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Comment Coal peaked in 2007, now comparable to early 1970s (Score 4, Informative) 101

Yes coal has slightly gone up in 2025, but it's dropped so much from the peak usage in 2007 that current usage is comparable to the early 1970s.

From the chart U.S. electricity generation by major energy source, 1950-2025 on Electricity generation, capacity, and sales in the United States:

1971 = 713 Billion kWh
1972 = 771 Billion kWh
...
2007 = 2016 Billion kWh - peak usage
...
2024 = 652 Billion kWh
2025 = 737 Billion kWh - lower than 1972

Note: use Click to enlarge below the chart to get a larger view, then mouse over the chart to see detailed numbers for each year.

Comment Doom (Score 4, Interesting) 72

Super El Niño, AMOC shutting down. Mauna Loa CO2 shutting down reporting 432 PPM before we shut them up. The mighty Colorado river died. We drank it up. India has been over 95F for months, and parts are becoming uninhabitable reaching 114F.

Dinosaurs had 165 million years. Sea turtles 260 million. Genus Homo, 2 million. Sentience may be self defeating, which solves the Fermi Paradox.

Comment Tradeoff is non-free times are more expensive (Score 1) 103

So the plans may not be worth it if you cannot shift usage. I was on a free-nights plan in 2018 and was able to drop my bill by 20% vs the regular rate plan by having my Model 3 charge in the middle of the night and by using the delayed start feature on my washer and dishwasher.

I moved off the free-nights plan in 2019 after installing solar and switched to a net-metering plan, which was awesome.

The net metering plan's now gone. My current plan has time-of-use rates of $0.127/kWh from 6pm-9pm, $0.09/kWh all other times, and I get paid market rates for excess solar. Market rates aren't worth as much as net-metering, so I charge up a Powerwall during the day and run the house with it from 6pm-9pm. I also have my Model 3 configured to charge only on excess solar, which works well for me because I work from home.

Comment Re:Why the myopic obsession with O2? (Score 1) 25

There's a lot of speculation about life as we don't know it. And that's what it is: speculation. While there are microbes that don't rely on oxygen, and one animal, they are utterly dependent on environments that do require oxygen. So no abiotic life origins here.

Without knowing for sure what to look for in a chlorine based life form even with it live in front of us, performing the forensic search with the body cold billions of years is all but impossible. We will get there some day but people are looking for signs unambiguous, and that means life as we know it.

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