Check your solar system
Enter your system details below. Get an instant estimate of performance loss, likely faults, and whether thermal inspection is recommended.
Solar Loss Checker
Estimate how much energy your solar system may be losing — and why.
No personal data stored. Results are estimates based on conservative modelling.
Inspection Cost Calculator
Estimate what a solar thermal inspection would cost for your system.
Costs vary by location and provider. These are conservative estimates based on market averages.
Based on conservative solar performance modelling and published degradation data
NRELIEA-PVPSSunSpecPVsyst+ published research
Updated April 2026 · Structured performance modelling
How we calculate →