With over 11,000 megawatts of wind energy on line in the USA and 2,000 of it coming on line in 2006 alone, wind stands to be a major contributor to renewable energy generation.
One of the obstacles to the adoption of wind generation as a major electric energy generation source in the Untied States has been the contention by some in the Utility industry that wind energy must be covered by duplicate dispatchable fixed output generation facilities. This argument has been used to down play the importance and usefulness of wind energy to the growing renewable energy moment. The argument goes like this.
Since the wind can stop blowing at any time, coal or other conventional generation resources must be built simultaneously with wind production facilities, just in case the wind stops blowing. While it maybe true that wind is not as reliable as conventional generation, according to a Utility Wind Integration Group ( UWIG) report entitled, " Utility Wind Generation State of the Art", studies confirm that wind generation can stand alone as a generation source without the requirement for fossil fuel back up.
The anti wind sentiment also dampened the enthusiasm of utility planners to the acceptance of combined cycle gasification technologies and other advance clean coal and clean fossil fuel technologies because they argued that the extra expense of these unproven technologies was not justified if wind generators could kick in any time the wind was blowing hard enough to cover the demand.
While some of you may see a pattern here ( read conspiracy) I think that utilities justifiably and sincerely are concerned about the impact that wind generators might have on a stable energy grid. Restarting a coal fired plant (50% or more of the USA’s generation fuel) is no easy task. Neither is balancing load requirements with available electricity generation facilities. While some may retort that this is not rocket science, I think its pretty close. Keep in mind that terribly expensive things happen to utilities when there is not enough power available to cover the demand from millions of independent homes and businesses. Every kilowatt hour sent to your house or business comes from a system that plans ahead for your equipment to come on even when you haven’t told anyone that you have the equipment.
Utilities have developed suffisticated computer models that use weather forecasts, seasonal business cycle histories and historic residential demand data for the average home in their service area. They are prepared to turn on, ramp up and stoke up generation facilities or turn off, ramp down or slow down every generator in the USA every thirty minutes to an hour, 24 hours a day 365 days per year. Just to keep us in cold beer and toast. Well, I guess it is more than just cold beer and toast.
The UWIG report acknowledges that Wind Generators are a different type of generator but assure planners that wind generation can fit into the existing electricity generation system nationwide, with the proper planning, design and integration.
Electric energy dispatchers rely heavily on weather forecaster’s temperature predictions for scheduling their power delivery. The UWIG report says that weather forecasters are 80% effect at predicting wind speeds and durations. This additional weather data can go a long way towards making wind generators as reliable, predicable and dispatch able as fossil fuel generators.
Recent policy approvals for amendments to the National Energy Policy Act of 2005 lend new support for renewable energy initiatives. This could be the perfect storm that renewable energy needs to get a little help out there. The coal, nuclear and oil industries have subsidies and federal support that has been in place for decades. Now is the time to lend that same support to renewable energy by supporting Renewable Electricity Standards.
Over twenty states including,California, New Mexico, Minnesota, Oregon, and Colorado – have or are implementing Renewable Portfolio Standards of 20 percent or more. Now is the time to take it nation wide.
Have you contacted your legislators to show support for Renewable Energy Standards? I'd like to hear from you one way or the other about this. What are your thoughts on the subject?
© Mark Daily 2007
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