Texas to spice up grid resilience with extra wind & photo voltaic, in accordance with Clear Technica – Watts Up With That?

Visitor “I actually couldn’t make this type of schist up if I used to be making an attempt” by David Middleton

Reporting from Ice Mud Station Dallas… The pool is now ice-free for the primary time on report (the report began very not too long ago… ;).

Texas to Add 35 Gigawatts of Wind & Photo voltaic in Subsequent three Years — Boosting Grid Resilience
By Zachary Shahan
Printed 16 hours in the past

Clearly, the information story of the week — effectively past CleanTechnica — has been Texas and a few neighboring areas freezing over and shedding electrical energy. The overwhelming majority of the ability vegetation that went offline had been thermal energy vegetation (largely pure fuel). They weren’t outfitted sufficient for the chilly. Plenty of wind generators had been additionally down as a result of nobody had purchased the “cold-weather bundle.”

[…]

CleanTechnica

To the extent Texas is including wind & photo voltaic to the grid, these plans had been made lengthy earlier than Winter Storm Youthful Dryas. The notion that that is for the aim of “boosting grid resilience,” is completely fracking retarded.

Photo voltaic is flat-out not a think about Texas’ electrical grid. Whereas wind is a key part of our grid, producing 20-24% of our electrical energy over current years. It completely failed over the previous 10 days. As temperatures dropped beneath regular within the DFW space on February 7, wind output dropped from 35-65% of capability to 10-30% from February 9-18. Over the identical time interval coal and pure fuel energy vegetation ramped as much as almost full capability in a short time. As of Sunday February 14, the system was functioning usually. As temperatures plunged from 20 to 40 °F beneath regular within the DFW space, some thermal energy vegetation went offline for a wide range of climate and demand surge associated points and by Monday morning ERCOT was in full emergency mode.

DFW temperatures (dashed traces) and wind, pure fuel and coal era as a share of estimated capability.

The graph above is preliminary, a “work in progress.” I’m nonetheless engaged on gathering extra detailed information on capability by gas kind. Nevertheless, it clearly demonstrates that extra wind era capability would have been as ineffective as mammary glands on a bull.

ERCOT’s single largest failure was the dearth of dependable backup capability for wind energy… ERCOT anticipated the wind energy to fail underneath these situations. It seems to me that the one means ERCOT might have made it by way of this unscathed, would have been for pure fuel, coal and nuclear energy to have delivered 80-90% of capability for 7-10 days throughout record-cold climate (20-40 °F beneath regular within the DFW space) with a system geared towards hotter than regular climate. This was not a practical expectation. ERCOT additionally didn’t be sufficiently proactive in implementing rotating outages and once they did, they had been unable to adequately rotate the outages.

Concerning the “cold-weather bundle” horst schist…

Why wind generators in New York maintain working in bitter chilly climate not like those in Texas
Up to date Feb 19, 2021

Syracuse, N.Y. — Texas Republicans had been fast responsible the state’s wind generators for the large energy outages that hundreds of thousands of Texans skilled this week throughout an uncommon blast of chilly climate.

Texas leads the nation in wind energy, with almost 15,000 wind generators producing 23% of the Lone Star State’s electrical energy final yr. Most of the generators shut down when the chilly descended on Texas.

[…]

However we couldn’t assist however marvel why wind generators in cold-weather states like New York can function within the winter with seemingly little hassle when their counterparts in Texas can’t.

[…]

“There are a number of chilly climate and anti-icing applied sciences which can be used on wind generators within the coldest areas,” she mentioned. “These applied sciences assist forestall the buildup of ice on turbine blades, detect ice when it can’t be prevented, and take away ice safely when it’s detected.”

[…]

The sensors may even inform which blades have ice on them and which of them don’t. When ice is detected, heating components contained in the blades activate to soften the ice.

For security causes, the generators are shut down whereas the heating components soften off the ice, Kurt mentioned. That means, there’s no likelihood of ice flying off spinning blades, doubtlessly damaging the generators or, worse, putting somebody on the bottom, she mentioned.

“We’d quite the ice drop beneath the turbine,” she mentioned.

As soon as the ice is eliminated, the generators are turned again on and the blades can safely spin within the wind once more.

In Texas, wind generators aren’t outfitted with such de-icing packages as a result of operators there by no means anticipated to want them, Kurt mentioned.

“Generators in Texas are constructed for the kind of temperatures they normally get in Texas, the place it’s 110 levels, not 10 levels,” she mentioned. “It’s a price factor.”

Rick Moriarty covers enterprise information and shopper points. Syracuse.com

So… Heating components (which require electrical energy) soften the ice and the wind generators must be shut right down to deice them? Perhaps that’s why New York’s wind generators generate virtually no electrical energy all winter lengthy.

EIA HOURLY ELECTRIC GRID MONITOR

In contrast to New York, Texas doesn’t have a pleasant, regular, winter electrical energy load. Our load varies fairly broadly and our wind generators can generate over 40% of our electrical energy on favorable days. Even on the peak of our current deep freeze, Texas wind generators generated extra electrical energy than New York’s. There are days when Texas wind generators generate extra electrical energy after which all of NYISO.

EIA HOURLY ELECTRIC GRID MONITOR

Texas must winterize no less than some portion of its most dependable era capability: pure fuel, coal and/or nuclear. Texas doesn’t must emulate what doesn’t work in New York.

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