Don't expect that if you have enough solar to do a good job in the summer to expect it to do the same in the winter.
Don't expect to get much good from a wind generator. (Unless you have a large generator and massive battery bank)
The wind conditions here seem to be mainly in the day light hours when you don't really need it if you have sufficient solar to do the job. Only on rare occasions do they work to your advantage. (like on cloudy days and at night) Not to say you shouldn't have one because the times it works probably makes it worth while.
Figure on about double the solar than what you would need in the summer and probably considerably more batteries than you think you would need to deal with the winter conditions. (If you plan to have the same lifestyle year round)
Keep a lot of candles around for the winter nights. They also put off a very small amount of heat with the light, but don't expect them to do much in the way of heating large areas. It would take a very small well insulated area for you to notice any difference. See tip below for an emergency heater.
A sun tracking system could offset the need for some extra panels, but that could be expensive unless it is a manual deal where you go move the panels several times a day. That can be a drag and its easy to forget and in that case it is working against you instead of for you.
Emergency Heater tip.
While I was in the Army we were taught that a heater can be made out of a one pound metal coffee can, a roll of plain white toilet paper (not the loose fluffy stuff or scented!) Use something like the old styled Scott tissue. Also a bottle of 70 percent isopropyl alcohol (No higher percentage!) You don't have to use a coffee can you can use other type cans, but the roll of toilet tissue needs to fit firmly inside it with no space between it and the wall of the can. the roll also needs to be at least a small distance below the top of the can and a coffee can comes out just about right.
First you remove the cardboard tube from the inside of the toilet paper and place the roll in the coffee can. (all the way to the bottom with no paper sticking out) Then you pour about four ounces of alcohol onto the paper to saturate it. Best to keep a couple of pie plates handy one turned upside with the can setting on the bottom and the other to place over the flame when you want to extinguish it, Also keep it away from anything that will catch on fire. Once you've done that light it with a match and it will help a lot in small well insulated spaces, but will only marginally help in large areas. (Maybe a hand warmer.) should last over the night.
Also while I was in the Army one not so bright sergeant and private decided to use gasoline instead of alcohol because they didn't have any alcohol and both wound up with severe burns. Never do that!
Reason for this tip is if you ever run out of propane on a really cold night it could help a good bit if you have a small area you could set it up in. (Maybe a closet?) Should keep a 6 x6 area semi comfortable if it is insulated well enough. Would also need a small amount of ventilation, but this heater doesn't put out carbon monoxide.