Traunstein/Berlin, August 6, 2026
Long-term power purchase agreement combines photovoltaics and battery storage in a joint marketing model
The expansion of renewable energy is changing the requirements of the electricity market. As the share of solar and wind power increases, flexible marketing concepts are becoming increasingly important. Against this backdrop, MaxSolar and DB Energie have signed the first hybrid PPA for the Friedrichshof project in Mecklenburg-Western Pomerania, combining photovoltaics with so-called green electricity storage. The project is the first in Germany to market an unsubsidized combination of renewable energy assets. While long-term power purchase agreements for individual generation facilities have become an established component of the energy market, the marketing of integrated photovoltaic and battery storage combinations is still in its early stages. Hybrid PPAs combine renewable electricity generation with the flexibility of battery storage. This makes it possible to supply and market electricity in a more demand-oriented manner over time. This is becoming an increasingly important building block for the market integration of renewable energy and the expansion of unsubsidized projects. The Friedrichshof project demonstrates how this approach can be implemented in practice. The ground-mounted photovoltaic plant in the municipality of Klein Belitz, in the Rostock district, has a capacity of approximately 37 megawatt peak (MWp) and is expected to generate around 36,680 megawatt hours of electricity annually. It is complemented by a co-located battery storage system with an output of 15 megawatts and a storage capacity of 30 megawatt hours. The photovoltaic and battery facilities are scheduled to be commissioned in summer 2027. Under the ten-year agreement, MaxSolar will supply the electricity generated, including guarantees of origin, to DB Energie. The supply will be provided as a “Pay-as-Nominated” balancing group delivery, based on the forecast electricity generation for the following day. The battery storage system makes it possible to shift forecast feed-in volumes over time, thereby flexibly adapting the delivery profile to the requirements of the electricity market.
Anwar Darwich, Commercial Director of MaxSolar GmbH, said:
“As the share of renewable energy increases, the requirements for marketing it are changing as well. In the future, it will no longer be electricity generation alone that matters, but also the ability to provide it flexibly. Hybrid PPAs are a key component of a NextGen IPP business model. The Friedrichshof project demonstrates how photovoltaics and battery storage can be successfully marketed as an integrated asset combination even without subsidies, thereby paving the way for a new generation of renewable energy projects.”
Florian Reuter, Managing Director of DB Energie, added:
“Long-term power purchase agreements are an important component of our procurement strategy. They provide planning certainty and help us to continuously increase the share of renewable energy in our traction power portfolio. As the share of variable electricity generation grows, we must consistently find new ways to ensure a demand-driven electricity supply. The Friedrichshof project demonstrates how new marketing models can unlock additional potential for a reliable supply of electricity from renewable energy sources.”
For MaxSolar, the project is also part of a long-term corporate strategy. The company aims to consistently develop and market future photovoltaic projects as integrated combinations of renewable electricity generation and battery storage. As renewable energy becomes increasingly integrated into the market, such concepts are gaining importance because they combine flexibility, economic viability and security of supply. The Friedrichshof project underscores this development and demonstrates how new marketing models can support the further expansion of renewable energy.
About MaxSolar GmbH:
As an integrated infrastructure developer and operator, we cover the entire value chain of the new energy economy. Through renewable energy, flexible storage solutions, and regional heating and mobility concepts, we strengthen the resilience of energy supply and the competitiveness of industrial and technology companies, as well as municipalities.
MaxSolar also offers Power Purchase Agreements (PPAs) to provide a long-term, predictable supply of green electricity. With a project pipeline of 6.1 gigawatts and six locations across Germany, MaxSolar operates both regionally and nationally.
www.maxsolar.com
About DB Energie:
DB Energie makes an important contribution to Deutsche Bahn’s energy transition through the development and provision of energy infrastructure. The Deutsche Bahn subsidiary, headquartered in Frankfurt am Main, provides railway undertakings in Germany with a reliable and cost-effective energy supply. As a grid operator, DB Energie manages the more than 7,900-kilometre 16.7 Hz traction power network, closed 50 Hz distribution networks, and the direct-current power supply systems of the Berlin and Hamburg S-Bahn networks. More than 50 power plants, converter stations and frequency converter stations located throughout Germany supply the energy, while over 1,800 transformer stations ensure the correct voltage. DB already covers 71.6 percent of its traction power demand with renewable energy. By 2038, all DB traction power is to be sourced entirely from renewable energy.
www.dbenergie.de
Press contact MaxSolar
Franziska Strasser
PR & Content Specialist
Tel: +49 (0)151 43179515
E-Mail: franziska.strasser(at)maxsolar.de
Press contact DB Energie
Miram Müller
Pressesprecherin der DB Energie
Tel: +49 (0)30 297 61030
E-Mail: presse(at)deutschebahn.com
