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As Oy Espoon Tammi

Sustainable and cost-efficient energy delivery through strategic collaboration between two leading geothermal actors

As Oy Espoon Tammi – A Sustainable Energy Solution Delivered Through Expert Partnership

Completed in 2022, As Oy Espoon Tammi demonstrates how effective collaboration between two leading geothermal specialists, Voltan Lähienergia and Tom Allen Senera, enables the delivery of sustainable and cost-efficient energy solutions.

A geothermal heating system based on Voltan’s service model was implemented for the housing company, providing environmentally friendly and worry-free heating without significant upfront investment or financial risk.

Voltan selected Tom Allen Senera as its implementation partner following a competitive tender process. Tom Allen Senera was responsible for the technical execution, delivering the system with a high level of professionalism and efficiency. Voltan’s Project Manager, Jussi Kilpelä, has expressed strong satisfaction with the collaboration throughout the project lifecycle.

The approximately 80 kW heating system ensures reliable and energy-efficient performance year-round. Combined with Voltan’s service model, the solution delivers both economic and environmental value.

Voltan’s Service Model – A Predictable, Long-Term Solution

Voltan’s service model is designed to enable a seamless transition to geothermal energy. Voltan assumes full responsibility for the development, financing, and operation of the system. The housing company pays only for the energy consumed, while Voltan covers all operating costs over the contract period, including electricity, maintenance, and equipment upgrades.

This structure provides a clear and predictable cost base, eliminates the need for capital investment, and reduces exposure to energy price volatility.

Since commissioning, Voltan has supplied heating energy to As Oy Espoon Tammi for 24 months with uninterrupted operations. The intelligent building automation system delivered by Tom Allen Senera enables continuous remote monitoring, ensuring optimal system performance.

An Ecologically Responsible Choice

Geothermal heating is a renewable energy solution that significantly reduces the carbon footprint compared to conventional heating systems. As a result, the environmental impact of residential living is materially lowered, making Voltan’s service model both financially compelling and sustainable for future developments.

Collaboration That Delivers Long-Term Value

The partnership between Voltan and Tom Allen Senera highlights how two highly specialised companies can jointly deliver best-in-class outcomes. Tom Allen Senera contributes deep technical expertise as Finland’s market leader in geothermal and heat recovery solutions, while Voltan manages the full service lifecycle, customer interface, and long-term system performance.

Through this collaboration, residents of As Oy Espoon Tammi benefit from efficient, reliable, and environmentally friendly heating—both today and in the future.