Return, an energy transition investment and development platform, has acquired a majority stake in J&P Batterie Projekte, an energy storage system developer, through a €50 million (~$56 million) investment and commitment. Return and J&P are expected to develop, finance, own, and operate a portfolio of projects, leveraging the experience of Return, which currently operates 70 MW (150 MWh) of operational assets and 450 MW (1,700 MWh) of ready-to-build projects.