Windmills for the desert

Do you HATE turning off the power for your desert residents, but lack in hydroelectricity?

Introducing the windmill - producing 50 electricity and using only 6 workers, it will bump your electricity production up!

The ZIP file:
https://drive.google.com/file/d/1Udcpl-_...sp=sharing

Having an issue with this one where it locks the city's population counter at 0 regardless of if you start with it enabled or add it to an existing save, which totally prevents any further game progression :(