ENERGY STAR products are independently certified to save energy with out sacrificing features or functionality. A latest examine by the European Fee thinks not. The examine estimates that the United States has the potential to save lots of about 45 TWh energy per year, by way of use of energy efficient transformers. Even a 0.01 p.c gain in the common effectivity of utility transformers installed in the U.S. in a single year, can save as a lot as 2.9 Twh energy.
Why are bicycles so much more environment friendly? The key to the energy efficiency of the bicycle is easy – a bicycle and rider are extremely gentle compared the typical automotive. In a 2 ton automobile with a a hundred and seventy lbs driver the motive force is barely 4% of the overall weight. On a heavier 30 lbs bicycle that same driver might be eighty five% of the whole weight. In a automobile 96% of the energy used every mile is used transferring the automobile itself – not the drive. On a bicycle solely 15% of the energy used shifting the bicycle itself.
The interaction between energy effectivity improvements and the deployment of renewable energy technologies is advanced. If the respective potentials in these two fields are combined, whole global energy demand can be lowered by up to 1 / 4 by 2030, IRENA and C2E2 find. Energy effectivity measures would account for half to a few-quarters of the overall energy savings, with renewables delivering the remainder.