[IshKebab]

That sounds a bit pointless to me. The benefit of putting solar on your house is that your house uses electricity, and transmitting electricity is not actually free.

If you just care about the overall transition to solar (which you should!) then you can pay for green tariffs and invest in existing solar energy companies or ETFs.

[ChoGGi]

The panels on my roof go straight to the energy company anyways. You need to add batteries to use it yourself.

[IshKebab]

Only the surplus goes straight to the energy company. If you're consuming any energy and producing it from solar you'll use your own solar first, even without batteries.

[elric]

Which is maybe 10-20% for most people without batteries. Better than nothing, but not great.