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> The average household consumes 28.9kwh in a day

Maybe in the USA.

> which is way more than rooftop solar can provide.

Maybe in your part of the world this is true, but it is not unrealistic in many places.

Also, why are you limiting your thinking to rooftop solar?

Probably in a lot of countries in the future. One common reason countries have lower average household electricity consumption is the widespread use of non-electric heating, and there's been a huge push to switch to electric heating for environmental reasons.

American houses tend to be bigger than those in other countries, and built with poor insulation than say those of europe.

The article is referring to the prices in the US.

When land is at a premium, most people aren't going to cover their yard with solar panels. . Rooftop is already generally accepted.

I don't get it, are these built on people's yards?

https://constructionreviewonline.com/biggest-projects/top-5-...

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