Today Sweden uses mainly its own renewable energy sources, such as water, wind, sun, and biomass. It also, to a certain extent, imports nuclear fuel, biofuels, and fossil fuels such as oil and natural gas. Sweden currently has the EU’s highest share of renewables in the national energy mix (54.6%), and the grid stability is 99.9%.

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The country is the global leader in district heating and cooling solutions, heat-to-electricity conversion and energy reuse. It also hosts the leading innovators in electrification, digitalisation, HVDC lines, substations and energy quality solutions. Right now, there are more than 30 test beds focusing on high voltage engineering, solar and wind power, battery storage, fuel cell technologies, hydrogen applications, heating and cooling solutions, active in Sweden. Sweden’s knowledge, investment, and innovations in sustainable energy production such as battery production, wind, solar, biomass, and hydrogen technology, district energy, and grid modernisation is therefore world-leading.

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In Sweden, utility giants, industrial companies and startups are working together with researchers to develop and commercialise clean energy technologies for a variety of applications. Further opportunities can be found in the production of low-carbon hydrogen, synthetic fuels and biofuels which will create a bridge for clean electricity in heavy industry and long-haul transport. Another current project partly funded by Vinnova is the Energihamnen in Malmö, a pilot project to develop a sustainable and self-sufficient energy system that will make industries less vulnerable to access to external electricity and gas.

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In Sweden, hydrogen energy is starting to become a key component of the country's transition to sustainable energy. Sweden is therefore investing in hydrogen infrastructure and research to further support the development and adoption of these innovative  technologies. With abundant renewable resources like hydropower, wind, and biomass, Sweden is well-positioned to produce green hydrogen through electrolysis (where water is split into hydrogen and oxygen using renewable electricity). This green hydrogen can then be used as a clean fuel for transportation, heating, industrial processes, and energy storage, and thus reducing carbon emissions. Nilsson Energy, a Swedish start-up, specializes in hydrogen energy solutions, focusing on developing innovative systems for production storage and utilization of hydrogen, wherein renewable energy sources like solar and wind are combined with electrolysis technology to produce green hydrogen, which can be stored and used when needed for various applications.​