The Tri-State Area’s Top Solar Installers

Solar Installation Chester County PA

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Trusted solar services:
TerraSol is a top-ranked solar company in the tri-state area.

Our solar installation Chester County PA crews work out of Chadds Ford, right on the county line, and we’ve been designing and building owned solar systems for homes, businesses, and nonprofits since 2009.

As a family-owned solar company, we have completed over 400 projects across Pennsylvania and three neighboring states, with some of our largest installations located right here in Chester County.

We do not offer solar leases or Power Purchase Agreements (PPAs). You retain ownership of the system; we handle the design in-house and remain your provider for installation and maintenance long after the solar panels are installed.

What is the impact of custom solar ownership in Chester County, PA?

By owning their own custom solar installations, homeowners and businesses in Chester County, Pennsylvania, retain 100% of their energy savings, net metering credits, and SREC revenue rather than ceding them to a leasing company. We have installed approximately 2,523 kW of solar capacity in Chester County, resulting in an annual reduction of approximately 1,877 tons of CO2 emissions.

Chester County boasts diverse architecture. From stone farmhouses and modern subdivisions to car dealerships, municipal buildings, schools, and religious centers, every site requires a tailored design.

If your roof is older than anticipated or your electrical panel is undersized, the same team that designed your system will handle the solution.

Residential Solar Installation

Rooftop or ground-mounted solar panels for your home, sized to match your actual energy usage and engineered to withstand local snow and wind loads.

solar installation chester county paCommercial Solar Installation

Rooftop solar systems for dealerships, offices, warehouses, and farms, turning your roof into a source of predictable, fixed-cost energy.

Solar Battery Storage

Backup power and peak-demand savings for homes and businesses, ranging up to fully autonomous microgrids (off-grid), such as our iron-flow battery project in West Grove.

Solar Carports and EV Charging

Carport arrays that shade parking and power Level 2 and Level 3 EV chargers with energy you make on site.

Ground-Mount Solar Fields

Field arrays for campuses and properties with open land, like the 660.8 kW system we built in Malvern.

Solar Maintenance and Reinstallation

Monitoring, diagnostics, repairs, and upgrades, as well as panel removal and reinstallation during roof replacements.

Request service now and we guide guide you from call to installation.

TerraSol Energies has installed about 2,523 kW of solar across Chester County, using 4,436 solar panels on local roofs and fields. Together, those systems produce more than 2.3 million kWh of clean energy a year and cut an estimated 1,877 tons of CO2 annually.

solar installation company in chester countyThese aren’t projections. They’re your neighbors in Malvern, West Chester, Kennett Square, West Grove and Kimberton, running on energy from their own roofs and fields.

2,523 kW Solar installed across Chester County

4,436 Solar panels on local roofs and fields

1,877 tons CO2 cut every year, combined

2.3M+ kWh Clean energy produced every year

Chester County has a lot of variety. Stone farmhouses, modern housing developments, car dealerships along major roads, and municipal buildings, schools, and religious complexes set on spacious grounds. Each site requires a tailored design, and we have successfully completed projects for all of them.

Our team handles electrical, mechanical, and structural engineering, as well as permitting and grid interconnection, meaning a single company manages your entire project.

If a roof turns out to be older than expected or an electrical panel is undersized, the very people who designed your system will resolve the issue. Furthermore, if a property is unsuitable for the project, we will let you know before you sign anything.

We do not calculate potential savings until our engineers have assessed your roof or site. However, three local factors determine almost all the solar estimates we create for Chester County, and you can verify them yourself.

PECO supply rates keep climbing

PECO’s benchmark residential rate (used to compare offers) is set at 11.76 cents per kWh from June 1 to November 30, 2026, up from 11.129 cents in December 2025.

This figure covers only the cost of energy supply. Delivery charges are added on top; consequently, every kWh generated by your solar panels saves you far more than just the supply cost.

See our breakdown of PECO’s 2026 rate increases

Chester County sun, measured on real systems

Our five local installations with complete production data show an average output of approximately 1,219 kWh per year for every kW of installed solar capacity.

This figure ranges from 1,087 kWh/kW (at the Faulkner Buick rooftop in West Chester) to 1,293 kWh/kW (at the Sycamore International installation in West Grove). We size your system based on regional performance, not a national average.

Net metering pays you, not a leasing company

chester county solar installationPECO’s net metering program offsets the electricity you feed into the grid against the electricity you consume (on a kWh-for-kWh basis) and compensates you for any remaining annual surplus at the benchmark rate.

As the owner of the system, you retain 100% of these credits as well as any revenue generated from SRECs (Solar Renewable Energy Certificates).

What those numbers mean for a 10 kW home system

Based on the Chester County average (1,219 kWh per kW), a 10 kW system would generate approximately 12,190 kWh annually. Based solely on PECO’s current supply rate, this translates to savings of around $1,430 for your household in the first year alone.

If the current rate remains constant over 25 years, the total savings reach approximately $35,800, excluding delivery charges, SREC revenue, future rate hikes, and the natural decline in panel efficiency due to aging.

For businesses, the figures add up quickly. Faulkner Buick’s 341 kW system saves the equivalent of the profit from two to three additional vehicle sales each month.

