Our community network

Our customers are the core of our network, and communicating with them is critical.  We hold information events and local workshops, conduct annual customer satisfaction surveys and publish via twice-yearly newsletters to provide information about services, pricing, connections and tips on how to save energy. 

In 2023, the satisfaction rate amongst Gren customers was high and exceeded external benchmarks in the utility sector in Europe and the world. According to our most recent survey, our customers ranked Gren highly for reliability of supply, invoicing, value for money, customer service, personnel, website and digital interaction, reputation and brand. 

Wick, Scotland

Our network in Wick, Scotland, supports three full-time staff and one part-time staff. Our team includes Harris Gilmore, the current Energy Centre Manager. Harris’s family are from Wick, but moved out of the area before he was born. As a child, he made regular visits to the area and, when studying for his degree in England, he applied for a role working at the energy centre as part of his year in industry.  

After he graduated, Harris returned to Wick as a site technician, worked hard and became an expert. He now runs the entire site and has settled in the area, leading a small team, managing the end-to-end supply chain and acting as the first point of contact for all current and potential customers. 

Tartu, Estonia

Gren owns and operates the district heating (DH) and cooling network in Tartu, Estonia, providing energy to over 2,000 customers.  

The city’s heat network has had long term support from the City Council, and the community, through city planning, DH zoning, and continuing demand for new connections to the network.

The City Council has strongly supported the deployment of DH, mainly through a comprehensive city planning and DH zoning. The networks operated by Gren are considered one of the main enablers of the city’s environmental strategy.

According to EBRD,

“a culture of partnership and innovation has characterised the relationship with the city… This culture will be critical to supporting the city’s recently announced goal of reducing its carbon emissions by 40 per cent by 2030… and of becoming carbon neutral by 2050.”    

Gren has developed bespoke solutions for the National Museum of Estonia and Lõunakeskus, southern Estonia’s biggest shopping mall and entertainment centre. Our network is considered the best-run in the country, with the price of district heating lower than the national average.