Nuclear has the risk of radiation release, coal has the guarantee of radiation release. But rooftop solar is still the best option. Solar along fences, solar above electrified train tracks.

Energy storage is not a solved problem at scale yet. Are we making useful progress? Sure. But, not solved yet.

Overbuild production capacity sufficiently and the need for storage size goes down fast.

(If your grid can supply twice your need at full power it will still be enough with half the sun and wind, and the storage will be filled faster and used less. We actually ran the numbers.)

What are Terrawatts?

> What are Terrawatts?

1 terawatt (TW) = 10e12 watts. Then 1 watt-hour (Wh) is 3600 joules.

Or maybe you meant to say they misspelled the word? But then you would have just said it was a misspelling, so I assumed you asked about the unit itself.

"Tera" is an SI prefix and "Watt" is the SI unit of power.

https://en.wikipedia.org/wiki/Metric_prefix#List_of_SI_prefi...

https://en.wikipedia.org/wiki/Watt

Terra is the SI unit for 10^12. One Terrawatt-hour is the electrical energy equivalent to 1,000,000,000,000 watts, generated in one hour.