Rabot Energy Raises $50 Million to Connect German Homes into a Virtual Power Plant

German energy technology company Rabot Energy has secured $50 million in Series B funding to expand its dynamic electricity tariff business and develop a virtual power plant (VPP) connecting household energy devices across Germany. Announced on 15 October 2026, the funding round was led by European growth investor Endeit alongside the DeepTech & Climate Fonds (DTCF), with participation from existing investors HV Capital, High-Tech Gründerfonds (HTGF), Bosch Ventures, CNI, Acurio Ventures and vent.io.

The investment will support Rabot Energy's ambition to grow from more than 200,000 customers to one million, while expanding its technology platform to manage electricity consumption and storage across residential, commercial and industrial customers. The company aims to connect home batteries, electric vehicle chargers and heat pumps into a coordinated network capable of responding to changes in electricity prices and renewable energy availability.

 

Dynamic Electricity Tariffs Support Flexible Energy Consumption

 

Rabot Energy provides dynamic electricity tariffs that allow customers to benefit from changes in wholesale electricity prices. Its technology helps shift electricity consumption towards periods when power is cheaper and renewable generation is more readily available. By adjusting when electricity is used, households can potentially reduce energy costs while helping balance supply and demand across the electricity system.

In June 2026, the company introduced Rabot Flow, a product combining a dynamic electricity tariff, smart meter and plug-and-play home battery. According to Rabot Energy, the system can reduce household energy costs by approximately 15%. Unlike conventional residential battery installations that are often paired with rooftop solar panels, Rabot Flow can operate without a household solar system. The battery connects through a standard electrical socket, making the technology accessible to renters as well as homeowners. The reported savings represent the company's estimate rather than a guaranteed reduction for every customer.

 

Read more: NVIDIA Partners with Earthshot Prize to Scale Climate and Environmental Solutions Using AI

 

Turning Household Batteries into a Virtual Power Plant

 

Rabot Energy's longer-term strategy involves aggregating connected household batteries into a virtual power plant. Instead of relying entirely on centralised generating facilities, the system would coordinate electricity storage and consumption across thousands of distributed devices. Batteries could charge when renewable electricity is abundant and release stored energy when supply is lower or electricity becomes more expensive.

This approach could help electricity networks accommodate greater volumes of wind and solar generation by shifting demand away from periods of high electricity prices and reducing pressure during peak demand. As heat pumps and electric vehicles become more common, managing when these devices consume electricity will become increasingly important. However, the operational value of a virtual power plant depends on the number of connected devices, their available storage capacity and how effectively their operation can be coordinated. Rabot Energy has not disclosed the total battery capacity currently connected to its proposed VPP network.

 

Customer Growth Provides a Foundation for Expansion

 

Rabot Energy has grown to more than 200,000 customers over approximately three and a half years, including around 15,000 commercial and industrial customers. The company also reports reaching €200 million in revenue, demonstrating the scale of its existing energy supply business. Its next target is to reach one million customers while expanding the number of connected energy devices across Germany.

The funding will support further development of the company's proprietary technology platform and broader integration of household batteries, electric vehicle chargers and heat pumps. Rather than requiring customers to install dedicated generation equipment, Rabot Energy intends to build flexibility around electricity-consuming and storage devices that can already be installed in homes and businesses. The company has not announced a timetable for reaching its one-million-customer target or disclosed how much of the funding will be allocated to individual technology developments.

 

Explore OneStop ESG Marketplace: Grid, utilities & demand management

 

Scaling Distributed Energy Flexibility

 

Jan Rabe, CEO of Rabot Energy, described the company's vision for distributed electricity infrastructure, stating, "The next generation of power plants will not be built; it will be connected." He added that millions of households have the potential to become active participants in the electricity system rather than remaining passive consumers.

The investment reflects growing interest in technologies that make electricity demand more responsive as renewable energy capacity increases. Virtual power plants could help reduce reliance on conventional generation during periods of peak demand, although the scale of those benefits will depend on customer participation, device connectivity and operating performance. For Rabot Energy, the immediate opportunity is to expand its customer network while demonstrating that coordinated household energy management can deliver reliable grid flexibility alongside measurable savings for consumers.