Largest Solar Power Companies in the United States

In 2026, the United States solar industry stands at the center of a clean-energy revolution. From massive desert installations in Nevada to residential rooftops across California and Texas, many largest solar power companies in the USA are scaling faster than any other energy sector. With federal incentives under the Inflation Reduction Act (IRA) and record-breaking investment, the race to dominate America’s solar market has never been hotter.

But who are the real leaders?

The largest solar power companies in the USA, those driving the nation’s shift toward renewable energy independence. In 2026, solar power isn’t just a clean alternative. It’s a national priority, reshaping how homes, cities, and industries are powered. However, whether you’re an investor looking for growth opportunities, a policymaker shaping sustainable infrastructure, or powering America’s clean-energy future, this list gives you the insights you need.

What Makes a Solar Power Company the Largest in the U.S.?

• Installed Solar Capacity (MW/GW).
• Development Pipeline.
• Financial stability and long-term scalability.
• Geographic Footprint in U.S. markets.
• Vertical Integration like In-house production, engineering, or energy-storage capability.

These criteria ensure the ranking reflects not only company size, but also strategic influence on America’s renewable landscape.

Top Solar Power Companies in the United States (2026 Rankings)

There are many top rated largest U.S. solar companies. It is very difficult to rank them sequentially. but we have given them in our rank based on some essential factors, and depth research that we have mentioned above.

How These Rankings Determined?

Not all solar companies are created equal. To rank fairly, this article uses a multi-metric approach that reflects scale, reliability, and national impact. We have given position of some top American solar power companies relies on some factors. To ensure accuracy and trust, companies were evaluated using US-specific criteria:

• Installed solar capacity (MW/GW) in the United States.
• Revenue tied to U.S. solar operations.
• Market segment leadership (utility-scale, residential, commercial).
• Geographic footprint across United States.
• Industry influence (technology, grid impact, innovation).

Data sources include U.S. Department of Energy reports, public financial filings, industry disclosures, and utility-scale project databases. However, let’s see some of the top American solar power companies.

1. NextEra Energy: America’s Solar Superpower

Best for: large-scale utility solar and wind power in the USA

NextEra Energy is considered one of the biggest solar company in US. It’s established over 100 years and the most diversified renewable energy provider in the United States of America. They have 75 GW energy generation portfolio on different energy sources, such as

• Renewable energy sources: 55%
• Natural Gas: 36%
• Nuclear energy: 8%
• Other energy: 1%

It is located in Florida. It remains the undisputed leader in renewable capacity through subsidiaries like Florida Power & Light and NextEra Energy Resources. NextEra Energy operates more than 12 GW of solar generation in the USA. This giant solar energy company operates over 49 states, and 4 Canadian states. They also supplying solar energy to millions of homes in US. They have involved with some of major projects like

• The Genesis Solar Energy Project (CA)
• Eagle Shadow Mountain (NV)

NextEra continues to define what large-scale solar means in America. Its investments in battery storage and grid modernization signal. The company’s vision is to a fully renewable U.S. grid by 2045.

Why NextEra leads the US Market:

• Largest clean energy company in North America.
• Deep investment in grid modernization and battery storage.
• Strategic focus on the US utility-scale solar and storage integration.
• Aggressive expansion in Texas, Nevada, and California.
• Long-term Power Purchase Agreements (PPAs) ensuring stable revenue growth.

NextEra’s solar strategy focuses on utility-scale dominance. It combines high-efficiency solar farms with long-term Power Purchase Agreements (PPAs) that guarantee revenue stability through 2040.

Specification

• Founded: December 28, 1925
• Number of employees: 16,000+
• Current funding level: $48.7 billion
• Market Capitalization: $28,929
• Price to Earnings (P/E) Ratio:  25.29
• Operating: 72 GW
• Financial stability: Investment-grade, very strong (large, public utility).
• Geographic Footprint: Nationwide / multi-state (USA).
• Vertical Integration: Development, construction, ownership, storage.
• Website: https://www.nexteraenergy.com/

2. First Solar: America’s Manufacturing Backbone

Best for: American-made solar panels and utility-scale projects

First Solar is the biggest solar PV manufacturer in US. They have projected to install around 26 GW in 2026 in the United States. The current operational annual US cell capacity is around 10 GW. First Solar Use American-made solar technology. First Solar (NASDAQ: FSLR) stands unmatched. This company is located in Tempe, Arizona.

The company is the only major solar manufacturer with production facilities entirely within the United States. First Solar is known for thin-film cadmium telluride (CdTe) PV semiconductor for manufacturing PV modules. It gives more privileges against conventional silicon panels in many aspects.

