Texas Drought Shows Windpower Vital, Reliable

August 12, 2011

Denise Bode, CEO of the American Wind Energy Association, writes the Texas heat/drought/power crisis revealed several lessons: wind power enhances a grid’s reliability, conventional power plants can’t operate all the time, wind farms that are dispersed are more dependable, and output from offshore and coastal wind farms can meet peak demand during summer:

It’s over, for the moment: ERCOT, the company that manages the Texas utility system, said Monday that it doesn’t expect peak electricity demand this week to surpass last week’s record levels.
As he did after a sudden freeze stressed the Texas system in FebruaryERCOT CEO Trip Doggett credited wind power with a critical contribution during last week’s power emergency. Doggett said electricity from wind farms recently installed along Texas’s Gulf Coast began flowing at just the right time to help meet peak demand in the late afternoons.

With that in mind, some lessons from the week’s real-world experience with substantial amounts of installed wind generating capacity on a large utility system:

Adding wind power makes a utility system more reliable, not less.

Balancing electricity supply and demand is a complex task, and utility system operators are used to turning various types of power plants on or off to match demand as it rises and falls throughout the day.
(below, in an earlier appearance on Fox News, Denise Bode cooly bitch slaps Stuart Varney and co. with the facts..)
Even though wind energy is variable, it varies slowly–unlike conventional power plants, which can fail instantaneously–and can be a critical component in times of need. For three straight days in the real world last week, wind made the difference between keeping the lights on and the air conditioners running, and rolling blackouts.
No power plant runs 100% of the time.
Throughout last week’s heat wave, as in February’s freeze, the Texas utility system was bedeviled by outages of conventional power plants due to extreme weather. According to an August 2 blog article by Elizabeth Souder of the Dallas Morning News, “The high temperatures also caused about 20 power plants to stop working, including at least one coal-fired plant and natural gas plants.”Souder noted that a spokesman for the Electricity Reliability Council of Texas (ERCOT), the company that manages system operations, “said such outages aren’t unusual in the hot summer…”This is fascinating, since the rap on wind is that it’s not dependable because “sometimes the wind stops blowing.”
In the real world, sometimes it also gets too hot or too cold for the supposedly dependable fueled peaking power plants to operate properly. Geographic dispersal of wind farms makes their electricity production more dependable. This is something that seems intuitively obvious–the wind is usually blowing someplace–and has been predicted by a host of studies. Last week, it became crystal clear, as the Gulf Coast wind farms, which provide some 13% of Texas’s overall wind generation, accounted for as much as 70% of the wind-generated electricity being provided during peak hours.

The reason for this is that winds are often low in west Texas, where most of the state’s wind farms are located, on very hot days, while ocean breezes blow more strongly.

Generation from offshore and coastal land-based wind matches up well with summer demand peaks.

Again, this is a phenomenon that has been predicted by studies. During a heat wave in the Northeast in July, Cape Wind, the company that hopes to install a large offshore wind farm off Cape Cod in Massachusetts, said its meteorological data showed the project would have been producing at full capacity during peak demand hours.

The Texas experience bears that out, with ERCOT CEO Doggett telling the Austin American-Statesman, “We’d love to have more development of coastal wind. And we’re hoping their ability to generate during the peak hours may encourage more development in that area.”

Denise Bode is CEO of the American Wind Energy Association 

My wind video from last year explains more about the issues of intermittence and reliability of wind power.

13 Responses to “Texas Drought Shows Windpower Vital, Reliable”

  1. […] already reported on how Texas fossil fuel plants have been hampered by high heat conditions, and how wind energy has been vital and reliable, producing more than the expected amount of energy through the unprecedented drought. An even more […]

  2. […] wind farms have helped the power grid in meeting soaring peak demand on hot days, as reported at climatecrocks.com. They make the grid more stable, not less as asserted by anti-wind […]

  3. Bruce Miller Says:

    Wind – like Solar, Wave, Hydro, Tidal, Geothermal, Bio-mass, anaerobic sewage and manure digestion for methane and top soil enhancing fertilizers, all, for local, communal energy, not for adding to the current ridiculously wasteful grid, and definitely not to support the current ‘American Dream’ lifestyle that even Americans can no longer create enough to afford! Paradigm shift America suffers through at the present supurred on by the astounding demads on the individual worker’s paycheck.
    Expect gut wrenching change in America as she struggles “Status Quo” against the “New World Reality” in this Post Asian expansion era.

  4. solvingtornadoes Says:

    Why Wind Farms Cause Drought


    Wind farms destroy the pathways in the atmosphere that storms employ to become established:

    Storms (all storms) involve the emergence of conduit-like structures (ie. jet streams, tornadoes) that transport energy from high (in the form of low pressure) and lift moist air up, one result of which being rainstorms. Starting from the jet streams that run along the top of the troposphere, these conduits grow downward to initiate storms. But they can only do this if the prerequisite factors underlying their growth are present. There are, basically, two prerequisites: 1) Long smooth distinct boundary layers between dry and moist bodies of air, and 2) Energy.

    Here’s the problem. Wind farms introduce turbulence that destroys the smoothness, length, and distinctness of boundary layers between bodies of moist air and bodies of dry air and they remove (harvest) energy.

    Are you convinced? No. I don’t expect you to be. Meteorologists have made such a mess of the science that there is little chance anybody can filter out the nonsense. Don’t take my word on it. Instead I suggest you take a look at the maps that show an unusually high degree of correspondence between the location and timing of the drought with construction of wind farms, especially in Texas and California.

    • dumboldguy Says:

      WHOA! Another singer of a one-note song appears on Crock—-James McGinn (aka Claudius Denk), and the title of his tune is “saving tornadoes”. DO go to his website and take a look at his fractured physics. Also note his fair. balanced, and rational approach to science, as seen in this direct quote:

      “What is the difference between a Meteorologist and a climatologists (sic)? Just scale. Climatologists lie about things on a long term scale. Meteorologists lie about things on a short term basis. Beyond that they are identical”.

      It’s also fun to see James engage our old friend Dave Burton in a battle of wits. We already know Dave is only half-armed.


      Another quote: James says, “I am proud to say that I have been blocked on an AGW propaganda website called Resilience”. I wonder if that’s the only one?

  5. Alec Sevins Says:

    It’s easy to cherry-pick a situation where the wind happens to be blowing at an opportune time, but there are many times (like an infamous winter in the UK) when the wind dies and people still need power. Wind is highly intermittent, not some epitome of a reliable savior.

    Also, that photo of the bird is ironic and you won’t see wind propaganda showing them close to turbines. Yes, we all know “cats kill more birds,” but not the same types of birds (like eagles) and wind power keeps trying to expand into migratory routes. One must do a lot of cherry-picking to justify such large intrusions on the landscape and seascape.

    Another breed of people do a lot of cherry picking and the wind crowd could be its cousins, save for the “green” label they apply to themselves.

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