New Garage Door – Energy Efficiency Test Shows
A garage door can make a difference in energy savings on a solar home, preliminary test findings from a case in Utah show.
Those findings come in relation to a garage door Martin Door Manufacturing contributed to a solar home project in Holladay, Utah in March. Ned Hart, marketing director for TerraSun Energy, provided initial test data on the home conversion and said the data shows the new door is making a difference.
The findings include the following details and data:
– The new opener cut down considerably on strength usage. The homeowner found the old garage door opener was heavy on energy usage in comparison to the new opener. It takes approximately 40 watts of strength to function the opener, according to Hart. He said the old opener used about 440 watts to open or close the door The family cycles the garage door about 600 times a month, so Hart estimated a substantial savings in energy, with the new opener.
“This is a emotional energy savings over the time of each month, reducing energy consumption from 4500 watts to 435 watts each month, or 48,000 watts yearly. For a solar home, this is a REALLY big deal,” Hart said.
– The new opener also facilitated use of CFL or LED bulbs, while the old opener did not. That cut energy usage from 120 watts to three, according to the energy official.
– The double pane windows used in the insulation make a big difference in energy savings in the garage. Hart said the additional insulation factor from the door has made a noticeable difference in the temperature of the garage, and consequently has impacted the temperature of the home itself. As part of the solar conversion, workers applied a coat of Temp-Coat, an insulating paint, to the walls of the garage nearby to the home.
Test data and measurements are regularly being taken. Hart was eager to observe that the thermal images of the home showed the concrete was radiating more heat than the garage door.
Before the project began, the home’s gas and electric bills for January 2009 alone totaled $460. The goal for the home is “0” monthly gas and electric utility bills. Various measures are being taken to accomplish this.
For example, during the day the surplus electricity generated by the solar panels truly backs up the meter. At night, the meter moves forward as electricity is consumed from the landline.
Updates to the home include the insulated Martin Garage Door, Martin DC3700e-o opener; energy efficient heat pumps, a biomass boiler, solar electric and hot water panels, additional insulation, tree management (shading solar panels) new roof shingles, etc.