Solar,
worked out.
Three free tools to plan rooftop solar before you talk to us — size the system, check the payback and see it on a 3D house. Everything runs in your browser.
Solar Calculator
From your monthly bill or units and roof area: recommended kWp, number of panels, roof space needed, monthly generation and approximate bill offset — with a PDF estimate.
Open calculator 02ROI Calculator
Enter the price from a real quotation and your tariff to see payback, year-by-year savings, NPV, IRR and CO₂ avoided — with optional loan financing and a PDF report.
Check payback 033D Solar Simulator
Pick a small home, villa, office block or industrial shed, place panels on the roof and watch the energy flow from sunlight to inverter, appliances, battery and grid through the day.
Launch simulatorThe calculators and the simulator run entirely in your browser. Nothing you type is sent to Quality Power Controls or anyone else unless you choose to message us.
Results are modeled estimates. A system price, exact generation and any subsidy are confirmed only after a site survey. No subsidy or equipment price is assumed by these tools.