IN Brief:
- Power Electronics has reached 11 GW AC of installed capacity across the UK energy market.
- The company’s UK base covers solar and storage inverter systems, including large-scale BESS and hybrid solar-plus-storage applications.
- Power conversion technology is becoming more critical as storage, data centres, and grid-support functions place higher demands on inverter performance.
Power Electronics has reached 11 GW AC of installed capacity in the UK, reflecting more than 15 years of activity across the country’s solar and energy storage markets.
The company’s UK presence began with early utility-scale solar projects and has since expanded into battery energy storage systems, hybrid solar-plus-storage schemes, and infrastructure applications where power conversion reliability is central to project performance.
Power Electronics says its first UK solar plant, commissioned in 2011, remains in operation. Its more recent UK storage work includes a 2025 project involving 145 PCSK battery inverters for the first phase of a major BESS site.
The company supports its UK installed base through a local service organisation of more than 60 professionals. That service model is designed to provide response capability, knowledge of local grid conditions, and continuity across assets expected to operate for 15 to 20 years.
Its current UK product focus includes the PCSM battery inverter, which offers power ratings of up to 5,360 kVA in an integrated medium-voltage architecture, alongside the HEM solar inverter and Freesun DC/DC converter for hybrid solar-plus-storage systems.
The role of inverters is changing across the electricity system. In earlier phases of solar deployment, inverter selection was often viewed primarily through conversion efficiency, cost, and warranty. Storage growth has widened that calculation. Battery inverters now sit at the interface between asset revenue, grid compliance, system response, and operational availability.
The rise of large-scale BESS has increased the importance of medium-voltage integration, thermal management, grid-code compliance, response speed, service access, and long-term component support. Storage sites operate under more varied duty cycles than solar-only plants, moving between charging, discharging, standby, frequency response, and other grid services. That places different stresses on power conversion equipment and makes service capability more central to lifetime performance.
Data centres are adding another layer of demand. The UK’s expanding data infrastructure pipeline requires high availability, predictable power quality, and resilient grid connections, often in areas where network capacity is already under pressure. Power conversion systems that can support storage, back-up, peak shaving, and grid interaction are becoming more closely tied to the design of high-demand sites.
The wider UK electricity system is also moving towards more inverter-based generation and storage. That brings flexibility, while also changing system behaviour. Network operators and asset owners are placing greater emphasis on fault ride-through, reactive power control, grid-forming capability, and communications between power electronics and control platforms. The inverter is increasingly part of the operational architecture of the power system.
Power Electronics’ 11 GW AC milestone reflects both installed volume and a broader market transition. Solar and storage deployment are now inseparable from questions of grid stability, serviceability, and long-term asset operation. As the UK adds more renewables, storage, and large electrical loads, the quality and availability of power conversion technology will remain a decisive factor in how reliably those assets perform.