25 Growing Renewable Energy Startups

by Josh Howarth - July 29, 2021

The global renewable energy market is expected to grow at a CAGR of 6.1% and reach a market size of $1.5T.

Of all energy sources available, renewable energy was the only one that saw an increase in demand in 2020, despite the pandemic.

In 2020, renewable capacity increased by 45%--around 280GW. This represented the largest year-on-year increase since 1999.

Government legislation, decreasing prices and environmental consciousness are some of the reasons behind this fast growth.

This list presents 25 growing startups that are making an impact on the renewable energy space.

1. Enpal

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5-year search growth: 99X+

Search growth status: Regular

Year founded: 2017

Location: Berlin, Germany

Funding: $288M (Later Stage VC)

What they do: Enpal manufactures solar panels. In addition to manufacturing, the company also carries the service of installing the panels. The company is in its 12th year of operations and, according to Enpal, they have finished more than 8000 solar projects.

2. Proton Technologies

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5-year search growth: 5100%

Search growth status: Regular

Year founded: 2016

Location: Alberta, Canada

Funding: $360K (Angel)

What they do: Proton Technologies has developed a hydrogen processing system that converts hydrogen reservoirs into thermal generators. This process eliminates pollutants and thus, offers a source of clean, renewable energy. The company is looking to start selling their energy by the end of 2021.

3. EH Group

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5-year search growth: 175%

Search growth status: Peaked

Year founded: 2017

Location: Nyon, Switzerland

Funding: $4.36M (Later Stage VC)

What they do: EH Group has invented a green fuel cell technology that converts the chemical energy of hydrogen cells into clean electricity. According to Pitchbook, the company is looking to close a $2.7M pre-Series A funding round from Family Office by the end of July 2021.

4. Epishine

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5-year search growth: 388%

Search growth status: Regular

Year founded: 2016

Location: Linkoping, Sweden

Funding: $14.01M (Later Stage VC)

What they do: Epishine has developed a panel that can harvest indoor light and generate energy, which can then be used to power low-power appliances. The company claims that their device can reduce the environmental impact of batteries by up to 99%.

5. Common Energy

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5-year search growth: 276%

Search growth status: Regular

Year founded: 2017

Location: New York, New York

Funding: Undisclosed (Early Stage VC)

What they do: Common Energy is a electricity management platform that allows households to connect their electricity system to renewable energy sources. To date, the company has connected over 100K households’ electricity accounts to renewable energy sources.

6. Hydrogen One

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5-year search growth: 292%

Search growth status: Regular

Year founded: 2017

Location: Vancouver, Washington

Funding: Undisclosed (PE Growth)

What they do: Hydrogen One is a zero-pollution hydrogen fuel producer. It produces large amounts of energy that are designed to be used in an industrial and commerce setting. The company announced that it is looking to close a deal that would see their acquisition by Ammpower.

7. Carbo Culture

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5-year search growth: 0%

Search growth status: Peaked

Year founded: 2013

Location: Helsinki, Finland

Funding: $6.88 (Seed)

What they do: Carbo Culture has developed a technology that converts waste biomass into carbon-negative charcoal that can be used to generate energy. The startup aims to remove a gigaton of CO2 by 2030 through the use of its technology.

8. Purpose Energy

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5-year search growth: 206%

Search growth status: Regular

Year founded: 2008

Location: Windham, New Hampshire

Funding: $4.25M (PE Growth)

What they do: Purpose Energy provides a waste management system. It takes organic waste produced by the brewing industry and converts that to renewable energy and clean water. The company is funded by 6 investors over 7 funding rounds.

9. Global Energy Generation

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5-year search growth: 200%

Search growth status: Peaked

Year founded: 2016

Location: Philadelphia, Pennsylvania

Funding: $240M (PE Growth)

What they do: Global Energy Generation operates wind and solar farms intended to generate renewable energy for industrial and private use. Their wind and solar farms span over 21,000 acres around the world.

10. Next Energy Technologies

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5-year search growth: 1100%

Search growth status: Peaked

Year founded: 2010

Location: Santa Barbara, California

Funding: $38.3M (Series C)

What they do: Next Energy Technologies provides energy generating windows. Their windows are transparent and harvest solar energy that can then be used to power houses and buildings. Next Energy Technologies was one of the five companies selected to join the global IN2 program by Wells Fargo.

11. Piclo

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5-year search growth: 1700%

Search growth status: Peaked

Year founded: 2013

Location: London, England

Funding: $7.53M (Series A)

What they do: Piclo operates a cloud-hosted SaaS platform that is designed to connect companies with spare renewable energy supply to those demanding extra energy. To date, the platform has managed to oversee the transfer of more than 10 gigawatts of energy.

12. Moment Energy

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5-year search growth: 727%

Search growth status: Exploding

Year founded: 2019

Location: British Columbia, Canada

Funding: Undisclosed (Seed)

What they do: Moment Energy repurposes vehicle batteries into battery units that can store renewable energy. The startup won the Spring Activator’s 2021 National Impact Investor Challenge and has recently partnered with Nissan North America to collaborate on the supply chain side of the business.