12,190 kWh a year from 10 kW

$1,430 Year-one supply charges offset

$35,800 25 years at today’s supply rate

100% Of the savings stay with the owner

Your real number depends on your roof, shading and usage, which is exactly what our engineering review measures. Figures are estimates based on PECO’s published 2026 residential price to compare and production data from TerraSol’s Chester County projects.

Most of our residential projects in Chester County come from homeowners who plan to stay in their homes. They are looking to lower their electricity bills, own their system outright, and work with a company that will still answer the phone, even 12 years down the line.

We treat your home solar as a long-term solar investment, not a quick sale.

A straight answer on incentives

The 30% federal tax credit for homeowners (Section 25D) does not apply to systems placed in service after December 31, 2025; consequently, older quotes that include it overestimate potential savings.

We model the cost and projected return on investment for your system based solely on current incentives, so the figures you see are the ones you will actually realize.

Want to see finished work near you? Browse homes in Berwyn, Downingtown, West Chester, Malvern and Oxford in our residential project gallery, or learn more about our residential solar installation services.

cost of solar installation in chester countyRoof check first

Our rooftop systems add only 3 to 4 pounds per square foot on average, but we still confirm the structure and remaining roof life before we design anything.

Sized to your real usage

We build the design around your actual utility history, not a rough guess

Built for local weather

Our designs handle 35 to 40 PSF of snow load and sustained wind uplift up to 115 mph.

Battery-ready

We can add storage now or plan the wiring so you can add it later without rework.

Owning your system turns your roof into a fixed, predictable energy cost, and our commercial clients see it on the bottom line.

Faulkner Buick in West Chester saves the equivalent of two to three extra car sales every month, and RevZilla’s facility in Lawnside, NJ saves over $40,000 a year. Add battery storage and you can also cut demand charges and keep running through outages.

Businesses still have access to the 30% Section 48E credit for solar systems placed in service by December 31, 2027. To be ready for a 2027 installation, start engineering now.

2 to 3 cars Monthly savings at Faulkner Buick

$40,000+ Yearly savings at RevZilla

30% Federal credit through 2027

We build for auto dealerships, small and medium businesses, enterprise facilities and farms.

The “elective pay” (or “direct pay”) mechanism allows tax-exempt entities to receive clean energy tax credits as a direct payment; this makes owning a solar installation advantageous, even without a tax liability. The result is reduced operating costs, allowing you to reinvest those savings into your mission.

solar installers in chester countyIn Chester County alone, we provide solar power to a municipality to fully energize its public works department, to a school district where the high school generates approximately 660,000 kWh annually, and to a religious community where a residence for over 150 women is powered by solar energy.

The December 31, 2027, deadline applies to these projects as well.

100% Public Works power, West Goshen

660,000 kWh Yearly at one high school

150+ Residents powered in Malvern

Your property could be our next Chester County project. Tell us about your roof, land or facility and we’ll show you what it can produce.

  • Family owned since 2009, with more than 400 completed projects.

  • Enphase Platinum Installer in the Enphase Installer Network.

  • All engineering in house: electrical, mechanical and structural.

  • Ownership only. No leases, no PPAs, no volume quotas.

  • Life-of-system care from the same regional team that built your system.

Would you like to discover what solar energy can offer your home or business? Simply share us with some details about your property and electricity bills, and we will begin with a transparent technical assessment.

If solar proves to be a viable option, we will develop a custom design and estimate potential savings, taking current grants and incentives into account. If not, we will be equally upfront about that.

Request a Custom Solar Proposal or Call (888) 873-9995!

When you’re ready to choose a local team, we’ll handle every step of your solar installation Chester County PA.

SOLAR SIMPLE

TerraSol makes it easy to switch to solar energy

Request Solar Proposal

Chester County Solar Installation FAQs

Not for new systems owned by residential homeowners. The residential credit (Section 25D) expired for systems placed in service after December 31, 2025.

Businesses, farms, and nonprofit organizations can still benefit from the 30% credit under Section 48E for solar systems placed in service by December 31, 2027.

 

A typical residential system costs between $15,000 and $25,000 (or more), depending on size, roof configuration, and equipment. Commercial system pricing is determined on a project-by-project basis. We provide a comprehensive estimate of costs and potential savings following our technical assessment.

In most cases, yes. Our roof-mounted systems add an average of about 3 to 4 pounds per square foot; they are designed to withstand snow loads of 35 to 40 pounds per square foot and wind speeds of up to 115 miles per hour (approx. 185 km/h). We verify your roof's structure and remaining lifespan before starting any design work.

Yes. We install storage systems for both residential and commercial clients, including a 400 kWh iron-water redox flow battery for Sycamore International in West Grove, capable of operating for over 24 hours without recharging.

Yes. Our specialized customer service team handles monitoring, diagnostics, repairs, and equipment upgrades, as well as dismantling and reinstalling panels during roof replacement, throughout your system's entire lifespan.

REVIEWS

See what our customers say about TerraSol

Enphase - Assets_Platinum_linear_edit
Trusted solar services:
TerraSol is a top-ranked solar company in the tri-state area.