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Wärtsilä Energy

AC Block DC Block Plant Controls

📍 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.

At a Glance
EUR 694M
Revenue
17,900
Employees
AAA
MSCI ESG Rating

Products

Wärtsilä Energy offers 9 BESS products across 3 categories: AC Block, DC Block, Plant Controls.

AC Block illustration AC Block
Quantum3
Datasheet
Quantum High Energy
Datasheet
DC Block illustration DC Block
Quantum2
Datasheet
Plant Controls illustration Plant Controls
GEMS BMS
Datasheet
GEMS PPC
Datasheet
GEMS Grid Command
Datasheet
GEMS Cloud Connect
Datasheet
GEMS Pulse
Datasheet
GEMS Bidcast
Datasheet

Global Presence

Wärtsilä Energy is headquartered in Helsinki, Finland with manufacturing in Finland, United Kingdom, United States, Australia, Singapore, UAE. 10 known facilities worldwide.

HQ
Facilities
HQ
Helsinki, Finland

Financials & Reports

Wärtsilä Energy is publicly listed (HEL: WRT1V). Key figures from FY2025. Annual report available for download.

Key Figures
EUR 694M
Revenue
EUR 23M op. result
Net Income
3.3% op. margin
Gross Margin
EUR 296M (group)
R&D Spending
17,900
Employees
Source: Wärtsilä Financial Statements Bulletin Jan–Dec 2025. Revenue and operating result are for the Energy Storage segment only (~480 employees), which became an independent reporting segment from Q2 2025. Group net sales EUR 6,914M (+7%), group EBIT EUR 833M (12.1% margin), group employees 17,900. R&D spending EUR 296M is group-wide. Storage segment order book EUR 719M. In June 2026 Wärtsilä announced a 50/50 JV with RCT Solutions for the storage business, closing expected Q3 2026.
Annual Report2025 · PDF Annual Report2024 · PDFAnnual Report2023 · PDF
Stock Price Performance

Sustainability

Wärtsilä Energy publishes an ESG report covering environmental, social, and governance practices. Rated AAA by MSCI ESG. Key metrics from 2025.

ESG Key Figures
AAA
MSCI ESG Rating
46,808 tCO2e S1+S2
GHG Intensity
0
Work-Related Deaths
79%
Renewable Electricity
Source: Wärtsilä Annual Report 2025, sustainability statement (Wärtsilä reports sustainability inside its annual report, so the ESG and annual report links point to the same document). Gross Scope 1 was 40,848 tCO2e in 2025 against 37,066 in 2024, an increase of 10 per cent. Market-based Scope 2 fell 53 per cent to 5,960 tCO2e from 12,771; location-based Scope 2 was 18,127 tCO2e against 19,849. The combined Scope 1 and market-based Scope 2 figure of 46,808 tCO2e is derived by addition. Total GHG emissions including Scope 3 were 112,133,508 tCO2e market-based, down 3 per cent, dominated by use of sold products. Renewable electricity was 79 per cent of total electricity consumption, or 68,400 MWh, from self-generated solar and energy attribute certificates. There were zero work-related fatalities among both own employees and other workers on Wärtsilä premises in 2025, and 68 Wärtsilä companies covering about 91 per cent of the workforce operate a certified ISO 45001 system. External ratings: MSCI AAA, CDP Climate B, ISS ESG C+ Prime, Sustainalytics 24 (top 5 per cent), DJSI 62 (top 5 per cent), EcoVadis 74 Silver. Target of carbon neutral own operations by 2030.
ESG Report2025 · PDF ESG Report2024 · PDF

Certifications & Compliance

Wärtsilä Energy holds 3 certifications covering quality management, environmental standards, and safety compliance.

ISO 9001
ISO 14001
ISO 45001

Reference Projects & Case Studies

Selected BESS projects officially disclosed by Wärtsilä Energy. 12 documented projects with case studies available for download.

Datasheet
Wärtsilä Energy · PDF
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