Renewable energy is becoming increasingly important as many countries shift away from fossil fuels. The United Kingdom announced its goal to reach net-zero emissions by 2050 and several companies lead the way with innovative products to help us adapt to renewables. These companies are developing everything from batteries for electric cars to smart energy meters. Here are the ones worth watching.
Renewable Energy Companies in the UK
- Zenobē
- Octopus Energy
- Good Energy
- Ecotricity
- Tevva
Top Renewable Energy Companies in the UK
Tevva manufactures electric trucks and technologies to advance zero-emission transport. Some of the technologies include electric batteries, dual motor systems and hydrogen fuel cell range extenders. Tevva’s products aim to improve the trucking industry by delivering stellar range capabilities and making trucks more cost-effective to operate.
Energy research company Tokamak Energy is developing small, spherical tokamaks, a machine designed to harness the energy of nuclear fusion. It works closely with the UK Atomic Energy Authority at the Culham Centre for Fusion Energy, working together to develop commercially available technology that can deliver electricity to the national grid. Tokamak Energy is based in Oxford.
Ecotricity is one of the oldest green energy companies in the U.K. and has grown its energy grid substantially with the construction of large solar and wind parks in Britain. The company is responsible for connecting homes to the energy grid and providing export tariffs to home solar panel owners. It has also developed new tech like smart meters, which provide accurate insights into how much energy residential homes consume.
Eco Energy World develops and operates solar power plants around the world. The company began in 2008 building utility-scale solar panel projects and has since expanded into developing and marketing solar plus battery storage systems. Eco Energy World is based in London.
OVO Energy has been providing gas and electric energy to residential customers in Britain since 2009. Its Path to Zero program helps energy consumers make changes to work toward carbon-zero energy consumption, and it has planted more than 5 million UK-native trees since 2015. OVO Energy is based in Bristol.
SSE provides energy to large commercial customers across the UK. It focuses on investing in infrastructure for renewable energy, including onshore and offshore wind farms, hydroelectricity, carbon capture, solar power and batteries. SSE has its headquarters in Perth, Scotland, and employs more than 14,000 people.
One of the largest generators of renewable energy in the UK and Ireland, ScottishPower was the first energy company in the UK to generate 100 percent green energy. The company focuses on wind energy and smart grids and operates 38 onshore wind farms containing a total of 1,157 turbines. ScottishPower employs more than 5,000 people.
British energy company Exagen specializes in building and managing utility scale solar farms that are combined with battery storage technology. The company plans to develop 4 gigawatts of solar energy and 3.8 gigawatts of battery storage by 2030. Exagen is headquartered in London.
London-based So Energy supplies gas and 100 percent renewable electricity to residential customers across Great Britain. Its customers can choose how their electricity is sourced, from options including wind, solar, hydro and biomass energy. Founded in 2015, So Energy has more than 300,000 customers across the country.
Naked Energy produces a hybrid solar technology called “VirtuPVT” that produces electricity and heat simultaneously from sunlight. Its hybrid approach allows for more energy production within a smaller area than traditional solar panels, suitable for urban environments and other contexts with limited space. Naked Energy is based in Crawley, England.
Good Energy is a utility company with renewable solutions to help the U.K. reach net-zero emissions. Serving residential homes and businesses, Good Energy supplies electric power and “green gas” derived from renewable biogas sources and offset through other green investments. The company also develops smart hardware like heat pumps and energy meters that aid renewable energy delivery.
Siemens Gamesa manufactures and installs onshore and offshore wind turbines around the world. It operates in 90 countries and has installed more than 107 gigawatts of power capacity since its founding in 2017. Siemens Gamesa operates a factory in Hull and a research center in Sheffield. It employs more than 6,000 people in the UK.
Drax Group is the UK’s largest source of renewable energy, generating power from hydro-electric, sustainable biomass, and pumped hydro storage assets at sites in England and Scotland. In addition to generating power, Drax also performs carbon removals, conducts catchment area analyses and delivers biomass pellets around the world. Drax Group’s UK operations are based in Northampton.
British energy company EDF Energy generates, sells and operates electricity networks. It designs power plants specifically to produce carbon-free electricity, including wind farms, solar plants and battery storage projects. EDF Energy handles more than 5 million residential and commercial energy accounts and employs nearly 12,000 people.
Zenobē develops battery solutions and charging infrastructure for electric buses. Apart from the development of new energy solutions, Zenobē also refurbishes electric vehicle, or EV, batteries by using them as temporary power sources for Powerskids, which act like generators. The company is headquartered in London and has since expanded to Australia, New Zealand and Benelux.
Vestas designs, develops, manufactures, installs and services wind turbines in more than 85 countries, including nearly 2,500 turbines in the UK. The Danish company maintains a factory on the Isle of Wight that manufactures blades for its turbines. In 2024, it announced that the facility would be repurposed to meet the growing UK demand for onshore turbine blades. Vestas employs more than 33,000 people worldwide.
UK energy company E.ON Next is a subsidiary of E.ON, one of Europe’s largest energy companies. It serves more than 5 million residential and commercial customers and offers plans that provide 100 percent renewable electricity. E.ON Next is based in Coventry and employs nearly 1,500 people.
Octopus Energy is a renewable energy provider offering affordable wind and solar-generated energy to U.K. homes and businesses. The company prides itself on being transparent and provides potential customers with online quotes and easy-to-understand export tariffs that explain how customers collect payment when they contribute excess energy back to the grid.
Ripple Energy allows energy consumers to become cooperative owners of large-scale wind farms and solar parks that then supply electricity to those consumers’ homes and businesses. Ripple’s cooperatives have more than 15,000 members and the company has built four large-scale wind and solar energy parks across the UK.
Multinational oil and gas company BP has been one of the UK’s largest oil and gas producers for over 50 years, and has recently been investing in lower-carbon energy solutions like EV charging, offshore wind farms and carbon capture programs. It plans to invest up to £18 billion in the UK’s renewable energy system by 2030. BP is based in London and employs nearly 88,000 people around the world.
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