How do I compare to folks in this group?

I try hard, but it’s difficult in the winter with a 100 year old home (the windows were updated 30 years ago). I have friends that claim to be anti-consumption environmentalists, and yet their house is 72° and their electricity usage is at 1200kWh a month. I remind them often that it’s okay to wear a sweater indoors, but those words fall on deaf ears.