Home » Uncategorized » 7 Best Solar Companies in the US for 2018

Solar energy in the United States has skyrocketed in popularity over the past couple of decades. Thanks to technological innovations in photovoltaic technologies and lithium-ion batteries, residential, and commercial solar energy have become an affordable source of renewable energy for millions of Americans.

Since the 1970s, the solar industry has rocketed while the cost of solar panels has dropped dramatically. According to the business experts at Bloomberg, the cost of solar energy in 2018 is 0.66% of what it was in the 1970s. That’s a price reduction to only 1/150th of its cost over a 40 years span.

With dozens of US-based solar energy companies in operation, the United States is in the middle of what can only be described as a solar renaissance with solar panels seen on every street corner. As the price of solar continues to plummet in comparison to fossil fuels, we can expect more activity in the US solar energy industry in the years to come.

With so many companies vying for the top spot as America’s solar leader, it can be hard to tell which companies are at the forefront and which are lagging. To help you get a clearer picture of the US solar industry, we put together this list of the best solar companies in the US.

SolarCity Corporation


Based out of San Mateo, California, SolarCity is one of the world leaders in the residential and commercial solar panel markets. A subsidiary of Tesla Inc., SolarCity was founded by PayPal and SpaceX founder Elon Musk in 2006 as a side venture.

Since its founding, SolarCity has grown exponentially to become one of the few critical innovators in the American solar energy industry. This is because SolarCity invests massive amounts of resources into a full end-to-end suite to services, from research and development (R&D) to household installation.

The experts at SolarCity have been responsible for some of the most groundbreaking developments in the solar energy world. Their world-class engineering teams have created solar chargers for electric vehicles, invisible solar roofs that look like regular rooftop shingles, and high capacity Li-Ion batteries known as Powerwalls.

Solar Five

While not often included on lists of the best solar companies in the US, Solar Five is one of the leading forces in the residential solar energy space. With offices in Massachusetts and Florida, Solar Five serves local communities by guiding eco-friendly homeowners through the solar panel purchasing and installation processes.

The team at Solar Five are notable for their value-driven commitment to sustainability and equality. They believe in a world where everyone, regardless of income, can help make the world a better place through the adoption of solar power. That’s why countless Americans have trusted Solar Five with their solar panel installation and maintenance services.

Horizon Solar Power

Horizon Solar Power holds the title of California’s top solar installer. Since 2008, the team at Horizon Solar Power has earned a reputation as one of the world’s most trusted solar panel designers and installers. Plus, with an A+ rating from the Better Business Bureau (BBB), you know you can trust them with handling your transition to solar.

If you are based in California, Horizon Solar Power may be the ideal choice if you want the most value out of your solar installer. They offer competitive rates, fair long-term contracts, and lots of built-in maintenance coverage. This gives their customers peace of mind, knowing that they have made a responsible investment in their property’s future.



Sungevity is dedicated to pushing solar energy forward in the US. Since their inception, Sungevity has powered thousands of households in the Western United States with sunshine alone. Their innovation in the solar energy industry has sparked a competitive business climate for solar companies on America’s Pacific Coast.

Their patented Sungevity Energy System generates an average of 6 kW of energy over two decades. Consequently, this eliminates about 118 metric tons of greenhouse gas emissions—that’s the equivalent of nearly 300,000 miles worth of CO2 emissions from a standard mid-sized vehicle.


SunPower Corporation is a publicly-traded solar energy company based in San Jose, California. Unlike other solar companies, which generally deal with installation and maintenance, SunPower focuses on design and manufacturing.

Their signature energy system is based on photovoltaic technology developed by researchers at Stanford University. Over time, SunPower has refined these technologies to optimize them for household and commercial use. SunPower is owned by French energy conglomerate Total S.A., which is one of the largest energy companies in the world.

In 2018, SunPower acquired SolarWorld Americas to grow their production capacity. Since then, they have quickly gained a reputation as one of the best solar companies in the US thanks to their massive manufacturing operations across the country.


Soligent Distribution is America’s leading solar energy distributor. Across their nationwide supply chain, they procure and install thousands of customers’ solar equipment every year. They also provide engineering and maintenance services. To top it all off, they also offer low-income financing options for those are otherwise would not be able to afford their services.

With operations based in Northern California, Solingen has a vast distribution network spanning from New Jersey to the Pacific. No matter where you live in the United States, Soligent can provide award-winning expertise, installation, and training for their solar equipment. This makes Soligent one of the best choices among full-service solar energy providers.


At first glance, PetersenDean is a regular roofing contractor. However, in recent years, PetersenDean has expanded into the world of household, commercial, and industrial solar energy contracting. No matter where you live in the United States, the professionals at PetersenDean can provide you with stellar solar solutions to meet your specific needs.

PetersenDean offers excellent financing options for customers, with the option to lease or buy according to one’s preference. With over 30 years of experience in the roofing and solar energy industries, PetersenDean is undoubtedly one of the best solar companies in the US and a global leader in the field of rooftop solar design and installation.