Hot Water Cylinder Size and Heat Pump Water Heater Savings
Wired White v1 Size a hot water cylinder from mixed-water demand, estimate heat-up time and standby loss, and compare heat-pump electricity, timer capacity and payback.
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Wired White v1 
PV and Home Battery Payback Calculator
Wired White v1 Compare PV and battery payback with hourly energy balances, replacement costs and dated DE, NL, FR, PL, India, Pakistan and Brazil presets. Regional currencies and settlement rules stay explicit.
Balcony Solar Calculator: Yield, Battery and Payback
Wired White v1 Design a balcony power plant and compare solar alone with a battery. Estimate hourly yield, self-consumption, annual savings and payback for German or Swiss installations.
