© 2025 Delta Green
Prague, October 15, 2025 – Europe’s race to unlock household energy flexibility is heating up — and Prague-based Delta Green is emerging as a frontrunner. The energy-tech scale-up, founded in Central Europe, has just secured €2 000 000 in fresh funding from Credo Ventures, Tilia Impact Ventures, and Purple Ventures to accelerate its pan-European expansion. The goal is to turn ordinary European homes into a powerful force on the energy market.
„We are really happy to see that Delta Green's timing for their flexibility aggregation solution was perfect. Just as the market realized the importance of this kind of solution for energy transformation towards greater sustainability, the company already had a real solution in place that the energy companies can instantly use, because it’s been tested on Delta Green’s own retail customers,” says Tilia Impact Ventures partner, Pavel Petřek.
Delta Green’s platform connects ordinary homes into a virtual power battery, enabling households to shift consumption, discharge batteries, and export rooftop solar at times of peak demand. Every kilowatt activated at the right moment lowers bills, supports renewables, and reduces fossil fuel reliance.
"Household flexibility is no longer in a pilot phase — our business growth proves it works across thousands of households, " says Delta Green co-founder Jan Hicl. "We’re now accelerating our plans as market demand is clear, with major retailers across Europe approaching us to deploy our solution.”
By the end of this year, Delta Green platform will manage tens of thousands of households, putting it on track to become Europe’s largest household-based virtual power plant.
“We just closed first deals in Romania, Italy, Hungary and Slovakia and we are in advanced discussions with several major international energy suppliers about adopting our technology,” states Hicl.
Since its last funding update in 2024, Delta Green has made significant strides. It has become the first company in CEE to successfully involve households directly in grid balancing. In the Czech Republic, E.ON, the country’s second-largest energy provider — has integrated Delta Green’s flexibility service into its operations and plans to scale it to thousands of customers within the next 18 months. Thanks to this collaboration, E.ON customers can earn up to €200 per year by monetizing their household energy flexibility. The success has surpassed expectations, prompting E.ON to explore rolling out the solution across additional European markets.
As renewables surge and spot tariffs spread, European suppliers face a critical challenge: how to balance supply and demand in real time. Delta Green’s mission is clear — place households at the very center of Europe’s energy transition and build the continent’s largest network of flexible homes.
Delta Green is a Czech energy company that empowers households to utilize electricity efficiently and responsibly. Beyond energy supply, it offers intelligent, automated solutions for managing electricity consumption and production. Delta Green aims to build the largest household-based virtual power plant in Europe. Originally established in 2008 as Nano Green under the Nano Energies Group, the company rebranded as Delta Green in 2024. It is co-owned by four engineers and developers David Brozik, Prokop Cech, Lukas Benes and Jan Hicl.
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