Got land, not just a roof? See how energy-independent you could be.
Enter your property and we run an honest check: is your site actually windy enough for a turbine, and how far can ground-mounted solar plus a battery take you toward going off-grid? Real numbers, no sales pitch.
Where is your property?
We reuse this to pull local wind and sun data.
From a plot of land to an honest autarky plan
1 · Your property
Enter your address and a few details — open land, terrain and how much power you use.
2 · The honest wind check
We pull site-specific wind data and tell you plainly whether a small turbine is worth it here (for most homes, it isn't).
3 · What actually pays off
We size ground-mounted solar + a battery for your land and show your autarky score, cost and payback.
Ground-mounted solar + a right-sized battery — sized to your plot and your usage.
Off-grid & autarky — questions
Is a home wind turbine worth it?
For most homes, no. Small turbines need a hub-height average of roughly 5–6 m/s to pay back, and most inland and suburban sites sit well below that. This tool checks your specific site honestly — and if wind isn't viable, it shows you what is: ground-mounted solar and a battery.
What is an autarky score?
It's the share of your yearly electricity you could cover yourself with your own generation and battery, instead of buying from the grid. A score of 70% means you'd still draw about 30% from the grid across the year — mostly in winter.
Can I go fully off-grid (100%)?
Technically yes, but full year-round autonomy needs heavy oversizing of both solar and battery to cover dark winter weeks, which is rarely economic on the grid. Most people target a high autarky score (60–90%) and keep a grid connection as backup.
How much land do I need for ground-mounted solar?
As a rule of thumb, a ground array needs roughly 15 m² of usable land per kWp once you allow for row spacing and access. A 10 kWp array — enough to cover a typical household — needs around 150 m² of open ground.
Where does the wind data come from?
From the ERA5 reanalysis via Open-Meteo — a full 2024 year of hourly wind speed at 10 m and 100 m for your exact location. We derive the local wind profile and extrapolate to your mast height. It's an estimate for screening, not a substitute for an on-site measurement.