Top 10 Energy Storage Investors in UK
Updated 15 Jul 2025

PF Nexus recognises the top 10 Energy Storage Investors in UK
Energy storage is crucial to the UK's renewable energy goals as it moves towards a low-carbon economy. Scalable storage options are needed to balance supply and demand as the government aims for 70 GW of solar and a fully decarbonised power grid by 2035. This makes the UK one of Europe's most active and investable energy storage marketplaces for institutional investors and infrastructure funds.
The UK energy storage market is growing rapidly due to intermittent wind and solar power. Battery energy storage systems (BESS) are becoming important for grid flexibility, frequency management, and capacity support. Recent predictions put the UK on track to exceed 30 GW of built storage capacity by 2030. This increasing trajectory is attracting investors seeking long-term, yield-generating energy transition investments.
This article provides a dynamic, data-driven assessment of the top 10 UK energy storage investors. These major firms are investing in grid-scale storage initiatives and creating UK flexible energy infrastructure. As deal volumes rise and project pipelines deepen, developers, advisors, and fellow investors must understand the main investors and where they're focussing their efforts to participate in this fast evolving market.
Top 10 Energy Storage Investors in UK
View the full listENGIE UK
Lightsource BP
Gresham House Asset Management
Caisse des Dépôts et Consignations (CDC)
Vattenfall AB
SSE plc
Ecotricity
Voltalia
BHE Renewables, LLC
Avangrid Renewables (Iberdrola US)
Identifying and sourcing Investors for your Project
Finding investors or buyers for your energy storage projects can be difficult. Investors are often busy with assessing opportunities in their pre-existing developer network, which may make it harder for less well-known projects to break into the market.
Using a renewable energy asset marketplace like PF Nexus provides a more efficient and transparent way of identifying and securing collaborations between energy storage developers and investors. PF Nexus is used by over 6,300 professionals from >3,000 developers, investors, and lenders, constantly on the lookout for 'the right' renewable energy investment opportunities for them.
How does it work? Registering your account and submitting your project takes just 5 minutes. From there, you can receive introductions from interested partners directly to your inbox, eliminating the need for manual outreach and ensuring you connect with the highest calibre, most engaged investors for your deal.
To gain a competitive advantage for your renewable energy portfolio, get started with PF Nexus right now (takes 3 minutes).