Solar Index, Co-Generation, and Other Energy News

By The Mother Earth News Editors
Published on January 8, 2013
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ILLUSTRATION: DEVV984/FOLTOLIA
The Solar Index shows how much solar energy is available to run domestic solar water heaters on a given day.

The following energy news items were gathered from multiple sources.


Solar Index

The solar index–a new daily-amount-of-sunshine statistic prepared by the U.S. Department of Energy and the National Weather Service–is specifically designed to show how much solar energy was available to run domestic solar water heaters on any given day. Such “sun information” is rapidly becoming a part of standard weather reporting along with the usual pollen counts, wind-chill factors, and air quality evaluations.

Co-Generation Gains Ground

Electricity rates that are twice the national average coupled with the possibility of power blackouts have caused some New York manufacturers, apartment complexes, and businesses to break away from Con Edison and install their own generators. The most successful of these systems–called “co-generation”–captures the steam normally wasted at utility power plants and uses it, along with electricity, to produce energy savings of between 10% and 30%. Even though such industries (which occasionally sell their excess power back to the utilities) could technically be subject to regulation, most “co-generating” firms say they’re delighted to “cut the umbilical cord” from Con Ed. The “parent” company, of course, is far from pleased.

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