Energy storage

 

Your trusted partner in energy storage, combining proven reliability with future-ready innovation

Wärtsilä Energy Storage is driving the transition to a 100% renewable energy future. We combine time-tested technology with deep grid expertise, helping customers and the energy sector accelerate global decarbonisation.

Our utility-scale energy storage seamlessly integrates with critical energy systems, driving revenue with optimised assets and delivering proven reliability, flexibility, and safety. We have deployed or contracted over 17 GWh of energy storage across more than 130 sites worldwide.

 

 

Tech workers in the field

Unlock the full value of your energy storage investment

Backed by Wärtsilä's reputation as a bankable and reliable partner, our comprehensive system-level approach to battery energy storage technologies stands apart. We leverage our advanced hardware, intelligent optimisation, and operational expertise to maximise the longevity of your assets and the value of your overall investment.

Our proudest numbers

17+

GWh of energy storage capacity globally

130+

projects

24/7

remote operational support

A fully integrated energy storage solution

energy storage in europe
Engineered for performance. Proven in the field.​

Explore our projects

Latest articles

Insights article_Recirect_Energy Storage_Utility Dive
9 Jun 2025 · Article
5 min read
“How much energy do I really have?” — The question costing storage owners millions
Every megawatt-hour matters. Grid demand spikes, prices surge,...
Insights article_Redirect_Energy Storage_Energy Intelligence
9 Jun 2025 · Article
5 min read
Europe’s Blackout Warning: Batteries Aren’t Optional Anymore
The recent large-scale power outage that swept across Spain, Portugal and parts of...
Wärtsilä Energy Storage.
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