Solarize, a leading provider of tenant electricity (Mieterstrom) software and developer of a highly automated subledger for decentralized energy supply, adds Future Energy Ventures (FEV) as a new investor. FEV, Europe’s largest energy-tech VC, brings deep market expertise and an extensive international network and will support Solarize in its continued growth.

The focus is on accelerating the platform’s technological development and expanding access to decision-makers and projects across the energy market. Existing investors Picus Capital and Point Nine Capital, as well as participating business angels, reaffirm their confidence in the viability and future prospects of the business model through their renewed investment.

Technology as an enabler: specialized in complex time series

FEV and Solarize share the conviction that our energy system must evolve into a decarbonized, decentralized, and digitally interconnected ecosystem. In this transformation, Solarize’s software-as-a-service acts as a critical link. “Our platform is designed from the ground up to process and bill complex, time-series-based products. This allows us to solve many of the core challenges of the decentralized energy world,” explains Frederik Pfisterer, founder and CEO of Solarize. A modern cloud architecture forms the foundation for mastering this complexity and making energy systems smarter, more efficient, and more sustainable.

Focus on utilities and property owners: the automated subledger for decentralized energy

With more than 200 customers to date, Solarize has established itself as a reliable partner for energy utilities and the real estate sector. The new funding will be used specifically to further optimize the billing solution for the requirements of energy supply companies. Solarize acts as a specialized subledger that efficiently and automatically maps the complex processes of decentralized energy supply. A key priority is seamless integration with various existing general ledger solutions and ERP systems.

“With FEV, we are gaining a partner with deeply rooted energy-market expertise and a broad network,” Pfisterer continues. “Together, we will establish Solarize as the subledger for business models in the decentralized energy world and support our customers in scaling their offerings for mass adoption.”

Moritz Jungmann, Partner at FEV, shares this view: “Solarize impressed us with its technological depth and holistic vision. The transition to a decentralized energy system requires intelligent, open billing solutions with a platform approach. Solarize closes the crucial gap between decentralized generation and professional commercial processing. We believe now is a pivotal moment for investments in digital energy technologies and look forward to supporting the team with our know-how.”

About Solarize Energy Solutions GmbH

with offices in Berlin and Stuttgart, is revolutionizing energy billing with innovative meter-to-cash software. The cloud-based solution enables precise, consumption-accurate billing in an energy world that is increasingly driven by time-series data. Originally developed for tenant electricity (Mieterstrom) in commercial real estate, the solution today supports more than 200 companies across a wide range of use cases—from local power marketing to dynamic tariffs. In doing so, Solarize simplifies complex billing processes and paves the way for innovative business models in the energy sector.

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