- Green Fusion successfully completes Series A funding round of €12 million, led by XAnge and HV Capital.
- Goal for 2025: Optimization of heating systems in over 3,000 multi-family buildings (300% growth).
- Founder Paul Hock: “The heating transition doesn’t need mandatory renovations, but intelligence. With smart heating optimization, we can immediately reduce CO₂ emissions and energy consumption.”
Green Fusion, a pioneer in the digitization and optimization of heating systems in multi-family buildings, has completed a €12 million Series A funding round, led by HV Capital and XAnge. All existing VC investors, including BitStone Capital, Übermorgen Ventures, kopa ventures, Vireo Ventures, and Brandenburg Kapital, also participated in the round.
Accelerating the Heating Transition in the Housing Sector
Green Fusion’s software solution continuously monitors heating systems in real-time, immediately identifying energy-saving potential and using AI to significantly reduce heating costs and CO₂ emissions. On average, heating costs are reduced by 16%. For a housing company with 100 heating systems, this translates into annual savings of over €233,000 after deducting installation and software costs.
"The combination of artificial intelligence, real-time data analysis, and clear customer benefits has made Green Fusion a market leader in a very short time. We are convinced that this company will set the international standard for heating monitoring and optimization. It perfectly balances economic scalability with sustainable impact. Green Fusion has the ability to drive the heating transition across Europe," says Valerie Bures, Managing Director & Partner at XAnge.
Major housing companies and cooperatives such as Gewobag, Rheinwohnungsbau, and Spar- und Bauverein Dortmund are already using Green Fusion’s technology. In total, the company serves 100 clients managing over 800,000 rental apartments.
Strategic Use of Funding: Scaling and Expansion
With the new funding, Green Fusion is focusing entirely on scaling and expansion. The capital will be directly invested in installation, sales, product development, and customer support to take the company to the next level. Additionally, Green Fusion is dedicating a special unit to the smart management of renewable energy systems.
Goal: By 2025, 3,000 multi-family buildings will be equipped with the software, representing 300% growth. At the same time, Green Fusion will expand its presence beyond Austria and Italy into France and the Benelux region through pilot projects, paving the way for European expansion.
"Green Fusion is the game changer the industry needs to meet the challenge of decarbonizing the heating sector. We are confident that the company has the potential to become the market leader not just in Germany," says David Kuczek, General Partner at HV Capital.
Political Pressure to Act – Green Fusion Provides the Solution
The German government has set the ambitious goal of achieving climate neutrality by 2045, while CO₂ prices continue to rise. These policies are putting enormous pressure on the housing sector. However, while comprehensive building renovations require massive investments, optimizing energy consumption is the only immediate step to significantly reduce heating costs and CO₂ emissions.
Green Fusion offers a cost-effective and quickly implementable solution: the costs for software and installation are always significantly lower than the savings achieved through optimization. This provides housing companies with much-needed financial flexibility while allowing tenants to benefit from lower heating costs.
"Almost no heating system in Germany operates optimally, with 80% still running on their original factory settings. This leads to wasted costs and CO₂ emissions, even though minor adjustments could have a major impact. With our solution, we can make heating systems more efficient from day one and, most importantly, prepare them for the transition to heat pumps," explains Paul Hock, Founder and CEO of Green Fusion.
Market Leader in Heating Monitoring and Optimization
According to a recent survey by the industry association GdW, Green Fusion has become the market leader in heating monitoring and optimization within just three years of its founding. Axel Gedaschko, President of GdW, states:
"Optimizing energy consumption is a crucial first step towards climate goals—before installing heat pumps, switching to district heating, or implementing other energy-saving measures. Only by taking cost-effective and smart approaches can housing companies in Germany ensure long-term affordable housing."
