I grew up in a small country of 400K people, which in 2012 generated 2.2GWh of power. [1] This is very easy to calculate, since the country has only 2 power plants, and the electricity grid is completely isolated. [2]

I was astonished to realize that the battery output of 4 weeks from the gigafactory would power my native country entirely from batteries for a full year!

[1] Page 2: http://www.nso.gov.mt/statdoc/document_file.aspx?id=3743

[2] https://www.enemalta.com.mt/index.aspx?cat=2&art=5