Location and tariff
Choose country, electricity price, and peak sun hours.
Tools
Homepage Solar Calculator Functions
The original calculator remains on the homepage with every planning control, chart, roof visualizer, and export function preserved.
Load profile
Enter monthly bill, family size, and high-consumption appliances.
Roof planning
Use roof area and roof dimensions to visualize solar panel capacity.
Savings metrics
Review payback, 26-year savings, bill reduction, CO2, and home value estimate.
Battery note
Estimate battery value based on electricity price and sun conditions.
Export report
Export PNG or PDF summaries when browser export libraries are available.