial operation went exactly as promised. There were no surprises. All questions and/or concerns were addressed satisfactorily in a timely manner. The high quality of installation work was quickly validated by county inspectors and subsequent connection to the power grid by the power company. All 27 panels are now working as advertised and producing electrical output even on rainy, cloudy days. On clear, sunny days they easily produce more electricity than we can use during daylight hours, so we're able to export energy to the grid for which we get financial credit. If you are considering the installation of solar panels to supplement your electrical power usage I highly recommend contacting SolTerra.

Ryan Darcey

I had a great experience working with SolTerra to come up with a bid for both my solar project, but for reasons specific to my home's needs I ended up choosing another company. It was a tight race! I strongly recommend considering a bid from them. Great service, high quality hardware and competitive pricing.

Rebecca Dietz

I have nothing but good things to say about this company. Solar is a “no brainer” and the folks at Solterra made the process easy. I’m so glad to be “feeding the grid” from my Wedgwood home and am thankful to Solterra for making it possible in WA state.

Bryce

Solterra has been fabulous to work with, especially their CEO Aimee. Customer service is fast, and knowledgable. Thank you Solterra Team

jan raak nov2020

How it started. The SolTerra consultant did not come for the appointment nor did give a call! How it improved: SolTerra responded to this review. The second appointment was successful. Kevin introduced the options clearly. Will I choose them? I don't know yet. Considerations: * Pricing. SolTerra is about 10% more expensive. * Use of a lien: I don't want to assume SolTerra's business risks. Once a contract is signed both parties have obligations.

Christy Davis

I enjoyed Aimee’s presentation. She educated me about solar without overloading me with irrelevant info. Instead of sharing 17 different options she made an educated recommendation and confident quote based on her many years of experience I could tell she was setting realistic expectations. She was conservative with ROI and installation timeline estimates instead of over promising. The installers were very polite and professional. Operations communicated clearly and set expectations. I can’t imagine a more positive experience and now I have Good Energy in my home!

Mike Monteleone

6 years ago

Can't give these guys 6 stars but would if I could. Job came in at contract price and ahead of schedule. Technicians were professional and courteous. Sales rep and main contact, Kevin, went above and beyond. If you've considered solar but... Seattle, call them for the facts.

Dylan Carlson

Although I did not select Solterra as my solar contractor, I felt that they deserved an excellent review due to the time and quality customer service they provided me. They helped put my many bids into context and educated me about the products being offered. Ultimately, my distance from Seattle made their bid uncompetitive due to drive time. But they were up front about this and even provided a hypothetical cost estimate if my project was local so that I could evaluate my other bids. Excellent customer service from this company.

Verla Viera

We flipped the switch this week on our new solar power system! SolTerra was excellent to work with, and we're very happy with our system. There were some glitches and time delays as we went along--no fault of theirs or ours, including my father dying--and they were helpful and communicative all the way. Solar power was completely new to us. From the time we asked for a quote until the project was done, we had a million questions, all answered patiently and in language we could understand. I think the responsiveness is especially admirable given that they work on whole buildings and construction projects, when we're just a little rambler in the suburbs. We don't expect to live in the area for many more years. We are not concerned with that because whatever we don't earn through energy savings, we will probably get back as equity when we sell. Feels great to run on green power!

Robert Williams

7 years ago

I sent an inquiry about getting solar installed on our home in North Bothell. Unfortunately, we have two large trees that I'm pretty attached to that didn't make our home a good fit for solar. That didn't stop Emily from providing excellent service and information on our options. Any company that is honest enough to tell you their product isn't a wise investment is good in my book.

S D

Solterra didn't go through the proper permitting process and left me with an additional $60,000 in consultant and mitigation plan fees, refusing to take responsibility for their own contract terms. Highly stressful, beyond disappointing, and grounds for a lawsuit. Go through someone else for your solar power, these guys don't care about you once they have your money.

Jeff Landers

Excellent service and product! I strongly recommend if you are interested in saving money and to fight climate change. If you’re switching from gas furnace to electric with heat pumps, panels help a lot. With the free SolarEdge app, it’s easy and fun to see how much electricity, money, and CO2 you are saving. They even installed our car chargers.

Rob Cole

Great communication, administrative staff, and installers! Would highly recommend doing business with SolTerra (in fact, I've already recommended to a few friends).

Bernard Crouse

We've been up and running for less then a month and we've already "planted" 20 trees and kept over 700 pounds of CO2 out of the atmosphere! All of SolTerra's employees were polite, informative and very professional. We are super happy with our system and wish all of our neighbors would get on board.

Nick Richardson

I had the pleasure to work at SolTerra for three and a half years and could not recommend the company more highly. SolTerra is very well managed from the top down, and is an awesome place to come into work everyday. Their ethics in business and true concern for what they do make them fantastic to work with.

Alice Stiehl

SolTerra made the process of getting solar so easy - it really is a turn-key operation. We worked with Colin to design the system and their staff did the install in about 3 days. It took PSE a while to install the production meter, which was frustrating, but out of everyone's control. The monitoring system is easy to use and view our production levels.

