Technical O&M services for wind,
solar and BESS assets

Customised operation and maintenance services for renewable energy technologies

GES provides customised operation and maintenance (O&M) services for all types of renewable energy assets. Our technical approach is designed to maximise system availability, performance and reliability through bespoke strategies adapted to each client, asset and technology.

Drawing on our expertise in wind farms, solar PV plants and battery energy storage systems (BESS), we deliver bespoke O&M plans that are tailored to each project’s technical requirements and performance objectives. We work closely with leading wind turbine manufacturers and asset owners, leveraging certified teams and data-driven systems to ensure high traceability, operational efficiency, and asset longevity.

Wind Energy O&M

With a portfolio of over 4.6 GW, GES is a leading provider of wind O&M services in Spain and across Europe. We deliver comprehensive operation strategies and both preventive and corrective maintenance plans for turbines from multiple manufacturers, with technicians certified in various technologies.

Our comprehensive range of services includes bolt checks and replacements, lubrication and oil changes, blade maintenance, major component repairs, repowering and revamping. We seamlessly integrate digital tools with client systems, enhancing task efficiency, data traceability, and response times.

Solar PV O&M

GES’s portfolio comprises over 1.25 GWp of solar PV assets, with a focus on maintaining high availability and energy performance ratios (PR). Our teams carry out predictive, preventive and corrective maintenance, including thermographic inspections, O&M quality management, and advanced 24/7 remote monitoring.

Our data-centric approach enables cost-efficient field operations and predictive failure detection using advanced asset monitoring technologies, ensuring optimal performance across solar plants.

O&M for Grid Interconnection Infrastructure

We offer comprehensive O&M services for electrical infrastructure connected to renewable assets, encompassing medium- and high-voltage substations and transmission lines. Our specialised technicians perform tailored maintenance plans, including insulation testing, thermographic inspections and functional reviews. These services are supported by a 24/7 technical assistance service.

O&M services for BESS

GES delivers specialised O&M services for Battery Energy Storage Systems (BESS), whether as standalone installations or as part of hybrid plants. Our certified personnel are responsible for the operation and maintenance of key systems, including BMS, HVAC (aerothermal), fire protection (PCI), PCS and EMS.

This comprehensive service ensures reliable BESS operation, while optimising both performance and lifecycle of the energy storage infrastructure.

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