Full-Fuel-Cycle Measurement is the Way to GoLast week Laura Sheehan contributed to The Hill’s Blog to discuss the recent study released by the National Academies that recommends that the U.S. Department of Energy consider changing its system of setting appliance energy-efficiency standards to a full-fuel-cycle measurement. Please take a moment to read her blog posted below or visit The Hill’s Blog to view the comments from others on this topic.
Full-Fuel-Cycle Measurement is the Way to Go
May 28th, 2009
The highly regarded National Academies came out with a report yesterday (commissioned by Congress) confirming what the American Gas Association (AGA) has long been heralding about energy efficiency measurements in appliances-that the Department of Energy should measure efficiency in appliances from the point of production (think the natural gas wellhead) and not just “on-site” (think the natural gas burner tip in your kitchen). This more complete and more accurate energy efficiency measurement, called a full-fuel-cycle measurement, takes into account the considerable amount of energy lost in producing, generating and transporting energy to the end use.
In that vein, the study supports the “carbon footprint labeling” provisions that were recently included in the Waxman-Markey climate change legislation, which would expand the existing Federal Trade Commission EnergyGuide labeling program for appliances to include carbon footprint information.
So why do we need this more expansive measurement for our appliances? The answer is so that we as consumers can be fully aware of the energy efficiency of the appliances we’re purchasing for our homes and businesses. For example, 70 percent of the total amount of fuels used in producing, generating and transmitting electricity is lost by the time that electricity reaches a customer. By contrast, producing and delivering natural gas directly only loses about 10 percent of its usable energy. The study issued by the Academies says consumers should be informed, ahead of time, of the full energy efficiency of their appliances. AGA agrees.
As a consumer, would it be helpful for you to know this kind of background information on appliances before you make a large purchase? Let us know what you think.
Industrial natural gas appliances lose 20% or more of the energy that they consume, up the chimney, lost as HOT exhaust.
This also does not have to be this way. The natural gas energy efficiency of larger commercial and industrial appliances can be increased by the technology of “condensing flue gas heat recovery”. This technology is designed to recover the energy from these waste exhaust gases, and transfer this energy into water that can then be used for building space heating or used as heated process water or plant wash down water. In a school, university or hotel this recovered energy can even be used to keep the swimming pools nice and warm.
These appliances can be operating at over 90% energy efficiency!
The DOE states that for every million BTU’s recovered from these exhaust gases, and this recovered energy is used back in the building or facility, 118 lbs of CO2 will not be emitted into the atmosphere.
If the water that is created thru this process is also utilized- there is not much to waste after that.