A year on year comparison shows a 50% decrease (633 kWh in February 2013 versus 1286 kWh in February 2012) in electricity consumption. Unfortunately, I experienced a month-to-month increase of 27%. This was likely due to the average temperature being 3 degrees colder and to keeping the house generally warmer (just got married, so we’re actually here some and prefer not to totally freeze!).
A year on year comparison shows an astounding 61% decrease in electricity consumption for the January billing period (1287 kWh in 2012 versus 497 kWh this year). The average temperature for each period (January 2012 and January 2013) was 47 degrees Fahrenheit.
Again, much of the difference is due a new 15 SEER Rheem HVAC and a Nest thermostat.