Our services 

We create and deliver clean energy services that help people live comfortably, happily, and sustainably, throughout the seasons.  

Serving homes, offices and industries

Our leading-edge energy solutions are benefiting businesses, people, places and the planet. We bring you clean, cost-effective energy you can count on.

Industrial energy services

Collaborating with you as close partners, our people’s leading-edge expertise guides you to custom solutions that strike a balance. Finance, technology, availability, security – we solve it all, together. Estonia | Finland | Latvia | Lithuania | Sweden | United Kingdom

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District heating

We believe district heating is a key solution for driving decarbonisation. The safest, most environmentally friendly heating solution for cities and district areas, it ensures efficiency and improves air quality.

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District cooling

An efficient solution for cities and district areas, district cooling helps create a comfortable indoor climate. An example? We can use river water as a natural coolant, piping it through a building’s cooling system.

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Gren’s portfolio

Gren’s reach is growing – our businesses are located in Estonia, Finland, Latvia, Lithuania, Sweden and the United Kingdom.

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Fuel mix (2024):

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ca 95%

renewables (biomass, waste) Icon of green energy
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ca 5 %

non-renewables (waste, gas) Icon of flame

News and stories 

Here’s how we’re accelerating the energy transition.

News

28.05.25

Gren Acquires the District Heating Network of Kohtla-Järve’s Sompa Subdistrict, in Estonia

27.05.25

Gren ESG report 2024: bold steps in decarbonization and affordable, clean energy

26.03.25

Gren launches its annual Customer Satisfaction Survey

05.03.25

Gren to construct a 50 MW biomass boiler plant for Riga’s district heating

14.02.25

Gren has increased efficiency of the Gren Rīga combined heat and power plant by installing a 1.69 MW heat pump

21.01.25

Gren Expands District Heating Network: 3 km of New Heat Pipeline Built in Raadi, Tartu Parish

03.01.25

Gren Holding Company B.V. has merged into Gren Estonia Oy, now operating under the new name Gren Oy

23.12.24

A Message from CEO, Ilkka Niiranen: Reflecting on 2024 and Looking Ahead to 2025

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