Wärtsilä Energy
📍 Helsinki, Finland · Est. 1834Listed · HEL: WRT1V
Overview
Wärtsilä Corporation, founded in 1834 and headquartered in Helsinki, is a Finnish technology company serving the marine and energy markets with about 18,000 employees across 78 countries. Its Energy Storage division delivers containerized BESS (the Quantum product line) and the GEMS digital energy platform, with more than 19 GWh deployed or contracted across 130 sites worldwide. In June 2026 Wärtsilä announced a 50/50 joint venture with RCT Solutions GmbH for its energy storage business, expected to close in Q3 2026.
Products
Wärtsilä Energy offers 9 BESS products across 3 categories: AC Block, DC Block, Plant Controls.
DC Block
Global Presence
Wärtsilä Energy is headquartered in Helsinki, Finland with manufacturing in Finland, United Kingdom, United States, Australia, Singapore, UAE. 10 known facilities worldwide.
Financials & Reports
Wärtsilä Energy is publicly listed (HEL: WRT1V). Key figures from FY2025. Annual report available for download.
Sustainability
Wärtsilä Energy publishes an ESG report covering environmental, social, and governance practices. Rated AAA by MSCI ESG. Key metrics from 2025.
Certifications & Compliance
Wärtsilä Energy holds 3 certifications covering quality management, environmental standards, and safety compliance.
Reference Projects & Case Studies
Selected BESS projects officially disclosed by Wärtsilä Energy. 12 documented projects with case studies available for download.