Energy M&A Update June 2026
Battery Energy Storage Systems (BESS) M&A – A structurally expanding energy market
The battery energy storage system (BESS) market is entering a phase of sustained, structural growth. Market size is expected to increase from approximately USD 10.2bn in 2025 to c.USD 102.7bn by 2035, implying a 26.03% CAGR. Storage is becoming an increasingly essential layer of infrastructure, enabling flexibility, balancing supply and demand and supporting renewable integration.
Global deployment continues to accelerate as storage becomes a core system requirement. Across policy scenarios, energy storage capacity is expected to scale rapidly toward 2030, supported by electrification and renewable energy deployment.
In Europe, the market is transitioning from residential-led growth toward utility-scale expansion. Large-scale battery deployments are expected to become the dominant growth engine. At the same time, regulatory fragmentation, grid constraints and permitting delays continue to limit the pace of expansion.
Key takeaways
- BESS market size expected to reach approximately USD 102.7bn by 2035 (26.03% CAGR)
- Storage is becoming a core infrastructure layer of modern energy systems
- Europe is shifting from residential-led demand toward utility-scale deployment
- BESS deal activity remains healthy and is expected to continue growing in line with market growth
- Strategic buyers continue to lead transaction activity
- Sub-CHF 100m transactions remain the dominant deal segment
- EMEA remains the leading region for BESS M&A
- EV/EBITDA multiples have stabilized near long-term median levels
- Larger transactions continue to command valuation premiums
- Consolidation is expected to continue as platforms scale and markets mature
The full report analyzes market structure, M&A dynamics and valuation trends in the global BESS sector.
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