We help communities and companies to reduce CO2 emissions with clean energy.
Summa Energy designs and delivers large-scale renewable energy solutions, including photovoltaic , clean heat and energy storage solutions to utilities, industrial customers and buildings and properties.
Read more about what we do and our contribution to the global fight against climate change.
Summa Energy is a leading provider of large-scale clean energy solutions, for both renewable electricity and heat systems, including photovoltaic, solar thermal, energy storage and smart control technologies. Our international team has extensive know-how and experience in renewable energy for utilities and industrial processes. Our headquarters and heritage are in Finland, and we act globally to ensure the success of our customers, wherever they may be located.

Mikkeli city, the home of Savosolar received the “Inspiring Solution Award” in 2018 Celsius City Summit for the Ristiina Village project. It is a green district heating energy concept with a clever combination of solar thermal and wood chips.
Savosolar was involved in this award winning project by delivering turn-key solar district heating installation to the Ristiina district heating plant.

Savosolar was happy to sign its so far largest delivery contract with Grenaa Varmeværk in 2018. Savosolar’s highly efficient Savo 15 premium collectors are installed right next to an existing solar collector field which had been commissioned in 2014.
In this turn-key project Savosolar acts as the main contractor enlarging the solar fraction of the district heating network. Its operator, Grenaa Varmeværk, is producing about 146,000 MWh of heat per year. By using solar thermal it has managed to keep their customers´ heat price among the lowest in the whole of Denmark.
The new solar field with Savosolar collectors will increase the overall solar yield and ensure lowest energy production costs also in the future.

This solar district heating system of 941 m2 in Cadaujac is an innovative and eco-friendly project, first of this type in France, develop by our customer AbSolar. The solar production is linked to a geothermal seasonal storage which lead this new neighbourhood to received 100% of renewable heat for their need in heating and hot water.
Savosolar has been responsible of the main part of the solar plant as part of an EPC contract, including the design and then the supply and installation of the solar field, the piping and the solar station with its automation system, as a turnkey solution. The 510 MWh of annual solar production allow to avoid around 100 tons of CO2 emission for such a heating need. With this project, Savosolar maintain is leading position on the French market in the supply of turnkey solar thermal plant for district heating.
This disruptive technology develops and handle by AbSolar is a forerunner project showing the possibility to reduce significantly our carbon footprint for the daily needs of heat and should help us to fight climate changes, while ensuring a mainly fixed cost of energy over 20 years for the inhabitants of this kind of residential district.
At Summa Energy we help our customers to achieve success in their business and environmental work, while striving for the best possible customer satisfaction. See what Mr Peter Blaser, general manager of Fernwärme Ettenheim GmbH, says about our first delivery to Germany.

Summa Defence Plc is a Finnish defense and security technology group supporting industry growth and strengthening industrial production capacity amid geopolitical change. Summa Defence focuses on dual-use technologies related to security of supply, situational awareness, mobility and defense, which benefit the civilian, security and defense sectors while strengthening comprehensive security, security of supply and crisis management capabilities.
The shares of Summa Defence Plc are listed on the Nasdaq First North Growth Market in Sweden (SUMMAS) and Finland (SUMMA).
Solar heat already makes a global difference. 🌍
Every year, solar heating saves over 40 million tonnes of oil and prevents 140 million tonnes of CO₂ emissions.
Meriaura Energy contributes to this growing impact with large-scale projects across Europe — proving that clean heat is not just the future, it’s already here.
Learn more: summaenergy.com/en/home/
#MeriauraEnergy #IndustrialHeat #Decarbonisation #SustainableIndustry #RenewableHeat #solarthermal #Solarthermalenergy #sustainability #globalimpact #cleanheat #industrialprocessheating #cleaninginplace #greenhouses ... See MoreSee Less
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Solar heat for cities of the future. 🌇
District heating plays a key role in Europe’s clean energy shift — and solar thermal makes it even stronger.
When integrated into low-temperature networks, solar heat provides long-term cost stability, low emissions, and local energy independence.
It’s scalable, sustainable, and ready today. ☀
Learn more: summaenergy.com/en/home/
#MeriauraEnergy #IndustrialHeat #Decarbonisation #SustainableIndustry #RenewableHeat #solarthermal #Solarthermalenergy #sustainability #globalimpact #cleanheat #industrialprocessheating #cleaninginplace ... See MoreSee Less
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Sustainable food starts with sustainable heat. 🌱
Modern greenhouses face rising energy costs and growing sustainability demands.
By switching to solar thermal heating, operators can maintain ideal growing conditions while cutting carbon emissions — supporting cleaner, more resilient food production for the future. 🌍
Learn more: summaenergy.com/en/home/customers/greenhouses/
#meriauraenergy #IndustrialHeat #decarbonisation #SustainableIndustry #RenewableHeat #solarthermal #solarthermalenergy #sustainability #GlobalImpact #CleanHeat #industrialprocessheating #cleaninginplace #greenhouses ... See MoreSee Less
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