20 Top Renewable (Clean and Green) Energy Companies 2021

Last Updated on October 14, 2021 by Henry John

Decades of industrialization and of excessive fossil consumption have caused Mother Earth to become increasingly hotter resulting in drastic climate change across the globe.

The effect and potential future effects of global climate change have been identified to include longer periods of drought in some regions, frequent wildfire, stronger and more intense hurricanes, melting of glaciers and sea ice, and a huge rise in sea level leading to disastrous floods.

According to NASA, “the effects of human-caused global warming are happening now, are irreversible on the timescale of people alive today, and will worsen in the decades to come”. And the only way future generations can have a better life on Mother Earth is if today’s generation adopts clean and renewable energy.

“Replacing traditional sources of energy completely with renewable energy is going to be a challenging task. However, by adding renewable energy to the grid and gradually increasing its contribution, we can realistically expect a future that is powered completely by green energy” Tulsi Tanti, Founder of Suzlon Group

Two decades ago it was a rare thing to see solar panels on roofs, but now it’s a common sight; a clear sign of the direction the world is going when it comes to energy production.

If you’re interested in investing in Renewable Energy Stocks, check out this article.

Scientists, governments, and clean energy companies across the globe are working together to save Mother Earth and reverse the effects of our disastrous carbon emissions decades ago.

Here are the top 20 Renewable (clean and green) Energy Companies leading the transition from fossil fuels to renewable energy sources:

1. Ørsted

Ørsted develops, constructs, and operates offshore and onshore wind farms, bioenergy plants, and innovative waste-to-energy solutions and provides smart energy products to its customers.

The Danish multinational energy behemoth is the world-leading offshore-wind power producer with a market share of 29%. The company currently powers over 9 million people.

For three years running, the company has been named the world’s most sustainable energy company in the Corporate Knights Global 100 Index. Its renewable energy mix includes wind power, solar energy and storage, and renewable hydrogen.

The energy company has built an impressive installed renewable energy capacity of 12 GW and plans to reach 50 GW of installed renewable capacity by 2030 cementing its position as the world’s number one renewable energy company.

2. Iberdrola

IBERDROLA, S.A. engages in the production, switching, and distribution of electricity and gas worldwide. The Spanish multinational energy giant is one of the leading offshore and onshore wind power producers, the second largest offshore wind power producer after Ørsted.

It distributes electricity to more than 30 million customers in Spain, United Kingdom, the USA, Brazil, Mexico, Germany, Portugal, Italy, and France.

In the first half of 2021, the company’s renewable installed capacity was 35,537 MW with comprises onshore and offshore wind power, hydroelectric power, solar power, battery storage, and mini-hydraulic power).

3. Jinko Solar

JinkoSolar is an energy company that focuses on producing solar energy microcrystalline silicon. They produce monocrystalline furnaces, polycrystalline silicon ingo casting furnaces, and wire cutting and chipping equipment.

The Company distributes its solar products and sells its solutions and services to diversified international utility, commercial, and residential customers.

JinkoSolar has over 15,000 employees and over 200 dedicated R&D professionals spread across its 18 overseas subsidiaries, 16 global sales offices, and 6 productions facilities in Jiangxi, Zhejiang, and Xinjiang Provinces in China, Portugal, South Africa, and Malaysia.

4. First Solar

First Solar, Inc. provides photovoltaic (PV) solar energy solutions in the United States, Japan, France, Canada, India, Australia, and internationally.

It operates in two segments, Modules, and Systems.

The Modules segment designs, manufactures, and sells cadmium telluride solar modules that convert sunlight into electricity to integrators and operators of PV solar power systems.

The Systems segment provides power plant solutions, such as project development; engineering, procurement, and construction; and operating and maintenance services to utilities, independent power producers, commercial and industrial companies, and other system owners.

5. Siemens Gamesa Renewable Energy

Siemens Gamesa supplies wind turbines and power solutions to customers.

The company is a global leader in the renewable energy industry specifically in the development, installation, maintenance, and manufacturing of wind turbines.

Siemens Gamesa’s vision is to be the global leader in the renewable energy industry driving the transition towards a sustainable world.

