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Accounting for Renewable Electricity Savings

Is saving energy generated by renewable sources as important as saving energy generated by fossil fuels?

Posted on Jan 10 2017 by Anonymous


How much does it matter if energy efficiency programs like Energy StarLabeling system sponsored by the Environmental Protection Agency and the US Department of Energy for labeling the most energy-efficient products on the market; applies to a wide range of products, from computers and office equipment to refrigerators and air conditioners. or appliance energy standards save electricity generated by renewable resources like wind and solar, rather than from fossil fuel power plants? Certainly from the perspective of reducing carbon pollution, there’s a strong case that saving renewable electricity is not as valuable as saving energy generated from burning fossil fuels.

As the role of renewable electricity in the nation’s electricity supply grows, this question will become increasingly important to think through.

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Image Credits:

  1. Richard Hawley / CC BY-ND 2.0 / Flickr

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The Department of Energy Chooses a Definition for Net Zero

They also have a preferred name for buildings that produce as much energy as they use

Posted on Sep 30 2015 by Allison A. Bailes III, PhD

A few weeks ago, I wrote about whether homes that produce as much energy as they use should be called net zero energy or zero net energy homes. Several readers offered up another choice: zero energy homes.

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Image Credits:

  1. Image #1: Energy Vanguard
  2. Images #2 and #3: U.S. Dept. of Energy

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Understanding Energy Units

Don't confuse energy and power — it's important to know the difference between Btu and Btu/h, as well as kW and kWh

Posted on Jun 22 2012 by Martin Holladay

If you’ve ever been confused by the difference between 500 BtuBritish thermal unit, the amount of heat required to raise one pound of water (about a pint) one degree Fahrenheit in temperature—about the heat content of one wooden kitchen match. One Btu is equivalent to 0.293 watt-hours or 1,055 joules. and 500 Btu/h, you probably can use a handy cheat sheet to explain energy units. As a guide through the thorny thickets of energy, power, and the units used to measure them, I’ve assembled some questions and attempted to answer them.

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