Environment & Energy
Related: About this forumTexas grid faces winter after failed attempt to get more power online
Source: Texas Tribune
Texas grid faces winter after failed attempt to get more power online
Industry experts continue to argue over whether the electricity market in Texas needs to change to make the grid more reliable in winter and summer.
BY EMILY FOXHALL
DEC. 1, 2023
1 HOUR AGO
After saying there was an unacceptable risk of a power grid emergency during a strong winter storm, the Texas grid operator's plan to prepare the state better for extreme winter weather failed to take off this fall.
In early October, officials at the Electric Reliability Council of Texas, which oversees the states main power grid, announced that they wanted more power plants available to run this winter. They explained that demand for electricity had grown overall, and past extreme winter storms showed how high demand could spike during frigid temperatures.
ERCOTs plan to entice companies to make more power available involved asking if they were willing to bring some shuttered gas- and coal-fired power plants back online and, if so, what it would cost ERCOT.
As it happened, not a single company thought reviving an old power plant made sense, and the Nov. 6 deadline passed without a single proposal to revive a power source for the winter.
-snip-
Read more: https://www.texastribune.org/2023/12/01/texas-power-grid-ERCOT-winter-2023/
czarjak
(12,413 posts)RainCaster
(11,545 posts)It appears that ERCOT is unwilling to do anything to improve their grid. No new power sources, no rebuilt sources, and no changes to the delivery system. Spend. No. Money. That's the plan. I hope it works out for them.
Think. Again.
(17,987 posts)...have made a lot of money available for new clean energy production.
Just sayin'.
progree
(11,463 posts)Jerks. No doubt for ideological reasons.
All emphasis added by Progree
ETA - nowhere in the article does it indicate what the energy storage capacity (MWH) of these batteries are. When looking at articles on battery projects, all's I've seen are 4 hour batteries -- i.e. enough MWH storage capacity to run at full MW power capacity for 4 hours, or, for example, half power for 8 hours, etc. With one experimental project that I know of with a 100 hour battery made with different technology.
marble falls
(62,063 posts)... battery storage might make sense for a local outage of only a couple of days, but it just is not enough. And wind represents only about 27% of electric generation in Texas.
In August 2019, the Texas electric grid reached a peak demand of 74,820 MW the highest value ever recorded. Similar peaks were reached in August 2020 and 2021, but the Electric Reliability Council of Texas (ERCOT) had more generation capacity available to meet them.
Screw Abbott, ERCOT: connect to the national grid.
progree
(11,463 posts)I kind of was thinking in a relative sense compared to what was there 3 years before.
I was an engineer in the generation supply and transmission supply planning departments at Xcel Energy (in Minnesota) and superintendent of operational planning, so I'm well aware of the size of grids and what 10,000 MW means -- To me that's the capacity of 10 Prairie Island nuclear plants (at the time 2 units of 500 MW each), nothing to sneeze at, and while a mere 1/7 of ERCOT's peak demand, it's hardly insignificant.
Although from the article it's "up to 10,000 MW by the end of 2024" and later in the article it said its unlikely to reach that level (by the end of 2024). And 4 hours (if these are 4 hour batteries) is not a lot of storage (whereas Prairie Island generates its capacity 24/7/365 with more than 90% capacity factor). And at any given moment, only a certain percentage of the battery's capacity is available, since batteries aren't kept at 100% charge waiting for some bad event to happen. So at any given moment some batteries will be partly or completely drawn down.
I wouldn't say the batteries are just useful for a "local" outage. They can help the grid as a whole recover from a plant tripping offline until there's time to get other generation going. (Hopefully there will be other generation offline that can be started and put online -- or already online whose output can be ramped up -- that's usually the case, but might not be the case in Texas during peak conditions).