6. Vestas Wind Systems

Vestas Wind Systems A/S designs, manufactures, installs, and services wind turbines worldwide. The Danish company sells wind power plants, wind turbines, development sites, and spare parts among others.

Vestas (together with its customers) has installed more than 140 Gigawatts of wind power capacity in its 40 years in the wind industry. It has production facilities in more than 12 countries.

Over 70,000 Vestas turbines have been installed in 85 countries around the world.

7. NextEra Energy

NextEra Energy, Inc., through its subsidiaries, generates, transmits, distributes, and sells electric power to retail and wholesale customers in North America.

The company generates electricity through wind, solar, nuclear, and fossil fuel, such as coal and natural gas facilities.

It also develops, constructs, and operates long-term contracted assets with a focus on renewable generation facilities, electric transmission facilities, and battery storage projects; and owns, develops, constructs, manages, and operates electric generation facilities in wholesale energy markets.

As of December 31, 2020, the company operated approximately 28,400 megawatts of net generating capacity.

It serves approximately 11 million people through approximately 5.6 million customer accounts in the east and lower west coasts of Florida with approximately 76,200 circuit miles of transmission and distribution lines and 673 substations.

8. Brookfield Renewable Partners L.P.

Brookfield Renewable Partners L.P. owns a portfolio of renewable power generating facilities primarily in North America, Colombia, Brazil, Europe, India, and China.

The company generates electricity through hydroelectric, wind, solar, distributed generation, pumped storage, cogeneration, and biomass sources.

Its portfolio consists of approximately 19,000 megawatts of installed capacity.

9. Enphase Energy

Enphase Energy, Inc., together with its subsidiaries, designs, develops, manufactures, and sells home energy solutions for the solar photovoltaic industry in the United States and internationally. 

The company brings a system-based, high-tech approach to solar energy, leveraging expertise in semiconductor integration, power electronics, and networking technologies to continually advance the performance, intelligence, and reliability of solar energy systems.

Its products make solar power systems productive, reliable, smart, and safe, increasing the energy harvest of solar panels by up to 25 percent.

Enphase is the biggest solar inverter company with over 40% of the global solar inverter market.

10. Canadian Solar

Canadian Solar designs, develops, manufactures, and sells solar cell and module products that convert sunlight into electricity for a variety of uses.

The Company conducts all of its manufacturing operations in China.

The Company’s products include a range of standard solar modules built to general specifications for use in a range of residential, commercial, and industrial solar power generation systems.

It also designs and produces specialty solar modules and products based on its customers’ requirements.

Specialty solar modules and products consist of customized modules that its customers incorporate into their own products, such as solar-powered bus stop lighting, and complete specialty products, such as solar-powered car battery chargers.

11. Renewable Energy Group

Renewable Energy Group produces and supplies renewable fuels like biodiesel and renewable diesel, renewable chemicals, and other products.

It also utilizes an integrated procurement, distribution, and logistics network to convert natural fats, oils, greases, and sugars into lower carbon intensity products.

With 14 active biorefineries, a feedstock processing facility, research, and development capabilities, and a diverse and growing intellectual property portfolio, REG is committed to being a long-term leader in bio-based fuel and chemicals.

12. SolarEdge Technologies

SolarEdge Technologies, a global leader in the DC power optimizer and solar inverter market. The company provides module-level electronics for solar power harvesting and monitoring systems for residential, commercial, and utility-scale solar photovoltaic installers.

The SolarEdge portfolio of products includes power optimizers and a web portal for module-level optimization and monitoring, as well as PV inverters, specialized to work with power optimizers.

Founded in 2006, SolarEdge established the DC power optimizer segment and holds over 80% of the global DC power optimizer market share. It is also the second largest solar inverter company in the world after Enphase.

13. Hanergy

Hanergy Holding Group, Ltd. (Hanergy) is a multinational clean energy company as well as the world’s leading thin-film solar power company. It is China’s largest privately held energy enterprise encompassing hydroelectricity, wind electricity, and solar electricity generation, and other energy-related services.

The company’s total installed renewable energy capacity is approximately 10GW, which comprises 6 Gigawatts of hydropower projects, 3 Gigawatts of solar energy production capacity, and 131 MW of wind power projects.