Nick Greenaway

I had an excellent experience with Solterra. Jessa, Neil,& Kathy were very patient with my endless questions, very thorough when i needed info& proactive with the paperwork. The installation crew was quick& professional I cant say enough good things about Tim & Mason for taking care of an emergent (& potentially catastrophic) issue uncovered in my house wiring unrelated to the solar project. They had everything taken care of very quickly I have repeatedly recommended Solterra & continue to do so

Ken Winkelman

Working with SolTerra was a wonderful experience. I enjoyed working with Kevin C. who designed the system. He explained other options with higher output panels and future expansion. My questions and concerns were answered quickly and office personnel were a joy to speak with. The installation is very neat and clean and everything looks great. I love watching the green mountain (graph)on the SolarEdge app grow each day and see the power that’s being made. Thank you SolTerra! Job well done!

eric gil

8 years ago

This solar installation took very little of my time. Solterra takes care of everything and was really easy to work with.

Scott Mack

My first encounter with Solterra was by a recommendation of my friend John. He was very happy with the outcome of his Solterra installed solar panel system. I called him because I was working with a solar company called Solnrgy from Nevada who I had gotten in contact with by a postcard in the mail. I had realized at every turn they were disingenuous. Solterra was straight up from the first meeting with Jennifer Monaco representative, and all the way through the entire process. Solterra Rocks!!!

Mike Hollinshead

Nick and team did a great job delivering on our solar project. He broke down the state and federal incentives in a way a normal person can get their heads wrapped around. Our system was installed in three days, and is already producing above projections. One thing I really appreciate - was that Neil and team stepped up and cleaned our panels after install. I wasn't pleased with the initial look of the panels which appeared to have a film on them. Their team reacted to my feedback, reviewed pictures, and had them cleaned at no cost to me - even though that isn't typical for them. It proved to me that they react to customer feedback and take action. Hence my five star rating and recommendation.

Matt Smith

9 years ago

We have nothing but great things to say about SolTerra. Kevin was our sales contact and he was awesome. Very understanding and patient with our questions, he walked us through the whole process. SolTerra makes the build easy. They take care of all the paperwork and permits. They are fantastic with communicating and we never felt out of the loop. Our steep metal roof in January made for a challenging installation, but once a weather window permitted, they were super fast. It only took 3 days. SolTerra is a fabulous company to work with. I highly recommended them to anyone considering going solar. We are very happy with our investment and are proud to know that we are making our own power and doing our part.

Tamera Strandwold

SolTerra has been the best to work with in every aspect of the process of our 27 panel system. We chose to go with SolTerra mostly because of our experience working with Nick Richardson. Nick helped us understand the details of our proposal and was readily available anytime we had questions throughout the process. The rest of the crew was wonderful as well. We received updates leading up to our install date and daily communication on the crews progress and next steps for the following day. The crew was thoughtful and very nice to work with. The electrician made sure to answer any and all of our questions. We had extra electrical work done to accommodate an electric vehicle plug for a faster charge. All in all, our experience was easy and seamless from start to finish. We could not be happier with how everything went and the savings we are enjoying by making our own energy from solar. Thank you SolTerra!

Warren Raven

Companies like SolTerra make me proud to work in the solar industry. I can very confidently recommend SolTerra to anyone who is considering getting solar for their house. I've been working with Nick who has been incredibly knowledgeable and helpful through the whole process..thanks!

Tay Beaumont

I had so many issues on my end with getting our system put together but Nick, Marisa and Scott were all so patient and helpful through the whole process! They did a great job with the work, with making sure I understood everything that was happening on both their end and mine. The people who came out and installed the panels were highly efficient, very friendly and an absolute pleasure to work with. I really appreciated everything this company did and am exceptionally pleased with the experience overall as well as the results of the project! I will absolutely be recommending SolTerra to anyone in the area who is thinking about going solar.

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Quick Summary

Table of contents:

Why Washington Homeowners Are Installing Backup Power

Backup Battery vs. Gas Generator: How Each System Works

How does a backup battery work?

How does a gas generator work?

Backup Battery vs. Gas Generator: Cost

Product & Installation Cost

Maintenance & Fueling Costs

Backup Battery vs. Gas Generator: Installation & Setup

Backup Battery vs. Gas Generator: Capacity & Scalability

Backup Battery vs. Gas Generator: Reliability & Runtime

Response time

Long-term operation

Maintenance requirements

Backup Battery vs. Gas Generator: Lifespan & Warranty

Backup Battery vs. Gas Generator: Maintenance

Backup Battery vs. Gas Generator: Safety

Backup battery safety

Gas generator safety

Backup Battery vs. Gas Generator: Noise Pollution

Backup Battery vs. Gas Generator: Air Pollution & Climate Impact

Backup Battery vs. Gas Generator: Works with solar?

Why pair a backup battery with solar?

Backup Battery vs. Gas Generator: Washington Incentives

Which system is right for your Washington home?

Author Bio:

Can You Combine Solar Incentives in the Puget Sound Area?

Is Solar Really Clean Energy?