Here is what we used (kWh) for 2005 through 2012 for Jul, Aug and Sep, the hottest months. We have an Amarillo.
2005 4093 kwh
2006 3785 kwh
2007 3779 kwh
2008 3786 kwh
2009 3448 kwh
installation of radiant barrier in spring 2010
2010 3716 kwh
2011 3761 kwh
2012 3484 kwh
Following info from SECO site:
Lower attic temperature in the summer up to 30 degrees.
Lower humidity in buildings where air-handlers are in the attic.
Lower air temperature of air conditioning out of AC ducts.
Lower cooling and heating costs.
Increased attic temperature in winter months.
Increased comfort throughout the building.
We had this stuff from Energy Home Shield installed primarily as an economic measure, but our usage doesn't support SECO's claims.
Energy Home Shield site says payback will be 3-4 yrs for 1800 sq ft home. And a 25% reduction of total bill. I am not disputing the claims but figures show it isn't doing anything for us.
|