Everyone benefits from our energy solutions
We provide geothermal solutions for developers, housing associations, real estate investors,
and government-funded housing developments. We are technology and vendor-neutral,
which allows us to design solutions that are always tailor-made and optimized. This
brings technical and financial benefits to everyone from developers
to residents and aligns with our sustainability goals.

Free consultation
We're happy to discuss your needs and calculate the benefits for the housing association, the environment, and the developer/real estate investor. Get free consultation
Tailored
We don't depend on a single technology or supplier, which means we can tailor the optimal solution for each project, from both a technical and financial point of view.
Holistic
We are responsible for the energy solution holistically, from planning to implementation and subsequent maintenance. At the same time, we are building a sustainable future together.
Developers
We handle the planning of the geothermal heating systems for residential buildings and terraced houses, starting from pre-marketing all the way to maintaining the implemented energy system. We also cover all related investments.

Benefits
- Heating is available already for the construction phase, which means convenience from the start
- A centralized provider for all heating-related matters. This frees up the developer’s time for other priorities
- The housing company has a long-term heating provider once construction is finalized
- A cost-effective and convenient way to reach sustainability goals
- The developer doesn’t need to invest in heating systems, resulting in an immediate positive net impact for costs
- Decreases direct heat emissions significantly compared to competing heating solutions and generates more interest among buyers and faster sales
- A cost-effective way to cool apartments which increases the value of the apartments and living standards
Residents and new apartment buyers
Benefits
- Costs less than the most common heating solutions
- Significantly fewer direct emissions than in competing heating solutions
- Ground-source cooling enables pleasant living conditions without additional air pumps
A low-emission home is the most significant way an individual can decrease their personal greenhouse emissions. Geothermal heating is a sustainable choice that creates value both immediately and in the long term.

Ground-source heating also meets the growing cooling needs
Thanks to ground-source heating, apartments can be cooled cost-efficiently. This makes for cozier and higher-value apartments.

Housing companies
Voltan covers the investment costs and all operating costs related to geothermal heating (including electricity, maintenance costs and equipment renewal during the contract period)
The housing company pays only for the energy used, similar to district heating contracts
In addition to cheaper energy, the housing company benefits from Voltan's remote monitoring and operations, which ensures continuous operation and high efficiency of the system
Benefits
- Costs less than the most common heating solutions
- The housing company does not have to tie up capital in the geothermal system
- Voltan's solution does not cause new heavy financing costs for the housing company
- Direct emissions are up to 100% lower than in competing heating methods
- Cooling enables comfortable living throughout the year without separate air source heat pump outdoor units

Real estate investors
We enable low-emission and cost controlled real estate investment portfolios. We help investors with leading-edge heating solutions for their new housing developments as well as in the conversion of their existing portfolios.
Benefits
- Thanks to our experience with contractors from designing to implementing ground-source heating solutions, investors get the solution they want for new housing developments without hesitation from the construction company
- Significantly fewer direct emissions than in competing heating solutions, which increases investors' portfolio and brand value
- Cost-effective and secure pricing
- Access to centrally managed heating facilities means less production and maintenance costs
- Thanks to our vast experience with contractors, implementation is smooth

Public properties
We enable municipalities to maintain a low-emission and cost-controlled real estate portfolio. We support municipalities in implementing geothermal heating solutions for new buildings as well as converting existing portfolios.
Benefits
- Cost-effective and secure pricing – zero risk of uncontrolled price increases
- Vast experience in designing and implementing geothermal heating solutions
- Direct emissions from heating are significantly reduced compared to competing heating methods, increasing the sustainability and value of the portfolio
- More efficient energy production and maintenance of plants through the optimized co-management of our thermal plants
Government-funded housing development
Benefits
- Decrease lifetime emissions by up to 40%
- Decreased heating costs and emissions
- Get an experienced partner with a solid track record of working with contractors from design to implementation
Government funding sets specific stipulations for energy solutions. We design and finance geothermal heating for government-funded housing to make construction sustainable and cost-effective. This benefits residents, owners, and society as a whole.


Corporations
We enable corporations to maintain a low-emission and cost-controlled real estate portfolio (e.g. logistics centres and other business premises). We support corporations in implementing geothermal heating solutions for new properties as well as converting existing portfolios.
Benefits
- Cost-effective and secure pricing
- Vast experience in designing and implementing geothermal heating solutions
- Direct emissions from heating are significantly reduced compared to competing heating methods, increasing the sustainability and value of the portfolio
- More efficient energy production and maintenance of plants through the optimized co-management of our thermal plants