this post was submitted on 31 Aug 2024
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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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These school buses no longer belch pollution. They also give the grid a break. (www.motherjones.com)
submitted 2 months ago by jeffw@lemmy.world to c/climate@slrpnk.net
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[–] JohnDClay@sh.itjust.works 5 points 2 months ago* (last edited 2 months ago) (7 children)

Would it help that much on weekdays? It looks like peak loads are right about when the buses would be busy driving. But it would still be usefull for weekends I'd think.

duck curve

Edit: looks like it changes quite a bit seasonally.

Curves

Edit 2: here's solar and wind supply https://www.researchgate.net/publication/268074971_The_New_Hybrid_Model_of_Compressed_Air_for_Stable_Production_of_Wind_Farms

[–] Galapagon@sh.itjust.works 4 points 2 months ago (1 children)

They can recharge mid-day when generation is highest, which helps balance supply, and in theory they could still help in the afternoon after they finish their routes say 5/6pm

[–] JohnDClay@sh.itjust.works 2 points 2 months ago

Yeah you'd definitely charge mid day, but you don't need reverse charging for that. I'd think you'd size the battery just large enough for your route. So there wouldn't be much energy left over to put into the grid. Maybe when the bus is new or when they don't need to run the AC or heading you'd be able to put more energy back into the grid?

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