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

Munty leaning on the home battery, beside its switches, on the side of the house

I'm Munty. I've turned my own home into a working energy lab.

It has 24 solar panels, a home battery, an electric car and sensors in every room. A heat pump arrives next month. Around the clock, the house records what it makes, stores, uses and pays for.

On YouTube, I show what the house really does, with the real numbers. The channel launches at the end of October.

I test kit the way people live with it: installed in a real home, used every day and measured for months.

The free tools on this site run the same numbers on your house.

Brands, installers and viewers: hello@muntylabs.com