Why First Solar in a 2^nd Leading in the U.S?

• U.S. production capacity exceeding 10 GW, with new Ohio and Alabama factories.
• Innovative thin-film cadmium telluride (CdTe) modules offering high efficiency and low carbon footprint.
• Strong order backlog through 2029.
• Partnerships with utilities like Arizona Public Service and Duke Energy.

First Solar’s domestic manufacturing base supports U.S. energy independence and positions it to benefit from IRA-linked domestic production credits.

Specification

• Founded: 1995
• Number of employees: 8,100+
• Headquarters: Tempe, Arizona, U.S
• Current funding/Investment level: $2B
• Revenue: Around $4.21 billion
• Operating income: $1.39 billion
• Net income: $1.29 billion
• Total assets: $12.1 billion
• Total equity: $7.98 billion
• Operating: 25 GW
• Financial stability: Public, strong balance sheet.
• Geographic Footprint: Manufacturing + development in U.S. & global markets.
• Vertical Integration: In-house thin-film module manufacturing, R&D, project development.
• Website: https://www.firstsolar.com/

3. Enphase Energy, Inc.

Best for: home solar micro inverters and smart energy systems

Enphase Energy is another biggest solar company in America. This company is located in California and headquarters is also in California. Enphase Energy has massive contribution to the renewable energy expansion in the US market. This company develops and manufactures the technology. It makes very easy to use solar power for US homeowners.

Enphase Energy is contributing in high quality micro inverter, EV (Electric vehicle) charger, solar panel installer, and electronic device manufacturing. However, Enphase Energy company is considered the giant micro inverter manufacturer and seller in the world. They are saying Enphase has shipped tens of millions of micro inverters.

• It shipped 784.6 MW DC worth of IQ3 micro inverters globally.
• Enphase shipped a record 195 MWh of its IQ battery systems.
• US manufactured IQ8 micro inverter have been shipped over 78 million micro inverters.
• It also states that U.S. manufacturing facilities can produce 5 million micro inverters per quarter

Enphase has shipped around 83.1 million micro inverters, and more than 4.9 million in over 160 countries. It helps millions of people to obtain clean, affordable, and reliable energy.

Why Enphase Energy in a Leading Place in the U.S?

Due to smart micro inverter technology, integrated energy ecosystem, residential solar market reputation and reliability Enphase Energy limited has taken a leading position in the USA. This company achieved

• Enphase Energy reported $410.4 million in revenue (GAAP) and a non-GAAP gross margin of 49.2%.
• For the nine months ending 30^th September 2025, revenue was approximately $1.13 billion (up 19%).
• Net income (non-GAAP) was $117.3 million.
• Free cash flow was $5.9 million.
• The company’s guidance estimates revenue of $310 million to $350 million.

So, revenue and profitability remain in a good stage, although margins are under pressure from trade policy and supply chain constraints.

Specification

• Founded: 2006
• Number of employees: 3500+
• Headquarters: Fremont, California, U.S
• Current funding/Investment level: $1.53 billion in cash
• Revenue: Around $410 million
• Operating income: Approximately $78 million (GAAP)
• Net income: Around $72 million (GAAP) or $117 million (non-GAAP)
• Total assets: Approximately US $3.17 billion
• Total equity: Around $121 million
• Financial stability: Private
• Geographic Footprint: Manufacturing + development in U.S. & global markets.
• Website: https://enphase.com/

4. Trinity Solar

Best for: residential rooftop solar installation in the Northeastern USA

It is another largest American solar power company. Trinity solar works for roofing solar installation. They are very renowned in this field. Trinity also provide own made solar panel that is called Trinity Solar. It is very renowned around the world. Beside the US, may countries use Trinity Solar in their solar project. However, Trinity Solar is available in the market over 3 decades and acquire memorable achievement, such as

• 125000+ home based solar system installation in the USA only.
• Up to 25-year labor guaranty.
• Ranked 12 times US top solar contractor.

They have wide service area in the United States, let’s see a few of them.  

• Connecticut
• Delaware
• Florida
• Maryland
• Massachusetts
• New Hampshire
• New Jersey
• New York
• Pennsylvania
• Rhode Island
• Ohio

Trinity markets itself as the largest privately-held residential solar installer in the nation. So, if you are from anyone states of them, then you may think about Trinity solar for your roof top installation system. 

Why Enphase Energy in a Leading Place in the U.S?

