Weather.
If you want 1KW reliably off grid (24/7 with 24kwh battery) (let’s assume 5 hrs solar insulation) you’ll need around 20kw of panels. Even then, you’ll have occasional shortages in inclement weather.
If you are on the grid (theoretically unlimited battery, just averaging over the year) you’ll need 4.8 kw of panels.
Batteries are the hard part of solar.
Exactly. I really hope that the price will come down far enough that I can bridge two days, that would have a huge effect. I'm typically many MWh in the plus over a year but during the winter months it's just terrible, and they're ending the metering arrangement here this year.
I am lucky that weather is not a problem here, and yes we are grid connected. So I am 100% net positive on solar inference with 5kW.