SolarCalculator4U.com
Smart Solar Power Estimator
Find all of our free online solar calculators, electric vehicle tools, educational guides, and legal pages in one place.
Calculate recommended system size (kWp) and panel count based on appliance loads or monthly electric bills.
Estimate annual savings, Smart Export Guarantee (SEG) earnings, and 25-year return on investment by UK region.
Compare export rates from Octopus, British Gas, OVO, and EDF to see how much you can earn selling power back.
Find the optimal plug-in balcony solar setup (balkonkraftwerk) and estimated electricity yields for UK/Europe.
Right-size your grid-tied or off-grid solar inverter based on peak simultaneous load and total solar array capacity.
Calculate monthly and yearly fuel savings by switching to an electric vehicle, including solar charging options.
Compare the exact costs and charging times for home standard, home off-peak EV tariffs, and public rapid charging.