KiloWatt Club

Join the club.

One account, every device. Your streak follows you from the school lab to your phone.

How old are you?

We ask because the law treats under-18s differently — not to show you anything different.

Next: the pledge. Five lines about logging honestly — we’ll show them to you as soon as your account exists, because they matter more than a tick box.

Answer the questions above to continue.

Already have an account? Sign in

We keep your email, a display name, and the actions you log. Bills and appliances are optional. No ads, no tracking, nothing sold — the full list is here. School accounts only ever appear inside their school.