# GreenStack > Building Finnish Battery Energy Storage Systems > > GreenStack is a project developer of battery technology-based electricity storage systems. Our first completed and operational project, GS-1, is a 5MW / 10MWh sized project located in the municipality of Loppi. Language: en Available Languages: en, fi Category: Other Verified: yes ## Contact Email: contact@greenstack.fi Website: https://greenstack.fi ## Locations ### Location (primary) Address: FI ## Connect MCP Endpoint: https://coreloop.so/api/mcp/greenstack A2A Endpoint: https://coreloop.so/api/a2a/greenstack CoreLoop Page: https://coreloop.so/greenstack