Renewables Service & Maintenance

Keep your low-carbon systems safe, efficient, and compliant. We provide planned servicing, rapid repairs, and ongoing optimisation for homes and businesses across the North East. From annual health checks to portfolio-wide maintenance contracts, our engineers protect performance, reduce downtime, and extend the life of your investment.

What We Cover

Solar & Battery – PV arrays, inverters, isolators, monitoring portals, battery systems, immersion/diverter devices.

C&I Storage – cabinet and containerised BESS, EMS, switchgear, fire detection/suppression, HVAC, networking.

Heat Pumps – air-source and ground-source units, cylinders/buffers, controls, antifreeze/glycol loops.

EV Charging – domestic and commercial charge points, back-office/OCPP, load management and safety devices.

Frequently Asked Questions

Got questions about going green?

We know that switching to renewable energy can feel like a big step, so we’ve answered some of the most common questions we hear from customers. Whether you’re looking into solar panels, EV chargers, heat pumps or battery storage, you'll find helpful info right here.

Still got questions? Why not contact us to learn more.
CloseCooper Renewables made everything so easy—from install to aftercare. Would recommend to anyone switching to solar.
Sarah T, Bishop Auckland

It’s a scalable energy system for commercial and industrial sites that stores electricity for later use — reducing peak demand charges, providing backup power, and helping you optimise against time-of-use tariffs.

By charging off-peak (cheap) and discharging at peak (expensive), shaving demand spikes, and capturing surplus on-site generation (e.g., solar) instead of exporting it at low rates.

Yes. Systems can be AC-coupled, DC-coupled, or hybrid to work with existing PV arrays and to support EV charging bays, even during site peaks.

Sizing depends on your load profile, tariff structure, peak demand, and any backup requirement. We analyse interval data (e.g., half-hourly) to recommend power (kW) and energy (kWh) that deliver the best return.

If specified with backup/EPS or microgrid capability, the system can keep priority loads running and switch over rapidly to minimise disruption.

That depends on the hardware and configuration. Many commercial systems can switch in milliseconds for protected circuits; we’ll confirm based on your critical loads.

C&I storage includes multi-level protections (cell/module/cabinet), thermal management, fire detection/suppression options, and remote diagnostics. Installations adhere to relevant UK standards and DNO requirements.

Cabinets suit plant rooms and internal spaces; containerised units work well in yards or depots. We’ll assess ventilation, access, clearances, and environmental conditions.

 

Need your renewable energy system serviced?

Solar & Battery Maintenance & Cleaning

Maximise generation and storage with proactive care.

  • Visual inspection of modules, mounting, cabling, MC4s and earthing; check for shading, soiling and water ingress.

  • Electrical tests: DC insulation resistance, string Voc/Isc checks, AC supply verification, surge/isolator condition.

  • Inverter diagnostics: error logs, firmware updates, cooling pathways, fan/heat-sink cleaning.

  • Battery health: state-of-health/state-of-charge checks, cell balance review, capacity verification, thermal management.

  • Monitoring & optimisation: portal set-up, alerts, tariff-based charge/discharge scheduling, export-limit checks.

  • Optional: panel cleaning, I-V curve tracing with report, performance ratio review.

C&I Storage (Commercial & Industrial)

Safety, reliability, and uptime for critical operations.

  • BMS/EMS health checks, cell and rack balance, contactor/relay operation, DC bus inspection and torque checks.

  • Functional tests: charge/discharge, peak-shaving limits, backup/microgrid switchover, black-start where applicable.

  • Thermal management: HVAC/filter service, coolant (if liquid-cooled) inspection, cabinet pressurisation checks.

  • Safety systems: fire detection/suppression inspection, gas/smoke pathways, alarms and interlocks.

  • Electrical: switchgear, fusing, earth bonding, cable terminations; infrared thermography on busbars and terminations.

  • Compliance & records: maintenance logs, event reports, and grid standard checks (e.g., G98/G99 where relevant).

    Heat Pump Servicing

    Efficient, quiet, and reliable low-carbon heating.

    • Performance checks: flow/return temperatures, refrigerant pressures, COP benchmarking, controller optimisation.

    • Mechanical: fan and coil clean, condensate management, pump flow rates, filters/strainers, valve operation.

    • System fluids: glycol concentration and inhibitor testing, top-ups, descaling where necessary.

    • Controls & firmware updates, weather-compensation tuning, hot-water schedules and legionella pasteurisation cycles.

    • F-Gas leak checks by certified engineers (where applicable) with full service documentation.

    EV Charger Maintenance

    Safe, dependable charging for staff, fleet and visitors.

    • Electrical tests: RCD/RCBO operation, earth loop impedance, insulation resistance, functional test of PEN-fault protection (if fitted).

    • Hardware: connector wear, tethered cable integrity, enclosure seals, signage and bay markings.

    • Software & networking: firmware updates, OCPP/back-office connectivity, RFID/payment checks, load-balancing rules.

    • For multi-site clients: uptime monitoring, automated alerts and monthly availability reporting.

    Our Other Services

    Solar PV

    As a local company specialising in solar panel installations, we offer quality products and straightforward quotes.
    Learn More

    Heat Pumps

    Our heat pump installation services cater to both residential and commercial properties, enhancing energy efficiency.
    Learn More

    Battery Storage

    Adding a solar battery to your existing solar panel system can maximise your energy storage and usage.
    Learn More

    Solar Immersion

    Solar immersion allows you to use the energy created from your photovoltaics or other low carbon technologies.
    Learn More

    EV Charging

    Get your electric vehicle charging at home with a safe, smart, and professionally installed EV charger.
    Learn More
    © 2025 CloseCooper Renewables Ltd