2,990 karma · joined November 21, 2008
2. Peak curtailment is mid-April through June: peak hydro and solar production, plenty of wind, and little HVAC load: http://www.caiso.com/informed/Pages/ManagingOversupply.aspx
3. Yes, you can see that batteries are charging from solar on CAISO Today's Outlook.
4. There is an enormous amount of home solar which shows up as a drop in "Demand": http://www.caiso.com/TodaysOutlook/Pages/index.html#section-... . Set the date widget to April 8, and notice "demand" rise to 20GW at the 11:15 partial eclipse peak and drop almost 6GW over the next couple hours. Figure > 10 GW of peak output from home solar
5. Grid and home solar together (> 25GW) are roughly comparable to total load (~26GW on this cool spring day).
6. Neither the transmission nor the distribution networks can efficiently send supply to load; both have bottlenecks.
7. This waste is an opportunity for more batteries, grid-scale electrolysis, etc.
8. A GWh is worth roughly $50,000. In the context of California's (~$4T/year ÷ 365=)$10B of daily economic activity, wasting $500k is not that big a deal. Particular matter from the state's natural gas plants kills many people a day.
If you scroll to the "Declaration of interests", you will see that the authors are heavily entangled with the drug industry. That doesn't mean the study is wrong, but ...
HN community, why can't we regularize, if not automate, the very simple process of linking to studies rather than thin rewrites of studies? When a study assesses a commercial endeavor, why can't we regularize tagging it with the author's interest in that endeavor?
Maybe it's time to let go of the '00s.
"Based on the suggested cut-off scores from 31 to 33 (García-Manglano et al., 2021; Kwon et al., 2013), between 29% and 31% of the sample would be considered at a high risk of addiction. Similar prevalence rates have SEX, AGE, AND SMARTPHONE ADDICTION 6 been found in samples under 25 years old (14 to 31%, Sohn et al., 2019) and in a global survey of problematic smartphone use in adults with an average age of 26 (28%, Kalaitzaki et al., 2022)."
2. Relative to their importance in 2023, HN disproportionately upvotes headlines mentioning Mozilla, Linux desktop frameworks (#1 recently!), and other technologies that were extremely important in 2003.
3. Based on that (imperfect) evidence, my hypothesis is that HN voters are heavily drawn from people who have been hackers for two decades are more *and who haven't fully updated their perspectives on software*. An implication of this hypothesis is that there are some topics which are underweighted on HN relative to their importance. I do not know how to test this hypothesis.
Hypothesis: HN story up-voters are heavily drawn from Free / Open Source Software folks interested in issues that were broadly discussed in "tech" two decades ago (Linux for the desktop!) and are much less broadly discussed today.
* https://www.inventionofscience.com
* https://en.wikipedia.org/wiki/The_Structure_of_Scientific_Re...