Energy storage

 

We're 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 over 18 GWh of energy storage deployed or contracted across 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.

Your trusted partner in energy storage

19+

GWh of energy storage capacity globally

130+

projects

24/7

remote operational support

A fully integrated energy storage solution

Engineer in the field

Software

Maximise revenue and reduce risk with intelligent control, real-time data, & automated optimisation across the system.​

Learn more »

Hardware

Deliver more capacity with less footprint through compact designs, streamlined logistics, & industry-leading safety.

Learn more »

Engineers in the field

Lifecycle Services

Protect long-term value with full-system support designed to optimise performance, ensure reliability, & accelerate ROI.​

Learn more »

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

Explore our projects

Latest articles

23 Dec 2025 · Article
5 min read
2026 energy storage outlook and opportunities
22 Dec 2025 · Article
3 min read
The heartbeat of our societies
Transitioning towards a clean energy future
4 Nov 2025 · Article
47 min read
Interchange Recharged Podcast: Can energy storage save the grid?
with Wood Mackenzie
Wärtsilä Energy Storage. Let's connect.
LinkedIn logo