Efficiency First is reporting this afternoon that the HomeStar legislation which would provide incentives for home energy retrofit projects passed the U.S. House of Representatives today with bipartisan support. The HomeStar Energy Retrofit Act of 2010 (H.R. 5019) passed with a vote of 246-161. Though this is a major milestone for this legislation and the [...]
Posts Tagged sacbuildingperformance
Infrared Thermal Imaging
May 3
Originally developed by the U.S. military as an advanced weapon sighting technology FLIR or Forward Looking Infra Red thermal imagers were eventually adapted by firefighters to aid in identifying hidden fires in walls and looking for victims in low-visibility smoke environments. Unlike x-ray technology infrared does not see through a material but graphically measures subtle [...]
Ductwork Testing
Apr 29
Based on field testing conducted statewide over a number of years, the California Energy Commission estimates the average duct leakage in California homes regardless of size and vintage to be 30%.
This translates into an increase in heating and cooling costs of approximately 20% for the average home.
The federal government’s stimulus package provides tax credits for an assortment of energy efficient home improvements. These range from building envelope improvements like air sealing and insulation through windows, heating and cooling equipment all the way to renewable energy projects like PV solar.
In the previous post in this series, we outlined some of the cause and effect of inadequate and uncontrolled infiltration. Let’s talk about some solutions to those problems. Source control Often an effective first step available to most households is source control. Store pollutant sources such as paints, solvents and other chemicals in a cabinet [...]
It’s a given that a green home should provide its occupants with superior indoor air quality, but the reality is all homes need good ventilation to exchange indoor air often containing moisture, odors and pollutants with fresh outdoor air. Thanks to environmental programs such as the Clean Air Act and other regulation our outdoor air [...]
What comes to mind when you think of energy efficiency?
It’s also important to keep in mind that energy efficiency isn’t about giving up things like comfort and convenience. It’s about getting more out of the resources we already use. We can enjoy a comfortable, well-lit home while being energy efficient and saving money too.
There have been a lot of marketing dollars spent promoting the advantages of tankless water heaters, but little attention given to the issues that could reduce those advantages. In the last couple of posts in this series, we examined a number of important issues any homeowner needs to weigh before deciding to replace their existing [...]
In the last post we examined tha actual efficiencies of tankless waterheaters apart from the industry claims. We discussed the high upfront cost against the actual savings in dollars. A couple of other issues to keep in mind if considering going tankless: “Cold Water Sandwich” Imagine a common situation we have all experienced. You turn [...]
Tankless or on-demand waterheaters have been enjoying a rising popularity for a number of years now. During my years of custom homebuilding they were considered a must have feature for a number of reasons. They are purported to save energy over a standard storage type waterheater because you aren’t paying for the standbuy losses of heating a tank [...]
2009 may well go down in the record books as one of the economically worst in recent memory. Venture capitol investing and IPOs fell to their lowest levels in over 10 years. Governments around the globe scrambled to implement stimulus programs to shore up their crumbling economies and try to create jobs to counter rising [...]
Solar Power Inc. of Roseville a manufacturer and installer of commercial, industrial and residential PV solar systems has recieved $24.7 million in Stimulus funding. Founded in 2005, Solar Power has installed numerous PV solar systems including the largest PV system in the state of Georgia at the Mannheim DRIVE Center a 165,000 square foot auto [...]
Simply put, yes it can. Traditionally, wood framed structures supplied needed ventilation and moisture control by infiltration through the building’s shell. This worked well except there was a trade off: excessive heat loss and cold drafts. Even with the addition of insulation, excessive air infiltration across fiberglass batts renders them ineffective at preventing heat loss. Fast forward a few years. In [...]
