National Energy Systems are Wasteful: About 75% of the fossil energy taken out of the ground to generate electricity never reaches the end user as electricity due to various losses. Then the user feeds the energy into devices with efficiencies as little as 5%, such as incandescent light bulbs. Such wasteful, national energy systems developed over the decades, because the fossil energy was, and still is, low-cost. Even district CHP plants with thermal and electrical distribution systems, popular in Denmark, etc., have low efficiencies, if all energy losses and costs are taken into account; the CHP plants may be efficient, but the distribution systems and connected buildings usually are not.
Building Energy Efficiency
As all technologies are fully developed and proven, more energy could be locally generated and locally consumed in energy-efficient buildings, all “under one roof”, as shown by the alternatives in the article. There would be massive resistance from special interests to go into that direction, as they have grown big by exploiting the fossil fuel-addicted society for at least the past 100 years.
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