Hamburg-based 1KOMMA5°, an energy solutions provider focused on solar power, energy storage, and e-mobility solutions, has expanded its €150M pre-IPO financing round, which was completed in December 2024.

Sabanci Climate Ventures, the ClimateTech investment arm of the Turkish Sabanci Group, joins as a new investor.

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The additional capital will help grow and expand Heartbeat AI, 1KOMMA5°’s energy management software and virtual power plant.

This will allow millions of households in Europe and Australia to switch from fossil fuels to cheaper, cleaner electricity.

The German cleantech unicorn claims to have continuously increased its revenue and remains profitable in its core hardware solutions business, even in times of recession and a declining market for solar and heat pumps across Europe.

At the same time, the company has invested significantly in Heartbeat AI and its virtual power plant to increase software revenue.

From 2025 to 2027, the company plans to invest over €100M in expanding its software business around Heartbeat AI.

The energy management software currently controls over 500 megawatts of flexibility capacity, making it the largest integrated virtual power plant (VPP) for residential buildings in Europe.

To date, 1KOMMA5° has raised nearly €400M in equity and remains debt-free. Existing investors include Hamilton Lane, CalSTRS, G2VP, Porsche Ventures, Eurazeo, b2venture, eCapital, 2150vc, Norrsken, Blue Elephant Ventures, the family offices Haniel and Schürfeld, and Jan Klatten.

1KOMMA5°: Operates an energy software platform

1KOMMA5° was founded in 2021 by Jannik Schall, Micha Grueber, Michael Hinderer, Philip Liesenfeld, Philipp Schröder.

The startup aims to be the one-stop shop for sale, installation, and services related to solar, electricity storage, and charging infrastructure in Europe.

1KOMMA5° invests in top companies operating in the electrical sector, specifically focusing on photovoltaic systems, charging infrastructure, and heat pumps.

In exchange, the German company offers entrepreneurs access to their software solutions, centralised services, bundled purchasing, growth capital, and a reverse shareholding in 1KOMMA5° Holding.

The German company aims to convert 500,000 buildings per year to climate-neutral power generation, heat, and mobility.

1KOMMA5° currently operates 80 locations with around 2,400 employees in Germany, Sweden, Finland, Denmark, Spain, the Netherlands, and Australia.

By 2030, the company aims to convert more than 1.5 million buildings to climate-friendly energy supplies, thus contributing to achieving the Paris climate goals

Philipp Schröder, CEO and co-founder of 1KOMMA5°, says, “We are delighted to have the support of another strong, long-term investor who will accompany us on our path to market leadership in the mega-market of home electrification. Despite two years of recession in Germany and regulatory challenges, we are growing profitably. With Heartbeat AI, we now want to become the ultimate energy solution customers need in their lives, replacing conventional energy suppliers with automated, AI-based direct electricity procurement. This way, we will always deliver the cheapest and cleanest electricity – for decades to come!”