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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News and stories 

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

News

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

12.12.24

Gren to install a 20 MW electrode boiler at its biomass CHP plant in Jelgava

05.12.24

The Jelgava Palace is now receiving sustainable district heating

28.10.24

Notice to shareholders, creditors, and employees of Gren Estonia Oy and Gren Holding Company B.V.

23.09.24

Gren acquired energy company Esro in Viljandi, Estonia

31.07.24

Gren acquires Viljandi district heating company ESRO

16.07.24

Gren Klaipėda bottom ash, for the first time in Lithuania, will be used for bike path construction in Klaipėda

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