# Return

> Return is Europe's leading independent large-scale battery energy storage provider. We build, own, and operate BESS assets across the Netherlands, Belgium, Germany, and Spain, and offer them as storage-as-a-service to utilities, grid operators, large energy consumers, and energy traders. Tagline: "Making clean energy work for everyone."

Return acts as a neutral infrastructure partner in the European energy transition. Our platform balances grid supply and demand, reduces congestion, and enables higher integration of wind and solar. The company employs 120+ professionals across offices in Amsterdam, Arnhem, Hamburg, Stuttgart, Munich, Madrid, and Brussels. Return is ISO 27001 certified.

The website is available in English (default) and German. Each English page below has a German equivalent under `/de/{path}`.

## Core pages

- [Home](https://return.energy/): Company overview, mission, customer segments, and partner ecosystem.
- [About](https://return.energy/about-us): Company story, leadership team, and team page with LinkedIn profiles of staff across NL, DE, ES, and BE.
- [Locations and projects](https://return.energy/locations): Operational and in-construction BESS sites including Antares (Waddinxveen, NL, 100 MW / 200 MWh), Castor & Pollux (Vlissingen, NL, 60 MW / 120 MWh, operational since Dec 2023), Mufasa (Vlissingen, NL, 364 MW / 1457 MWh), White Horse (Brietlingen, DE, 13 MW / 25 MWh), Star (Terneuzen, NL, 10 MW / 10 MWh, operational since Nov 2021), Sirius (Meeden, NL, 200 MW / 800 MWh), Spica (Meeden, NL, 200 MW / 800 MWh).
- [Solutions](https://return.energy/solutions): Customer-segment offerings for utilities, grid operators, large energy consumers, financials and energy traders, and industrial clients via Return Industrial Solutions (RIS).
- [Return Industrial Solutions](https://return.energy/solutions/return-industrial-solutions): Behind-the-grid BESS solutions for factories, data centers, and logistics with existing grid infrastructure.
- [Impact](https://return.energy/impact): Health, safety, and environmental positioning of large-scale BESS, including responsible sourcing and end-of-life battery reuse and recycling commitments.
- [Partners](https://return.energy/partner): Industry partners including Alfen, Stedin, Essent, Rolls-Royce, Triodos Bank, SPIE, ING, Tesla, TenneT, Vattenfall, and Eneco.
- [News](https://return.energy/news): Press releases and announcements on financing rounds, project milestones, partnerships, and acquisitions.
- [Careers](https://return.energy/careers): Open roles across NL, DE, ES, and BE. External job board at jobs.polymer.co/return.
- [Contact](https://return.energy/contact): Office addresses, phone numbers, and the central inbox info@return.energy.

## Recent news

- [Return strengthens Spain's grid stability with 318 MWh battery storage acquisition](https://return.energy/news/return-strengthens-spains-grid-stability-with-318-mwh-battery-storage-acquisition) (2026-03-03)
- [ENGIE and Return sign landmark 100 MW flexibility agreement in Germany](https://return.energy/news/engie-and-return-sign-landmark-100-megawatt-flexibility-agreement-in-germany) (2026-02-05)
- [Return and Movares sign framework agreement to accelerate grid-enabling battery storage sites](https://return.energy/news/return-and-movares-sign-framework-agreement-to-accelerate-grid-enabling-battery-storage-sites) (2025-12-11)
- [Return secures financing for large-scale BESS in Brietlingen](https://return.energy/news/return-secures-financing-for-large-scale-bess-in-brietlingen-to-strengthen-northern-germanys-grid) (2025-11-20)
- [Return raises EUR 300 million in growth capital from APG](https://return.energy/news/return-raises-eur-300-million-in-growth-capital-from-apg-to-scale-battery-storage-capacity) (2025-10-17)
- [Return partners with BESSMART to grow energy storage in Eastern Germany](https://return.energy/news/2025-09-10-return-partners-with-bessmart-to-grow-energy-storage-in-eastern-germany) (2025-10-09)
- [Return starts construction Antares in Waddinxveen, NL](https://return.energy/news/2025-04-24-return-starts-construction-antares-mega-battery-energy-storage-in-waddinxveen) (2025-04-24)
- [SemperPower rebrands into Return](https://return.energy/news/2025-02-04-semperpower-rebrands-into-return) (2025-04-02)
- [Return redefines energy storage with Mufasa](https://return.energy/news/2025-02-18-return-redefines-energy-storage-with-mufasa) (2025-02-18)

## German versions

- [Startseite](https://return.energy/de)
- [Über uns](https://return.energy/de/about-us)
- [Standorte](https://return.energy/de/locations)
- [Lösungen](https://return.energy/de/solutions)
- [Impact](https://return.energy/de/impact)
- [News](https://return.energy/de/news)
- [Karriere](https://return.energy/de/careers)
- [Kontakt](https://return.energy/de/contact)

## Optional

- [Privacy policy](https://return.energy/legal/privacy-policy)
- [Impressum](https://return.energy/legal/impressum)
- [Coordinated vulnerability disclosure](https://return.energy/legal/cvd)
- [ISO 27001 certificate](https://www.iafcertsearch.org/certification/ztXYx38vcrz8TDWXcLVFUZnT)
- [Job board (external)](https://jobs.polymer.co/return)