Althea Power
What We Maintain

Renewable Energy & Storage

Balance-of-plant electrical maintenance for solar, wind, and battery storage — the collection system, MV equipment, and interconnection that determine plant availability. We focus on the electrical infrastructure between the module or turbine and the point of interconnection, where most availability loss originates.

Plant availability. Collection system. Point of interconnection.

  • Collection Systems
  • Inverters & Power Conversion
  • Battery Energy Storage
  • Interconnection & Substation
  • Availability & Performance

Systems and what we do to them

Collection Systems

  • MV cable testing — VLF, tan delta, and partial discharge
  • Fault location, cable repair, and splice replacement
  • Trench, vault, and termination inspection
  • Combiner box, recombiner, and DC collection inspection and torque verification
  • DC arc fault investigation and string-level troubleshooting

Inverters & Power Conversion

  • Inverter and skid preventive maintenance and filter service
  • Cooling system, heat exchanger, and fan maintenance
  • Firmware coordination with OEM and warranty support
  • MV transformer and skid transformer testing
  • Skid switchgear and disconnect maintenance

Battery Energy Storage

  • BESS enclosure and rack inspection
  • Battery management system support and module replacement
  • Thermal management and HVAC electrical maintenance
  • PCS maintenance and testing
  • Capacity and round-trip efficiency testing support

Interconnection & Substation

  • Plant substation maintenance and testing
  • Protective relay testing and utility compliance witness support
  • Metering verification and revenue meter testing
  • Reactive power and voltage regulation equipment maintenance

Availability & Performance

  • Infrared thermography of arrays, combiners, and MV equipment
  • SCADA and communications troubleshooting, fiber repair
  • Availability reporting and root-cause analysis on repeat faults
  • Grounding system inspection and repair
  • Repowering, retrofit, and equipment replacement execution

Also in What We Maintain

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