The Search for Thermal Comfort
In the beginning there was woman and man, naked; I assume. The body’s core temperature is stable at about 98 °F. In an outdoor environment with a temperature between 65 to 102 °F, a ...
On an ongoing basis, California’s investor-owned utilities (IOUs), in collaboration with the California Public Utilities Commission (CPUC) and the California Energy Commission (CEC), develop programs designed to promote residential energy efficiency. In 2010, recognizing ... [continue reading]
According to DOE’s Building America program data, typical residential ductwork efficiency is about 67%. That means that if you install a 90% efficient furnace, your system efficiency would be just over 60%. Another way to look ... [continue reading]
Energy auditors use a simple, well-known approach called a utility bill disaggregation to analyze a home's overall energy use. Here's a quick summary of that technique as detailed in Krigger and Dorsey's Residential Energy: [continue reading]
Long ago, when I started in this business, I wished for a pair of glasses that I could put on to see how the air was moving. (Now I wear glasses all the time just ... [continue reading]
As the house gets tighter, the effectiveness of the ventilation system becomes increasingly critical. [continue reading]
In 2008, California set a bold new goal for its homebuilders. The California Long Term Energy Efficiency Strategic Plan makes it ...
Looking to get involved in the second annual Energy Efficiency Day on October 5th? Last year's first-ever national event was ...