2019 Solar Means Business Report

Solar Means Business

U.S. businesses and top global brands are making historic investments in solar energy. As of 2019, Apple leads the nation with the most solar capacity installed, followed closely by Amazon, Target, Walmart and Google. There is 15 times more solar capacity installed by American businesses today than there was a decade ago...

SEIA’s eighth annual Solar Means Business Report follows solar adoption by businesses across the U.S., ranging from some of the country’s largest and most recognizable brands to the small businesses that make up our communities. In addition to the solar systems located on rooftops and at commercial facilities, this report also captures large off-site installations that U.S. companies invest in to power their operations. Both installation types have grown considerably in recent years.

Through 2019, this report tracks more than 8,300 megawatts (MW) of installed solar capacity across 38,000 projects in 43 states, representing more than 70% of all commercial solar capacity installed in the U.S.

Top 10 Rankings

Installed Capacity (MW)
1. Apple 398.3
2. Amazon 369.0
3. Walmart 331.0
4. Target 284.8
5. Google 245.3
Installed Capacity (MW)
6. Kaiser Permanente 181.8
7. Switch 179.0
8. Prologis 133.7
9. Facebook 119.5
10. Solvay 81.4

Commercial Solar Coast to Coast

As solar prices have fallen and options for investing in clean energy have expanded, the number of commercial solar installations has grown rapidly across the country. From rooftop systems on local businesses, to solar parking canopies supporting a corporate headquarters, to large off-site installations powering data centers, these projects are as diverse and varied as the companies themselves.

The map below shows every commercial solar installation tracked in this report. The bubble size corresponds with that system’s solar capacity.

Use the filters and toggles to interact with the data and learn more about how successful U.S. businesses are progressing towards a solar future.

Financing Type

System Capacity

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Workers installing solar panels

Major Brands & Businesses Lead the Way

Companies invest in solar for many reasons: to power their operations, to meet environmental goals or simply to save money on their electricity bills. The companies tracked in this report are leading the way. Whether it supports data centers and computing, retail and product distribution, or manufacturing, these companies are using solar to move their operations forward.

Use the interactive chart below to see how many of the leading corporate brands in America have increased their investment in solar energy over time.

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Growth in U.S. Commercial Solar Installations

Corporate solar adoption has expanded rapidly over the past several years, with two thirds of all capacity installed since 2015. The 1,286 MW installed in 2019 represents a 10% increase from 2018 and is second to only 2017 for annual commercial deployment. The surge in on-site commercial solar continued in 2019, with a record 844 MW installed, while 441 MW of off-site projects were completed. The systems tracked in this report generate enough electricity each year to power 1.6 million U.S. homes.

Annual Installed Corporate Capacity (MW)

Learn More About the Top Corporate Solar Users

Apple Logo


Amazon Logo


Walmart Logo


Target Logo


Google Logo


Kaiser Permanente Logo

Kaiser Permanente

Switch Logo


Prologis Logo


Facebook Logo


Solvay Logo


Kohl's Logo


Commercial Solar Growth Driven by Falling Costs

The price to install an on-site commercial solar PV system declined 12% from 2018 to 2019 and has fallen by 30% over the last five years, allowing corporate solar buyers to increase the size of their solar PV systems and power larger shares of their operations. This drop in prices has also had a meaningful impact on corporate climate goals. 15 of the top 25 companies in this report have publicly committed to achieving 100 percent renewable energy or better.

Price by System Size

Average Commercial System Size

Size Increases as Prices Decline

Exploring the Rankings

The wide variety of businesses that invest in solar energy excel in various ways. The rankings below tease out business leaders in overall solar installed, on-site solar capacity, and total number of installations.

Overall Rankings (On-site & Offsite)

Capacity (MW)
1. Apple 398.3
2. Amazon 369.0
3. Walmart 331.0
4. Target 284.8
5. Google 245.3
Capacity (MW)
6. Kaiser Permanente 181.8
7. Switch 179.0
8. Prologis 133.7
9. Facebook 119.5
10. Solvay 81.4

Rankings by Number of Installations (On-site & Offsite)

1. Target 513
2. Walmart 391
3. Walgreens 230
4. Kohl's 160
5. Aldi 113
6. Macy's 106
7. Kaiser Permanente 91
8. Costco 85
9. Brookfield Properties Retail 68
10. Prologis 64

Overall Rankings (On-site Only)

Capacity (MW)
1. Target 255.3
2. Walmart 161.2
3. Prologis 133.7
4. Amazon 109.0
5. Apple 85.3
Capacity (MW)
6. Kaiser Permanente 71.8
7. Brookfield Properties Retail 65.3
8. IKEA 57.6
9. Macy's 53.3
10. Kohl's 51.8

Corporate Solar State by State

Commercial solar installation density varies across the country depending on the unique environmental, economic and regulatory characteristics of each state. The top states hit the sweet spot in all three categories, while those looking to catch up are often just a smart policy decision away from realizing the economy-wide benefits solar can bring to the business community.

Browse the map to learn more about the top commercial solar adopters in your area.

Tracked solar capacity is not inclusive of every commercial installation in a given state. See methodology in full report.

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