IN Brief:
- Northern Europe solar and BESS O&M under RES has passed 3GW, with 4GW total renewables.
- The contracted base includes large utility solar and grid-scale storage asset management.
- Digital monitoring and lifecycle services are being built into O&M to support performance and compliance.
RES has surpassed 3GW of solar and battery energy storage systems (BESS) under operations and maintenance contracts in Northern Europe, lifting the company’s total regional renewables O&M portfolio to 4GW when wind is included.
The Northern Europe footprint spans the UK and Ireland, Germany, Poland, Norway, and Sweden, with solar and storage accounting for the majority of recent growth. Across the region, RES also supports 1GW of wind capacity under O&M agreements.
The company’s contracted exposure to battery storage has expanded in parallel. RES has provided BESS asset management services in the UK since 2018 and is contracted across 18 BESS projects in Northern Europe with a combined installed capacity exceeding 1.5GW, as storage scales to support renewable integration, grid balancing, and constraint management.
Juan Gutiérrez, CEO Services at RES, said: “As solar and storage capacity continues to scale rapidly across Northern Europe, asset owners are increasingly focused on performance, reliability and long-term value. Passing the 3GW milestone for solar and BESS under O&M demonstrates both the strength of our regional portfolio and the trust our customers place in RES to deliver high-quality operational support.”
The expansion has been driven by a mix of new awards, renewals, and larger, more complex assets entering operational phases. In the UK, RES has cited a three-year O&M contract for Cleve Hill Solar Park (373MW), an asset management contract for the 500MW/1GWh Coalburn battery storage facility, and a five-year O&M renewal covering 11 UK solar PV sites (121MW) with The Renewables Infrastructure Group (TRIG).
RES has also positioned digital tools as a core part of the service model. The company launched a digital solutions business in 2024, providing remote monitoring, predictive maintenance, and performance analytics, with the aim of reducing unplanned downtime, supporting compliance, and extending asset life through earlier identification of degradation and operational anomalies.
For asset owners, the O&M market is moving beyond routine inspection and corrective work, particularly for storage-heavy portfolios where warranty management, safety systems, and operational strategy affect both performance and revenue. The increasingly hybrid nature of solar-plus-storage sites is pushing service providers to integrate electrical engineering, control systems understanding, and data-led performance management into standard contracts.
RES said its services approach includes strategic spare parts and repair planning intended to support continuity while reducing cost and carbon impact, as portfolio scale increases and response-time expectations tighten.
