The small change that made a big impact (compacompila.com)
2 points by mparnisari 24m ago 0 comments
Jesus is the best startup founder (banrovegrie.github.io)
2 points by banrovegrie 48m ago 3 comments
Texas electricity maximum renewables record
33 martinpw 50 6/17/2025, 7:40:31 PM gridstatus.io ↗
https://www.gridstatus.io/live/ercot?date=2025-06-17
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With power prices negative, I guess those big Bitcoin mines out in West TX are quite profitable burning off our excess power...
FYI, there actually is a city called West, so it would usually appear as "West, TX" or West TX". It's actually between Dallas and Austin though and not in the west.
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it happened in 2011, too, and all the warnings and published recommendations as a result of that storm weren't acted upon.
https://www.npr.org/sections/live-updates-winter-storms-2021...
https://www.nytimes.com/2021/02/17/climate/texas-blackouts-d... | https://archive.today/FOUK8
https://www.ucs.org/resources/gas-malfunction
Edit:
On base load generation:
https://www.google.com/search?q=base+load+myth
If you want something to compensate for intermittency, nuclear seems like the worst option. It implies you have nuclear plants sitting offline until needed, or being ramped up and down. My understanding is that you really want to run nuclear plants 24/7 at full output.
To my understanding the per-kWh cost of the fuel for nuclear isn't the real expense, but smarter minds in the subject please feel free to correct me.
The problem wasn't the renewables going offline, they dipped in production due to not being winterized, but that was well modelled and they actually outperformed their expected output.
The problem, as mentioned in toomuchtodo's links, was the nuclear and gas plants going offline because they weren't winterized and trying to take the grid down with them. The mix was fine, but the market rewarded the cheapest preparations and the state government didn't step in to intervene.
https://news.ycombinator.com/item?id=41787696 (previous comment I wrote with citations)
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https://www.canarymedia.com/articles/energy-storage/chart-us...
This year EIA again expects Texas to outpace California, only now by an even wider margin than last year. The Lone Star State could build nearly 7 GW of utility-scale storage in 2025 compared to California’s 4.2 GW.
Sadly, getting an HVAC person willing to install a heat pump system in Texas seems to be quite a challenge.
Some of the highest peak energy usages the state has ever seen have been in the winter. For instance, that 2021 winter storm absolutely crushed the records of energy usage in the state before it all crashed, and every year after that has seen even higher amounts of usage in the winter since.
China launches world’s first grid-forming sodium-ion battery storage plant - https://www.ess-news.com/2025/06/03/china-launches-worlds-fi... - June 3rd, 2025 ("With a total investment of over CNY 460 million [$63.8 million] and occupying 34k square metres, the Baochi plant is designed for an installed capacity of 200MW/400MWh. Based on a dual daily charge-discharge cycle, it can regulate up to 580 GWh annually — enough to power 270,000 households, with 98 per cent of its energy sourced from renewables. The facility supports more than 30 local wind and solar power stations, alleviating the impact of intermittent supply and facilitating the integration of high shares of renewables into the grid.")
China Already Makes as Many Batteries as the Entire World Wants - https://about.bnef.com/blog/china-already-makes-as-many-batt... - April 19th, 2024
Some of the ideas like using energy to pump water uphill into a reservoir and then generating hydro power when you release it back down into a lower reservoir are interesting in terms of reliability, but they aren’t great for efficiency (hydro generation inefficiency). You can do that without having a natural river, which reduces some of the ecological issues with dams.
(And also if they drop to 0% for an occasional hour then you can use batteries. If once every five years they drop to 0% for two weeks then you absolutely need to have something else that can fill that gap.)
Solar output drops during the winter, not wind.
that said, economics pose a major problem to building more renewable energy capacity. No one will build a wind farm if it is not profitable. Profitability is a major question if average electricity prices drop.
Or instead, the federal regulations should obviously be fixed.