this post was submitted on 24 Sep 2023
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Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.

As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades: Graph of temperature as observed with significant warming, and simulated without added greenhouse gases and other anthropogentic changes, which shows no significant warming

How much each change to the atmosphere has warmed the world: IPCC AR6 Figure 2 - Thee bar charts: first chart: how much each gas has warmed the world. About 1C of total warming. Second chart: about 1.5C of total warming from well-mixed greenhouse gases, offset by 0.4C of cooling from aerosols and negligible influence from changes to solar output, volcanoes, and internal variability. Third chart: about 1.25C of warming from CO2, 0.5C from methane, and a bunch more in small quantities from other gases. About 0.5C of cooling with large error bars from SO2.

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Rooftop solar 'cannibalising' power prices as Australian generators pay to stay online - ABC News (www.abc.net.au)
submitted 11 months ago by sbv to c/[email protected]
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  • Wholesale power prices are increasingly turning negative at times of high solar output
  • Observers say rooftop solar is "cannibalising" electricity prices and hitting large-scale solar hard
  • There are calls for storage and greater daytime demand to help soak up solar production
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[–] [email protected] 41 points 11 months ago* (last edited 11 months ago) (3 children)

The electricity network should be a public utility. Taxes should be used to make and maintain a network, not make a profit. If people can contribute to the network and decentralise generation, it shouldn't be a problem. It being a problem is an indication of a broken system.

It noted utility-scale solar plants were having to pare back generation or switch off entirely during such periods to avoid having to pay to maintain production.

Bro, generate hydrogen with that abundant energy! Then when solar can't provide energy (at night) and at the same time wind energy isn't available, you can generate energy from the hydrogen. Hell, with that abundant energy, you could create a whole hydrogen economy and tank the petrol economy - make it completely obsolete. How the fuck is this a problem?

[–] [email protected] 4 points 11 months ago (4 children)

Hydrogen is hard and dangerous to store. Not only does it leak easily, it can also explode. You don't want hydrogen tanks in your neighborhood.

[–] SuperCub 4 points 11 months ago

They already have cars storing and running on H2, so I don't think it's the problem it once was. See the Toyota Mirai.

[–] [email protected] 1 points 11 months ago

Store it as a solid, no worries

[–] [email protected] 2 points 11 months ago

Or use the energy to desalinate sea water or any of a multitude of other uses for spare capacity.