Choose by connection type
UK solar calculators and planning tools
Start with where the electricity will be used. A domestic mains-connected system, an independent outbuilding and portable camping equipment have different calculations and safety boundaries.
Choose a calculator
Appliance power checker
Can It Power This?
Check battery, inverter and solar requirements for a UK appliance.
Check an appliance
Mains-connected planning
Home plug-in solar calculator
Estimate generation, annual savings, unused energy and payback.
Calculate home savings
Shed and workshop
Shed solar calculator
Size battery storage, inverter output and panels for shed loads.
Size a shed system
Garden workspace
Garden office solar calculator
Plan reliable power for laptops, monitors, networking and lighting.
Size an office system
Portable off-grid
Camping solar calculator
Estimate trip energy, portable battery, inverter and solar needs.
Plan a camping setupContinue to a buying guide
Compare solar product types
Separate grid-connected systems, off-grid kits and portable power.
Explore buying guidePortable power stations
Compare capacity, output, solar input and suitable portable loads.
Explore buying guideOff-grid shed kits
Choose between an integrated station and a component-based system.
Explore buying guideGarden office solar
Turn estimated office loads into a practical equipment shortlist.
Explore buying guideWant a more accurate appliance figure?
Estimates are usually enough. Measure real watts or kWh only when you want to refine the result.
Explore buying guideImportant category boundary
Portable power stations, portable panels and leisure batteries are off-grid products used through their intended outputs. They are not automatically lawful or suitable for connection to domestic mains wiring. Battery-integrated products are not automatically covered by any UK plug-in solar approach.