The swb Erzeugung-AEG Power Combining Battery Energy Storage and Power-to-Heat Project is a 20,000kW energy storage project located in Bremen, Germany.

The project was announced in 2018 and will be commissioned in 2021.


The Swb Erzeugung-AEG Power Combining Battery Energy Storage and Power-to-Heat Project is being developed by AEG Power Solutions . The project is owned by (100%).

The key applications of the project are frequency regulation and grid support services.

Contractors involved

is the owner. AEG Power Solutions is the developer.

Additional information

The facility has an installed capacity of 20 MW allowing it to deliver 15 MW of primary frequency control power. In this hybrid system, energy is stored both in a battery system and an electrical heating system which are connected to the power converter. These are controlled as one unit to provide the required bidirectional power flow (to or from the grid) to balance the frequency and ultimately to ensure the stabilization of the grid. AEG Power Solutions designed this unique concept based on its power electronic expertise. The patent is currently under review. The company has engineered the complete solution and will provide swb with 24 storage converters integrated in ISO-metal sheet containers together with an hybrid storage option, low-voltage distribution cabinets, auxiliary power supply as well as medium voltage transformers and the heating system in separate enclosures.

About AEG Power Solutions

AEG Power Solutions BV (AEG Power), a subsidiary of 3W Power S.A., designs and develops power electronic systems and solutions for industrial power supplies and renewable energy applications. The company’s products portfolio includes 1-phase UPS systems, 3-phase UPS systems, UPS accessories, UPS software, rectifiers and chargers, industrial inverters, solar inverters and DC power systems. AEG Power also provides services which include planning, installation, maintenance, analytical services, battery services, repair and upgrades and product replacement services. The company serves manufacturing, oil and gas, power generation, photovoltaic, IT and telecommunication, transportation, storage and distribution, and smart grid industries. It has operations in the Middle East, Asia and Europe. AEG Power is headquartered in Zwanenburg, the Netherlands.


All publicly-announced energy storage projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects are sourced through secondary information sources such as country specific power players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.