Trinity Solar is considered a leading residential solar energy company in the United States mainly because of its scale, longevity, and U.S. regional impact especially across the East Coast.

• Longstanding Presence & Experience
• Large Residential Installation Footprint
• Strong Regional Focus in the Northeast & Mid-Atlantic
• Broad Service Offering
• Growth Backing & Business Scale

Trinity Solar energy company leads in the American solar market. It is mainly because of its extensive installation experience, large customer base across key states, regional dominance in the Northeast/Mid-Atlantic, comprehensive home solar services, and strong business growth.

Specification

• Founded: 1994
• Number of employees: Around 2,877
• Headquarters: 2333 Route 34, Wall Township, New Jersey, USA
• Current funding/Investment level: Private Equity investment from TSG Consumer Partners
• Revenue: Around $600 million /year
• Operating income: More or Less 2 Billion
• Net income: Around $599.8 million to over $2 billion/year
• Financial stability: Privately held with ongoing PE backing
• Geographic Footprint: Residential solar + battery + energy services in Northeast & Mid-Atlantic states
• Website: https://www.trinitysolar.com/

5. SOLV Energy

Best for: utility-scale solar EPC and O&M services

SOLV Energy is a leading American renewable energy company in California. It focuses on designing, building, and operating utility-scale solar power, battery storage, and high-voltage infrastructure projects in North America. SOLV Energy has delivered over 20 GW of solar capacity and manages more than 18 GW of operating assets in the US.

This American energy company has a leadership in engineering, procurement, construction (EPC) and operations & maintenance (O&M) with proprietary technology. However, how much solar system SOLV Energy installed? Let’s see

• Constructed more than 500 utility-scale solar.
• Installed 20 GW of generating capacity.
• Manages/maintains 18+ GW of solar asset.

“1 GW of solar can power about 750,000 U.S. homes, so 20 GW is very significant”.

In 2024, SOLV Energy is identified as the #1 solar EPC contractor in the U.S. (by capacity installed) with 13 + GW built. So it can be considered another leading solar power company in the United States. SOLV Energy has built more than 500 utility-scale projects (solar + storage + T&D infrastructure).

Why SOLVE Energy in a Leading Place in the U.S?

SOLV Energy holds a leading position in the U.S. solar industry because it focuses on large, utility-scale solar and energy storage projects that power cities, utilities, and major businesses across the United States. Unlike many solar companies, SOLV Energy supports projects from design and construction to long-term operations, making it a trusted, long-term partner in America’s clean energy transition.

Let’s see what are the key reasons to become SOLV Energy leader in the United States.

• Specializes in utility-scale solar, where most U.S. solar power is generated
• Provides end-to-end services (engineering, construction, and maintenance)
• Operates nationwide across major U.S. power grid regions
• Strong expertise in solar + battery storage integration
• 15+ years of experience in the American solar market
• Trusted by utilities and large energy buyers for reliability and safety

Specification

• Founded: 2008
• Number of employees: Approximately 2,300+
• Headquarters: San Diego, California, USA
• Current funding/Investment level: not publicly reported
• Revenue: Annual revenue around $500 million to $1 billion (Estimated)
• Operating income: not publicly disclosed
• Net income: not publicly available
• Financial stability: Solid financial position
• Geographic Footprint: United States (25+ states)
• Websites: https://www.solaris-energy.com/

6. Palmetto Solar

Best for: home solar with flexible financing and digital tools

Palmetto Solar is a leading residential solar energy company in the United States. It helps homeowners switch to clean, affordable solar power. It combines technology, financing options, and customer support to make going solar simpler, more accessible, and cost-effective for people across many U.S. states.

Why People Choose Palmetto?

• Affordable options
• Custom plans
• Ongoing support (Monitoring, solar system maintenance, and warranty service)
• Easy tools (A mobile app to track and monitor energy production and savings in real time)

Palmetto solar power company operates in multiple American states (30+). This company also works with a network of pre-vetted local installation partners to serve homeowners nationwide. This wide footprint helps it offer competitive pricing and access to solar in many regions. Palmetto offers several ways to pay for solar, such as

• Cash purchase (full ownership of the system).
• Solar loan (manageable monthly payments with eventual ownership).
• Solar lease/PPA (power purchase agreement), (no upfront cost).
• Maintenance included with some plans.

Why People Choose Palmetto Solar (USA)

People choose Palmetto Solar because it combines flexibility, transparency, ongoing support, and trusted installation partners. People also choose Palmetto Solar because it makes going solar simpler, more affordable, and more dependable. There are some other options that makes it more powerful solar energy company in the United States.