Its headquarters is located in Beijing, China, with branch offices in several Chinese provinces, North America, Europe, and the Asian Pacific region.

14. Clearway Energy

Clearway Energy, Inc., through its subsidiaries, engages in the renewable energy businesses in the United States.

As of March 2, 2021, it had approximately 4,200 net megawatts (MW) of installed wind and solar generation projects; and 2,500 net MW of natural gas generation facilities, as well as a portfolio of district energy systems.

Its thermal infrastructure assets provide steam, hot water and/or chilled water, and electricity to commercial businesses, universities, hospitals, and governmental units. As of December 31, 2020, the company had a 1,394 MW thermal equivalent capacity of steam and chilled water.

15. Sunpower Corp.

SunPower Corporation designs, manufactures, and delivers high-performance solar electric systems worldwide for residential, commercial, and utility-scale power plant customers.

SunPower’s high-efficiency solar cells and solar panels generate more power than conventional solar technologies and have a uniquely attractive, all-black appearance.

The company has offices in North America, Europe, Australia, and Asia.

16. Tesla

Tesla, Inc. designs, develops, manufactures, leases, and sells electric vehicles, and energy generation and storage systems in the United States, China, and internationally.

The company is best known for its advances as the leader of the electric vehicle space, however, it is also a strong player in the renewable energy and storage space. It sells its clean energy products to residential, commercial, and industrial customers.

Tesla is a leader in the American solar roof/solar-on-roof space. The company sells solar panels, Tesla Roof, and Tesla Solar Inverters. It has installed more than 3.6 GW of solar energy across 400,000 roofs.

The company’s energy storage products include the Powerwall (a home energy storage device), the Powerpack, and Megapack (large-scale energy storage systems).

17. Sunrun

Sunrun is a United States-based provider of residential solar electricity and solar power services for homeowners. It invented a model known as solar service allowing homeowners to pay for the power, not the panels.

It owns, maintains, and monitors the system while homeowners pay for the electricity it produces at a low, locked-in rate, saving them money over time.

Sunrun operates in twelve states that include Arizona, California, Colorado, Hawaii, Massachusetts, Maryland, New Jersey, New York, Nevada, Pennsylvania, Oregon, and Connecticut.

The company has installed over 23,000 solar and battery systems nationwide, generating a networked solar energy capacity of 4.2 Gigawatts which it supplies to over 600,000 American households.

18. Atlantica Sustainable Infrastructure

Atlantica Sustainable Infrastructure plc owns and manages renewable energy, natural gas, transmission and transportation infrastructures, and water assets in the United States, Canada, Mexico, Peru, Chile, Uruguay, Spain, Algeria, and South Africa.

It owns 34 assets comprising 2,018 MW of aggregate renewable energy installed generation capacity, of which 71% is solar energy; 343 MW of natural gas-fired power generation capacity; 1,166 miles of electric transmission lines; and 17.5 million cubic feet per day of water desalination assets.

19. CropEnergies

CropEnergies AG manufactures and distributes bioethanol, and other biofuels, and related products produced from grain or other agricultural raw materials in Germany and internationally.

The company also produces and sells protein food and animal feed products, including ProtiGrain, a protein animal feed for various types of livestock and pets; wheat gluten for food and animal feed; animal feed from the stillage; and ProtiWanze, a liquid animal feed for cattle and pigs.

In addition, it offers liquefied carbon dioxide; and produces neutral alcohol for beverage, food, cosmetics, and pharmaceutical industries, as well as for industrial applications.

20. Clean Energy Fuels Corp.

Clean Energy is the largest provider of natural gas fuel for transportation in North America, fueling over 35,000 vehicles each day at approximately 500 fueling stations throughout the United States and Canada.

With a broad customer base in a variety of markets, including trucking, airport shuttles, taxis, refuse, and public transit, we build and operate compressed natural gas (CNG) and liquefied natural gas (LNG) fueling stations; manufacture CNG and LNG equipment and technologies for ourselves and other companies; and develop renewable natural gas (RNG) production facilities.

Leave a Comment