In California those with PG&E are required to have a SmartMeter. It will record your energy usage on an hourly basis which you can view online. Nice "free" technology we end up paying through with higher rates. I guess what irks me here are the progressive rate structure which charges you more per kWh the more you use. Yet they don't change demand, only usage. In my opinion how I have my AC set (to allow the house to warm up during the week while I'm gone then cool before I'm home) increases my hourly demand in the late afternoon (~4 kWh/hr) then leaving it at my house temperature all day long (which would have it flatline around ~2.5 kWh/h. That swing demand is what is hard for untillities to handle, not consistent baseline. I don't know, when I get down to it, insulation will do more over the long run than any thermostat gadget, IMHO, boring as it may sound.