Aug 30, 2014 - 07:31 PM
Once the battery is warm enough to be available, at those temperatures, I doubt you would get much more than 20 miles range with climate control enabled. The engine will also cycle on every few minutes or so for ERDTT. Not sure how often at those temperatures. ERDTT cycles on to wam the fluid used for the climate control. Here is more detail.
"At ambient temperatures of approximately 25° F (–4° C) or below, the ICE will operate to assist in warming the coolant used to warm the vehicle’s cabin. After the coolant temperature reaches approximately 150° F (65° C), the ICE will turn off and remain off (as long as the battery state of charge is sufficient) until the engine coolant temperature drops to approximately 104° F (40° C), at which time the ICE will restart. This function will continue as long as the ambient temperature is approximately 25° F (–4° C) or less while driving. After the ambient temperature rises above approximately 25° F (–4° C), the vehicle will resume normal electric operation (as long as the battery state of charge is sufficient). This is normal operation and no repairs should be made to correct this condition."
That description was before there was the Cold and Very Cold settings in the vehicle configuration for engine assisted heating, which now have ERDTT at 35F for Cold and 15F for Very Cold.
Aug 31, 2014 - 11:09 AM
I think the 20 miles that the previous poster mentioned might even be too optimistic a guess. I usually get around 20 when it gets cold in Texas (always above 20 degrees F). There are just too many variables to account for in energy usage to give you a definitive answer. The ICE is utilized for both conditioning the battery to an optimal temperature and to maintain the cabin temp. I would say the car would have difficulty maintaining 60 degrees and you'd have to use the Comfort mode, which means your "comfort" would be using 65%+ of your energy, and probably using gas more than half the time anyway.
Now, with the new Volts, there's a feature that lets you choose to operate the vehicle in gas mode only. I would probably utilize this feature when it's that cold as the battery would be almost worthless anyway. What I would do in winter months is use gas only on the morning commute, then let the Volt operate normally on my afternoon commute back home when it was likely 20 degrees warmer.
Oct 30, 2015 - 09:44 AM