The only place that we could put a greenhouse is in the back, on the north side of the house. :(
I don’t doubt that mr. mm could do it but the heating costs alone would be extortionate. And you need sun to grow things. In the winter....sun? What’s that? We’ve had stretches of three weeks without seeing the sun once. Granted it broke a record, but.....
A solid week of snow is what we can count on from mid-Dec to mid March every week.
I’ve considered cold frames. They’d extend our growing season some in the spring providing there’s no hard freeze and there’s no guarantee for that. By the time fall comes around, the plants are fading anyway; they really look pretty pathetic by then. The days are getting too short and they’ve about produced all they’re going to for the season.
When you have such extreme cold, then consider growing cold types of plants during the winter.
If it was going to see sun, you could use barrels of water to heat in the sun and give off heat at night, it works, I used old oil barrels and set my potted plants on top of a pallet that was laid on them.
It will also garner the heat that is escaping the walls of your house now......be sure to place it so it has a window or two is better, into the house.
I have known folks that used the cold frames and were happy with them.
You could move to a warmer spot.
I could not exist without the sun, a windy grey day, makes me mean and nasty.