Munty LabsBeta

A house that measures itself.

Solar, a battery and an electric car on one home, read every half hour. The free tools here run the same sums on yours.

Try Replay on my home

Free. No email needed.

The roof against the standard estimate

+20.8 %

The roof made this much more than PVGIS says for an average year.

PVGIS3,136 kWh

Roof3,788 kWh

98 days
measured
11 Oct 2026
up to
Inverter
measured by

PVGIS is the European Commission's free solar estimate. It is an average year, not this year's weather.

Tools for your home

Free. No account. Nothing kept unless you ask.

SwitchWhich tariff is cheapest for my use?About 30 secondsAbout 30 secondsPulse LiteHow does my home compare with a typical one?About 30 secondsAbout 30 secondsReplayWhat would solar or a battery have saved me last year?Your whole yearYour whole year

What the house found

All findings
The roof made 21 % more than PVGIS saidHow close is the standard solar estimate to a real roof?

About Munty Labs

I'm Munty. I'm turning my own home into a lab, to find out what home energy kit really does.

The house has a large solar roof, a home battery and an electric car. A heat pump goes in next month. Sensors in every room record what the house does, day and night.

I film what the house finds for YouTube. The channel starts at the end of October. The tools on this site run the same sums on your home, for free.

If a brand lends me kit to test, I'll say so on the page and in the video.

Get in touch: hello@muntylabs.com