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Understand the numbers, not just the answer
Three walkthroughs, each one idea per screen, each carrying a live input you can change as you read. They reach the same figures as the plain calculators and the configurator — these just show the working first.
Solar PV generation
6 chaptersWhat a kWp figure is actually predicting, then the building it depends on — where it is, which way the roof faces, how steep it is, and what shades it — put together into a generation estimate and handed on to what uses it.
Start the walkthrough →Battery storage sizing
6 chaptersThe problem a battery is actually solving, who is home and when, how much a household uses across a year, how that sets a sensible size, and the trade-off between banking savings and holding charge back for a cut.
Start the walkthrough →The guided configurator
8 stepsThe same cascade as the system configurator, one decision at a time — solar, storage or both, the inverter that decides what else fits, panels, what happens in a power cut, storage limits and metering — ending on what you have specified.
Start the walkthrough →
Already know the terms? Each walkthrough pairs with a plain version that skips straight to the form — the PV and battery calculators, and the configurator itself — all on installer tools.