Powering
sustainability

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.

Total installed capacity

78

MW

AvErage yearly energy production

89900

MWh/Y

co2 emissions eliminated total

19840

tons CO2 avoided

savosolar-who-we-are

Who are we

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.

Our References

Mikkeli

Largest solar thermal plant in Finland

Savosolar has been selected as general contractor to build the largest solar thermal system in Finland to date, on behalf of Etelä Savon Energia Oy for its district heating network, which supplies households with healthy heating. The plant operate as an additional peak load sources during summer season while the main boilers are out of service.

Kherson

Savosolar’s first commercial solar cooling system was delivered to a school in Ukraine. The entire school was pre-fabricated in Finland and delivered to Ukraine by Elemenco Oy.

Outside of the cooling period, the solar thermal system produces energy for domestic hot water and space heating needs. During the hot summer time, three adsorption chillers cool the building via the air handling unit. The adsorption chillers, which were delivered by Savosolar, are driven by the solar thermal system.

Issoudun

With a size over 13,000 m2, this system is the second largest solar heating system in France and the second largest solar thermal system for industrial process heating in Europe.  Savosolar has delivered the largest part of the whole solar thermal plant including the solar collector field, civil work, piping and design and delivery of heat exchange station.

Kyotherm and its affiliate Kyotherm Solar are investment companies which specialize in the third-party financing of renewable heat and energy efficiency projects. Kyotherm Solar is selling heat from this system to a malt drying factory, which is operated by Malteries Franco-Suisses.

Customer stories

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 Energy on social media

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2 months ago

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

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: https://summaenergy.com/en/home/  #MeriauraEnergy #IndustrialHeat #Decarbonisation #SustainableIndustry #RenewableHeat #solarthermal #Solarthermalenergy #sustainability #globalimpact #cleanheat #industrialprocessheating #cleaninginplace #greenhouses
2 months ago

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

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: https://summaenergy.com/en/home/  #MeriauraEnergy #IndustrialHeat #Decarbonisation #SustainableIndustry #RenewableHeat #solarthermal #Solarthermalenergy #sustainability #globalimpact #cleanheat #industrialprocessheating #cleaninginplace
3 months ago

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

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: https://summaenergy.com/en/home/customers/greenhouses/  #MeriauraEnergy #IndustrialHeat #Decarbonisation #SustainableIndustry #RenewableHeat #solarthermal #Solarthermalenergy #sustainability #globalimpact #cleanheat #industrialprocessheating #cleaninginplace #greenhouses
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Summa Energy is part of the Summa Defence Group.

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).