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Clean Energy not so green  

Credit:  Marin Independent Journal | 05/16/2014 | www.marinij.com ~~

I read Craig Rippens’ May 13 letter about Marin Clean Energy and was left somewhat confused by his conclusion: “I’m sticking with the program.”

He apparently made this decision even though he now knows “that the clean electricity spewing from my sockets is at least as dirty as that provided by PG&E.”

I need to tell him it is dirtier than that provided by PG&E.

As an engineer with over 40 years experience in the electric utility industry, I would like to inform all MCE customers that only 29 percent of the power provided by MCE is “clean” when clean is defined as CO2-free.

This is based on the postcard sent out about a year ago. When that is compared to the same information on that postcard about PG&E, 47 percent of the power PG&E provides is CO2-free.

The generation mix of a public utility is driven by many factors other than “green and renewable” considerations. Solar does not work at night, wind does not always blow when needed and eliminating large hydro from the definition of renewable further complicates the matter.

Then you have the issue of wind power requiring 32 times more space per kilowatt of generation capacity than a nuclear plant.

In 2011 MCE generated 99,142 megawatt hours, per its documents. On an annual basis, this represents about 14 megawatts of generation capacity based on an 80 percent availability factor at 100 percent output. This is a little over 0.2 percent of PG&E-owned generation facilities.

So the MCE staff should be happy that Mr. Rippens and others like him are “sticking with the program.” And their customers should sleep better knowing now that the majority of the electricity they are provided is the cleanest and most reliable in the state because the majority of it ultimately comes from PG&E.

Terry V. Molloy, Novato

Source:  Marin Independent Journal | 05/16/2014 | www.marinij.com

This article is the work of the source indicated. Any opinions expressed in it are not necessarily those of National Wind Watch.

The copyright of this article resides with the author or publisher indicated. As part of its noncommercial effort to present the environmental, social, scientific, and economic issues of large-scale wind power development to a global audience seeking such information, National Wind Watch endeavors to observe “fair use” as provided for in section 107 of U.S. Copyright Law and similar “fair dealing” provisions of the copyright laws of other nations. Send requests to excerpt, general inquiries, and comments via e-mail.

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