Second winter we've gone through with our Clarity and warm temps are finally here again. I'm an enthusiast so I've stayed in EV most of the winter and kept the heat way down. Of course, that's gotten old. Some have mentioned that driving in hybrid mode in the winter is actually less expensive than EV because of the dramatic reduction in range coupled with the huge drain on the battery by having the heat on. My suggestion is to just drive in hybrid mode when the temp is below freezing so your can benefit from the waste heat created by the ICE. You will save money in multiple ways. In addition to lower fuel costs is the extended life of the battery by not having to charge so much in the winter time. Winter is very hard on the battery because you'll have to charge it a lot more for the same unit miles compared to the other seasons so you'll be more likely to deplete the battery on a regular basis. Also, it's a good idea to run the ICE regularly. A long term idle engine coupled with old gas is a recipe for an expensive system failure.