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.

Under construction
Lübeck, Germany (largest solar thermal plant in Schleswig-Holstein federal state)
Summa Energy has been selected as general contractor to build a 9 MW solar thermal system on behalf of Stadtwerke Lübeck Energie GmbH for its district heating network, which supplies households in the Moisling city district with healthy heating. Only 788 pieces of Savo 16S large scale high performance flat plate collectors are sufficient to getting combined with an 3,000 m³ heat storage tank and produce carbon free heat for the needs of all connected consumers.
Additionally, a PV system will be built on site to generate the electricity consumed by the solar pumps, thus unburdening the local power grid.
The scope of supply includes also all the land works, the construction of a technical building and the supervision system to operate the plant in automatic mode.

Onnelanpolku nursing home, which was built in 2013, is a so-called near zero energy building. To achieve this classification, the building needs to be well insulated and some of the consumed energy needs to be produced locally. A hybrid heating system for DHW and space heating was realized with the combination of solar thermal collectors and district heating.
Savosolar delivered 240 m² of collector area, which is used to cover 20–30% of the total thermal energy need of the building.

FORS A/S is an energy company owned by three Danish municipalities. Their district heating plant in Jyderup has about 900 customers and produces about 5000 MWh solar thermal energy per year. For the rest of its energy production, the plant uses two gas boilers with 7 MW thermal capacity and two gas engines with 6 MW electrical capacity.
In Jyderup, the collector field is a so-called hybrid field, with both single and double glazed collectors. The single glazed collectors are in the cold end of the collector rows and increase the low temperature as rapidly as possible, while the double glazed collectors are located in the warm side of the collector rows where it is more important to reduce the heat losses. The collector field also has double stanchions which allows for two collector rows to connect to one and the same pipe and thereby save costs and thermal losses.
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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