Actual production
Measured energy or power produced by the system after validation.
Solar analytics glossary
A shared language for performance decisions.
ArraySignal uses explicit definitions and units so asset owners, O&M teams, portfolio managers, and engineers can interpret results consistently.
Availability
The share of eligible operating time in which a system or component is available under defined evidence rules.
Clipping
Output constrained near an inverter or system AC limit during high potential generation; often normal design behavior.
Data coverage
The share of expected intervals containing valid usable measurements.
Energy deficit
Eligible expected energy minus actual energy, never silently inferred from missing telemetry.
Expected production
Modeled generation based on site configuration, weather, and a named model version.
GHI
Global horizontal irradiance, expressed in watts per square meter.
Health score
An explainable summary of performance, availability, coverage, and qualified issue severity.
Modeled lost energy
An estimate of forgone generation supported by expected production and quality-qualified evidence.
Performance percentage
Eligible actual energy divided by eligible expected energy.
POA irradiance
Plane-of-array irradiance incident on the module plane, expressed in watts per square meter.
Probable fault
A classification supported by analytical evidence but not confirmed by physical inspection.
Revenue impact
Modeled lost energy multiplied by an explicit energy-value assumption; not guaranteed savings.
Soiling
Performance loss associated with material accumulated on module surfaces; confirmation generally requires field evidence.
Telemetry
Timestamped measurements such as power, energy, irradiance, temperature, and equipment status.
Explore your portfolio
Bring a real operating question to the conversation.
We’ll discuss telemetry coverage, portfolio priorities, and a practical evaluation scope—without presenting sample estimates as guaranteed outcomes.