• Easy and transparent process.
• Flexible payment options.
• Trusted local installers.
• Ongoing monitoring and support.
• Great for first-time solar buyers.
• Strong warranty and protection.
• High customer satisfaction.

Specification

• Founded: 2010
• Number of employees: Approx. 600 to 650 employees
• Headquarters: Charlotte, North Carolina, United States
• Current funding/Investment level: Around $1.8 billion+
• Revenue: Around $75 million in 2025
• Operating income: Not publicly disclosed
• Net income: Not publicly disclosed
• Financial stability: Financially stable and well-capitalized
• Geographic Footprint: 30+ states in the United States
• Website: https://palmetto.com/

7. EDF Renewables North America

Best for: utility-scale and commercial solar with storage integration

EDF Renewables North America is also known as EDF power solutions North America. It is a major clean energy company in the United States. This energy company focuses on developing, building, and operating large renewable energy projects. Especially solar power across the United States and North America. It is part of the global EDF Group. It is one of the world’s largest energy companies with decades in renewable energy.

What they do in solar system? EDF Renewables North America offers a range of solar energy solutions that serve large customers and the grid:

• Grid-Scale Solar Projects
• Distribution-Scale Solar
• Onsite Solar

EDF Renewables North America has been involved in the development of thousands of megawatts of solar capacity in the United States of America and North America. This amount of energy generation and development includes utility-scale and distributed solar projects.

Why People Choose EDF Renewables North America Solar Energy Company?

EDF Renewables North America reputation for professional project execution, strong engineering, and adherence to safety and environmental standards makes them a trusted name in the U.S. solar industry. However, people choose EDF Renewables North America because:

• They understand the U.S. solar market.
• Offer comprehensive solar solutions from large utility farms to commercial solar.
• Integrate solar with energy storage.
• Provide flexible financing options.
• They bring economic and environmental benefits to communities.
• They have a reputation for quality and reliability.

Specification

• Founded: 1987
• Number of employees: Around 1,800.
• Headquarters: 15445 Innovation Drive, San Diego, California, USA.
• Current funding/Investment level: Funding figures aren’t publicly reported.
• Revenue: Around $610M annual revenue.
• Operating income: Not publicly released.
• Net income: Not publicly released.
• Financial stability: Stable and supported by major parent (EDF Group).
• Geographic Footprint: USA, Canada, Mexico (multi-GW projects).
• Website: https://www.edf-re.com/

Comparison Table of Largest U.S. Solar Companies (2026)

Let’s see a comparison table and know clearly about the best solar energy companies in America.

How to Choose the Right Solar Company in the US?

Choosing the right solar company in the United States is essential to maximize savings, system performance, and eligibility for U.S. incentives. Follow these key steps for choosing the best solar energy company for your required service.

• Verify US Licensing & Certifications
• Check Experience in Your State
• Confirm Access to US Incentives
• Compare Warranties & Equipment
• Read Reviews from US Customers

Final Thoughts

The largest solar power companies in the USA are shaping how America generates electricity in 2026. Whether you are a homeowner, business owner, or researcher, understanding who leads the market and why helps you make smarter energy decisions. As solar adoption accelerates, companies that combine scale, innovation, and reliability will continue to dominate the U.S. clean energy landscape.

FAQs

Which Solar Company has Produced the Largest Return?

In the U.S. market, First Solar has delivered some of the strongest long-term investor returns, driven by:

• U.S.-based manufacturing
• Utility-scale demand
• Federal incentives under U.S. clean energy policies

What Are Challenges Facing the Solar Industry?

The major challenges facing the U.S. solar industry include:

• High upfront installation costs
• Supply chain and equipment availability
• Grid interconnection delays
• Changing state-level solar policies
• Skilled labor shortages

How Affordable Is Solar in the United States?

Solar energy is more affordable than ever in the USA. With the 30% federal solar tax credit, many homeowners can recover installation costs within 6 to 10 years, depending on their state and electricity rates.

Who is the Largest Solar Power Company in The USA?

NextEra Energy is currently the largest solar power company in the United States based on installed capacity and generation.

Which Solar Company is Best for Homeowners in The US?

SunPower and Tesla Energy are top choices for U.S. homeowners, depending on efficiency needs and battery preferences.

Are U.S. Solar Companies Reliable in 2026?

Yes. The U.S. solar industry is highly regulated, technologically advanced, and supported by long-term federal incentives.

Is Solar Power Growing in The USA?

Yes. Solar energy is one of the fastest-growing power sources in the United States.