In case you've never been there, let me tell you: Nebraska is cold in the winter.
What if there were a greenhouse system that could handle the cold for $1 a day.
Apparently, there is...
It's called geothermal energy.
Dig down a little bit - everywhere on earth - and the earth maintains a uniform temperature. If you can pump that warmth to the surface and enclose it and you've got warmth.
Not cheap or easy to set up, but once you do, you've got a game changer.