13. Freyr Energy

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5-year search growth: 99X+

Search growth status: Regular

Year founded: 2014

Location: Telangana, India

Funding: $3.03M (Series A)

What they do: Freyr Energy provides solar-based energy solutions. In addition to solar panels, they also offer tracking services that allow users to get a better understanding of how much energy their solar system is generating. According to the startup, their solutions help clients reduce their electricity bill by up to 90%.

14. Energy Materials

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5-year search growth: 100%

Search growth status: Regular

Year founded: 2010

Location: Rochester, New York

Funding: $6.38M (Angel)

What they do: Energy Materials manufactures high-speed perovskite PV panels that harvest and generate solar energy. The startup currently owns 14 different patents that secure its right to their manufacturing technology.

15. Liquid Wind

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5-year search growth: 383%

Search growth status: Regular

Year founded: 2015

Location: Gothenburg, Sweden

Funding: $8.02M (Series A)

What they do: Liquid Wind produces alternative fuel. Its patented technology uses renewable energy to produce Hydrogen, which is then combined with CO2 and water to produce their carbon neutral liquid fuel. The company is now looking to expand by establishing a new manufacturing center in France.

16. Rebel Energy

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5-year search growth: 711%

Search growth status: Regular

Year founded: 2017

Location: London, England

Funding: $680K (Crowdfunding)

What they do: Rebel Energy is a supplier of energy that has developed a credit system that allows households to improve their credit rating while being supplied with clean, renewable energy. The company’s solution is still in its beta testing phase.

17. Battery Resourcers

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5-year search growth: 0%

Search growth status: Regular

Year founded: 2015

Location: Worcester, Massachusetts

Funding: $22.85M (Series B)

What they do: Battery Resourcers are the creators behind the technology used to recycle lithium-ion by using hydro energy and thus, reducing the environmental impact of lithium-ion battery recycling. The company has been funded by 13 investors over 9 funding rounds.

18. GridBeyond

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5-year search growth: 99X+

Search growth status: Regular

Year founded: 2007

Location: Dublin, Ireland

Funding: $31.61M (Later Stage VC)

What they do: GridBeyond offers a smart grid energy management system. It allows households to connect to grid systems that generate their energy from renewable sources. The company is estimated to generate around $7M in yearly revenue.

19. AquaGreen

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5-year search growth: 66%

Search growth status: Peaked

Year founded: 2014

Location: Roskilde, Denmark

Funding: $800K (Seed)

What they do: AquaGreen is a biomass treatment company that uses waste biomaterial and converts that into renewable energy. The company is funded by 9 investors, with Nordic Alpha Partners being their most notable one.

20. Bennamann

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5-year search growth: 0%

Search growth status: Regular

Year founded: 2011

Location: Cornwall, England

Funding: $3.53M (Later Stage VC)

What they do: Bennamann has developed technologies that allow using biomethane as a source of renewable energy. Through its system, the company is capable of extracting and storing biomethane which is then used to generate fuel, heat and electricity. Bennamann reported revenue growth of 89%.

21. BlueSky Energy

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5-year search growth: 340%

Search growth status: Regular

Year founded: 2012

Location: Frankenburg, Austria

Funding: $120K (Crowdfunding)

What they do: BlueSky Energy manufactures saltwater-based storage systems designed to store renewable energy. In 2021, the company started an equity crowdfunding campaign to raise $1.07M in funding, however, they fell short of their target.

22. Khepra

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5-year search growth: -100%

Search growth status: Peaked

Year founded: 2019

Location: San Francisco, California

Funding: $250K (Early Stage VC)

What they do: Khepra operates reactors capable of generating renewable energy while reducing waste. These reactors break down the chemical bond of plastic and other waste and in the process, release chemicals used to generate renewable energy. The company joined IndieBio’s biotechnology program.

23. Blue Elephant Energy

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5-year search growth: 316%

Search growth status: Regular

Year founded: 2016

Location: Hamburg, Germany

Funding: $89.76M (Corporate)

What they do: Blue Elephant Energy is a green energy development firm. The company purchases and runs wind and solar parks, specifically in Western and Central Europe. To date, the startup supplies over 780K households with green energy.

24. DST Innovations

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5-year search growth: 4000%

Search growth status: Regular

Year founded: 2011

Location: Bridgend, Wales

Funding: $10.04M (Angel)

What they do: DST Innovations researches and develops sources of renewable, clean energy for commercial and industrial use. The company currently owns 14 patents for products they have developed.

25. Sabella

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5-year search growth: 133%

Search growth status: Regular

Year founded: 2008

Location: Quimper, France

Funding: $25.73 (Later Stage VC)

What they do: Sabella manufactures and sells turbines that generate energy from ocean streams. The company’s current revenue is $1.2M. This represents a three-year cumulative growth rate of 209.98%.

Conclusion

This concludes our list of growing renewable energy startups.

Startups in this space are increasing renewable energy usage by making it cheaper and more widely accessible.

As can be noted from our list, industry growth is supported by more effective producing, storing and utilizing systems.

Written By
Josh Howarth
Co-founder of Exploding Topics.
548 Market St. Suite 95149
San Francisco, California
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