[dzhiurgis]

> empty rooftops

That's just inefficient use of labour. I wish government used grants (or loans really) for solar farms instead. Batteries maybe, but even then it would be likely more efficient to install them on a substation level than every home.

[KptMarchewa]

> solar farms

That's just inefficient use of land.

On the battery point I agree.

[Tostino]

Want to take a stroll on Google maps with me and see all the unused or underused land in the US? People don't actually take up all that much space.

I just did a cross country drive a few days ago. We are not constrained on land.

[KptMarchewa]

US is not the whole world. Sure, if you have deserts, use them. Poland does not.

[vitally3643]

https://commons.wikimedia.org/wiki/File:Population_density_o...

Or are you talking about a different Poland?

People don't take up that much space and there is a strong tendency for populations to collapse into concentrated cities. In general, across the entire human species. All cultures and countries behave this way.

I think you've got plenty of free land.

[KptMarchewa]

Can you take a look at actual satellite map and tell me where all the unused land you apparently see is?

Pretty much all of the land in Poland is used - either for agriculture, forests or human settlements.

[dzhiurgis]

> Pretty much all

So like maybe 99%? Are you say it should be strictly 100% and none of it for solar?

You only need 1% of land for solar to sustain entire population.