EnBW to Launch 100 MW Battery Storage Facility in Marbach to Support Renewable Energy Integration

EnBW to Launch 100 MW Battery Storage Facility in Marbach to Support Renewable Energy Integration

(IN BRIEF) EnBW is set to build a large-scale battery storage facility in Marbach, southern Germany, with a capacity of 100 megawatt-hours and an output of 100 megawatts, enough to power around 12,500 households for one day. The facility will be integrated into the TransnetBW transmission network and will be the largest battery storage project in EnBW’s portfolio. Scheduled for construction in early 2025 and operational by the end of the year, it will use lithium iron phosphate batteries. This project is part of EnBW’s broader strategy to support the transition to renewable energy by providing flexible, dispatchable power and addressing the growing demand for short-term energy storage.

(PRESS RELEASE) MARBACH, 12-Nov-2024 — /EuropaWire/ — EnBW is set to break ground on a groundbreaking large-scale battery storage project in Marbach, southern Germany, with the aim of enhancing energy supply and supporting the transition to renewable power. The facility, scheduled to begin construction in early 2025 and be operational by the end of 2025, will have a capacity of 100 megawatt-hours (MWh) and an output of 100 megawatts (MW) — enough to meet the daily energy needs of around 12,500 households. Rather than serving a single town, the facility will be integrated into the TransnetBW transmission network, becoming a vital part of the southern German electricity grid.

The Marbach battery storage system will be the largest of its kind in EnBW’s generation portfolio to date. This development highlights the company’s continued commitment to battery storage as a key element in the future energy supply. EnBW is already incorporating battery storage as standard in its solar parks, furthering the role of storage in its renewable energy strategy.

Michael Class, Head of Generation Portfolio Development at EnBW, explained the growing importance of energy storage: “As the share of renewable energy sources such as wind and solar increases, it’s essential to store energy and release it when needed. This ensures we can balance the fluctuations in renewable supply with demand on the grid.”

The Marbach battery storage facility will be equipped with lithium iron phosphate (LFP) batteries, which contain no cobalt, making them an environmentally friendly choice. The facility will also be strategically located on the southern part of the existing Marbach power plant site, leveraging synergies with an already established grid connection. This will help optimize efficiency and reduce costs.

Arnim Wauschkuhn, Director of Battery System Solutions at EnBW, outlined the key function of the facility: “Battery storage allows us to store excess electricity when supply is high, and rapidly release it back into the grid when there’s a shortfall. This rapid response capability makes battery storage a crucial complement to other dispatchable energy sources like pumped storage hydro and hydrogen-ready gas plants.”

EnBW’s large-scale battery project comes at an ideal time, according to Wauschkuhn, as battery costs have decreased significantly and there is an increasing demand for flexible, short-term energy storage solutions on the market. The company is also planning additional large-scale battery storage projects as part of its ongoing commitment to strengthening renewable energy infrastructure.

This development in Marbach is a critical step toward a fully renewable energy future, ensuring that wind and solar energy can be paired with dispatchable power, even during times of low generation, such as when there is no wind or sunshine for extended periods. EnBW’s innovative approach to energy storage plays a key role in the company’s ongoing efforts to deliver a sustainable and reliable energy supply for the future.

About EnBW

With a workforce of over 28,000 employees, EnBW is one of the largest energy supply companies in Germany and Europe. It supplies electricity, gas and water together with infrastructure and energy-related products and services to around 5.5 million customers. In the company’s transformation from a traditional energy provider to a sustainable infrastructure group, the expansion of renewable energy sources and of the distribution and transportation grids for electricity and gas are cornerstones of EnBW’s growth strategy and the focus of its investment spending. By 2030, EnBW plans gross investment of 40 billion euros, around 90 percent of which is earmarked for Germany. By the end of 2025, renewables are set to account for more than half of EnBW’s generation portfolio. The aim is to phase out coal by the end of 2028. These are key milestones on the company’s way to achieving climate neutrality by 2035. www.enbw.com

www.enbw.com

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SOURCE: EnBW