SolarBatteriesPower billsEV charging at home
kW vs kWh: the difference, explained in 3 minutes
Kilowatts are the rate, kilowatt-hours are the amount. The one idea behind every solar quote, battery spec, EV charger and power bill, with video.
Power bills
Supply charges, time-of-use rates and feed-in tariffs, line by line.
BatteriesPower bills
Is a home battery worth it? The payback, worked through
How to work out a home battery's payback from your own bill: usable kWh, what each stored kWh saves, rebates in 2026, and when a battery makes sense.
Power bills
How to read your electricity bill (with or without solar)
Supply charges, usage rates, time-of-use, demand charges and feed-in tariffs, line by line, with a worked example so you can check your own bill.
SolarPower bills
What size solar system do I need? Work it out from your bill
A four-step sum using your power bill, your local sun and when you use power. Worked examples for 20 kWh a day, 1,000 kWh a month and adding an EV.