Greg Barton
gregorybarton.bsky.social
Greg Barton
@gregorybarton.bsky.social
Mod of reddit’s r/nuclear and r/SaturatedFat. Interest in AI, martial arts, human biochemistry, nutrition, nuclear power.
Rarely mentioned fact: all of that battery capacity actually costs a lot of energy. www.caiso.com/todays-outlo... Look at the very negative "daily production" values.
November 15, 2025 at 10:39 PM
September 29, 2025 at 5:33 AM
You don't say...
September 29, 2025 at 5:32 AM
And not unlike California I'm sure those batteries cost a lot of electricity to run. www.caiso.com/todays-outlo... (Just to compare, the graphic shows batteries in CA needing the full output of a nuclear plant for 12 hours just to shift power for the day. Quite inefficient.) That won't scale.
September 10, 2025 at 2:55 AM
Uruguay has a lot of hydro capacity. It balances out the wind and solar intermittancy. app.electricitymaps.com/zone/UY/72h/... But what if you don't have those hydro resources?
September 9, 2025 at 11:00 PM
France has a good solution. They have a mix of wind, solar, nuclear, and hydro. app.electricitymaps.com/zone/FR/72h/... Appears to be working well.
September 2, 2025 at 11:54 PM
"Unreliable" is measurable. "Bad" is a value judgement.

All countries you mention also have 100% fossil backup.

France has a good mix of zero carbon sources. Look at all of France's neighbors. They're generating far more carbon per unit of energy generated. app.electricitymaps.com/zone/FR/72h/...
September 2, 2025 at 9:32 PM
Some countries will have to. Germany, for example, does not have the hydro resources that Norway has. app.electricitymaps.com/zone/DE/72h/... So their backup to wind and solar is coal and gas.
September 2, 2025 at 5:43 PM
Not with batteries.

Norway isn't really storing. It's ramping hydro up and down. And their hydro generation absolutely dwarfs wind. app.electricitymaps.com/zone/NO/72h/...
September 2, 2025 at 5:41 PM
Norway has lots of hydro. app.electricitymaps.com/zone/NO/72h/...
September 2, 2025 at 5:39 PM
Here's wind for all of Europe. Notice the periods in winter where it disappears. (One highlighted.)
September 2, 2025 at 4:02 PM
The sun available reduces drastically in the winter. And the wind can stop blowing for a week or more. This has been observed for many years. Here's the solar production for all of Europe for the last year. What's happening in winter?
September 2, 2025 at 4:01 PM
California, again a mix of zero carbon sources. app.electricitymaps.com/zone/US-CAL-...
September 2, 2025 at 2:50 PM
Spain is certainly better. They have a good mix of zero carbon sources.
September 2, 2025 at 2:49 PM
Mongolia is primarily coal powered. THat's an odd example to use. app.electricitymaps.com/zone/MN/72h/...
September 2, 2025 at 2:47 PM
Contributing is not the same as being a reliable source. You want to talk about Arizona? app.electricitymaps.com/zone/US-SW-A...
September 2, 2025 at 2:44 PM
This has been tried, and it's been a failure for a decade so far. app.electricitymaps.com/zone/ES-CN-H...
August 27, 2025 at 10:33 PM
www.iaea.org/newscenter/p... They've been in cold shutdown for over a year, fuel being actively cooled. Meltdown is not possible anymore.
July 19, 2025 at 12:23 AM
We've had these kinds of claims for years for other islands, like El Hierro, Spain. Some days it's great. Other days....no... app.electricitymaps.com/zone/ES-CN-H... They claim it's "100% renewables" because some days it doesn't use fossil fuels. :)
July 18, 2025 at 4:49 PM
Their next door neighbor that shut down their nuclear plants? Not so much... app.electricitymaps.com/zone/DE/72h/...
July 18, 2025 at 2:23 AM
Fine by me. France is a great model, not just of nuclear, but of a grid with mixed low carbon sources working great together. app.electricitymaps.com/zone/FR/72h/...
July 18, 2025 at 2:22 AM
All of Europe. High demand, low wind generation. Good times.
July 13, 2025 at 2:21 AM
Until it isn't. :) (Germany last year.)
July 13, 2025 at 2:12 AM
And they have fairly regular dunkelflaute. explore.openelectricity.org.au/energy/sa1/?...
July 13, 2025 at 2:05 AM
Emissions in South Australia are going up. app.electricitymaps.com/zone/AU-SA/a...
July 13, 2025 at 2:03 AM