How to convert your monthly electricity bill into a solar system size.
Start with units, tariff and roof area. Learn why a bill-only calculation is useful for planning but not enough for a final quotation.
Try the calculator →Practical articles for homeowners, businesses and project teams comparing system size, module technology and energy economics.
Start with units, tariff and roof area. Learn why a bill-only calculation is useful for planning but not enough for a final quotation.
Try the calculator →Understand N-type cells, module efficiency and why high-output modules can change roof utilisation.
Explore modules →Rear-side generation depends on mounting and site conditions. Learn what affects the practical gain.
Read resources →Tariff, annual generation, system size, self-consumption and export rules all influence the outcome.
Estimate savings →Move from a general idea to numbers, products and a practical enquiry.