In Alabama I rarely get snow. My solar panels produce about 70% of the power my house consumes. It'll be maybe 50% after I convert my gas appliances to electric. I'm thinking of getting an EV truck when my old truck gives up the ghost, but keep a gas car. I'm not decided on it, but I'll think on it.
A 100% fossil free solution? Nope. Enough to pay for itself in about 12 or 13 years? Yep. That's not as much of a ROI as putting my money into mutual funds in tax break retirement accounts. But mine and my wife's wealth is already way on track to being enough for us to retire. So I'm working on lowering our future expenses that vary a lot --- like energy expenses. Especially with the Dims all about punishing us all for cow farts and such with higher taxes and regulations on energy consumption. And when my solar system pays for itself, any money it saves me beyond that will be used to repair and it upgrade it to give me further cushion in case the Dims go even more mark of the beast on us.
At least, that's my take on the usefulness of solar. All that hopey-save-the-world BS the Dims talk about is garbage.
Do you backup with batteries?