Technical tools for early solar decisions
Use transparent assumptions to explore a design or commercial scenario, then discuss the results with an engineer.
PV Layout Auto-Fill
Estimate a rectangular module layout from roof and module dimensions. Validate setbacks, access, structure and shading separately.
Open toolArray & String Visualiser
Visualise module grouping and string patterns. Equipment voltage/current compatibility requires an engineering check.
Open toolInverter Sizing & DC/AC Ratio
Calculate DC capacity divided by inverter AC rating. No unsupported clipping estimate.
Open toolAnnual Energy Yield & Measured Comparison
Estimate annual energy and compare measured energy for the same year; this is not PR.
Open toolFinancial Payback & IRR
Explore simple payback and a constant-cash-flow IRR scenario. Review tariff, O&M, degradation, tax and financing assumptions.
Open toolBill Savings & CO₂ Reduction
Translate a supplied annual yield into gross bill savings and avoided emissions using your stated tariff and emissions factor.
Open toolFrom calculation to assessment
These tools support preliminary exploration. Project decisions require site data, equipment specifications and a defined technical or commercial scope.