Renewable energy makes up approximately 40 percent of the power generated in the United Kingdom. In keeping with a global trend of increasing reliance on energy derived from renewable resources, businesses specializing in wind, solar and other alternative power sources have been building their presence in the U.K. The following London companies are focused on renewable energy solutions.
Top Renewable Energy Companies in London
- Octopus Energy
- Eco Energy World
- So Energy
- Ripple Energy
- Exagen
Renewable Energy Companies in London to Know
Reactive Technologies makes systems that help all the players in the energy ecosystem, from grid operators to utilities to regulators, make a smooth transition to renewable energy. Its signature Grid-Sonar product produces data that helps make the best use of electricity supplies, and save money, too. The company is based in London and was founded in 2010.
Eco Energy World uses utility-scale photovoltaics and battery storage systems to offer renewable solar on a macro scale. Based in the U.K. and offering its services around the globe, EEW identifies potential greenfield sites, establishes grid connections and permits, secures financing and contracts solar field construction.
So Energy offers renewable power to consumers in the U.K. at a value rate, incentivizing them to switch over from carbon-based energy sources. After six years as a founder-operated startup, the company merged with ESB Energy in 2021 in order to grow its reach and market share to the point that it’s become a leading supplier of green energy to the U.K.
Zero makes synthetic, fossil-free fuel for jets, race cars and cruise ships. The company, formed in 2020, says its fuel can be used in existing engines — no retrofitting needed — and that it performs on par with fossil fuels. Zero is based in London.
EDF Renewable Energy’s renewable lineup includes solar, both onshore and offshore wind, green hydrogen and energy storage. Its UK and Ireland division has 27 sites, with 530 MG of capacity. The company has been tapped to provide solar energy to London’s Stansted airport, which plans to be net zero carbon emissions by 2038.
Ripple Energy runs a green energy platform that allows consumers to purchase co-op shares of large-scale wind farms and solar fields. Once they’ve invested in the energy sources, consumers select one of Ripple’s energy supply partners to ensure electricity generated by their investment is used to power their homes at a low rate.
Octopus Energy is a utility company that supplies green energy to more than 5 million U.K. consumers and businesses. Its sustainability-focused solutions also cover savings on electric vehicle charging. One of its products is Intelligent Octopus Go, which lets electric EV drivers charge their vehicles at a discount rate with an app-based charge schedule that also provides six hours of affordable nightly home energy.
OVO’s goal is to provide renewable and clean energy for everyone. In addition to gas and electricity, it offers solar panels and heat pumps as well as home EV chargers. The company, which plans to be net zero with carbon emissions by 2025, says it has planted millions of trees around the UK.
Voltalia is both a generator and seller of renewable energy, most notably wind and solar. Projects around the world include a group of four wind farms in northeast Brazil, which generate 108 MW of energy and a giant solar project in upper Egypt. Voltalia is based in France and has an office near London.
Exagen builds and manages renewable energy sites that include both utility-scale solar parks and battery storage for grid power. As a company fundamentally concerned with preserving the ecology of the earth, Exagen aims to minimize environmental impact at installation sites by avoiding development in protected or sensitive areas. Exagen partners with landowners — often agricultural businesses — to develop installations that offer them secure, sustainable income as well as green energy.
