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Jake Davis-Hansson

@jakedh.bsky.social

Turning your EV off and then on again

24 Followers  |  228 Following  |  10 Posts  |  Joined: 25.11.2024  |  1.7032

Latest posts by jakedh.bsky.social on Bluesky

This is what people don’t understand. All countries can produce electricity, many countries have to important refined oil products like gasoline and diesel using hard currency which is in limited supply.

One in four vehicles sold this year will be EVs.

25.06.2025 04:48 — 👍 219    🔁 69    💬 6    📌 6
Sending electricity prices to devices is not sufficient Network protocols for distributed energy resources - OpenADR, Matter, Energy Protocol, EEBus etc - want to send prices to devices. That’s not good enough.

More detail in this writeup: climate.davis-hansson.com/p/price-sign...

24.06.2025 13:12 — 👍 0    🔁 0    💬 0    📌 0

If all of them instead had actually *participated* in the market, perhaps the price wouldn't have gone negative at all.

Anyway - we need these new protocols to adopt better signals than infinite-volume price lists, or we'll see much more of this kind of thing.

24.06.2025 13:12 — 👍 0    🔁 0    💬 1    📌 0

I can't say how many of those PV inverters were passive followers of the price signal vs how many were actually involved in sending wholesale market bids.. but I'd imagine most of them were passive followers.

24.06.2025 13:12 — 👍 0    🔁 0    💬 1    📌 0

This kind of "mass distribution of an infinite-volume price list" is how all the major contenders for distributed resource control expects *much* larger fleets of assets to be controlled: #openadr #matter #eebus #energyprotocol etc etc; it's all price lists with no volumes attached

24.06.2025 13:12 — 👍 0    🔁 0    💬 1    📌 0

..which would've been fine if the assets procured by the TSO to stabilize those oscillations had delivered as bid, which they didn't -> voltage spikes in distribution -> coordinated inverter shutoffs per regulation -> blackout

24.06.2025 13:12 — 👍 0    🔁 0    💬 1    📌 0

Power outage in Spain appears partially caused by "prices-to-devices" - PV inverters passively following the spot price - en-masse disconnecting when price went negative, which then caused oscillation in synchronous generators...

24.06.2025 13:12 — 👍 0    🔁 0    💬 1    📌 0

What’s nuts about these though is: Because there are no smart meters in DE apartments, this shows up as imbalances that need TSO intervention. If we were to account for this production we’d get in huge trouble; need to pretend it doesn’t exist and buy GWhs of gas production that isn’t needed

12.06.2025 18:40 — 👍 0    🔁 0    💬 0    📌 0

Nukes are primary driver of cost of standby balancing power for a reason, large single points of failure need large idle spare capacity.. but can’t have been just a lost nuke, that’s supposed to be fine at any time?

29.05.2025 22:07 — 👍 0    🔁 0    💬 0    📌 0

Aha, I think the graph itself is from the Economists “Sun Machines” feature: archive.is/ByJMh

19.02.2025 21:53 — 👍 0    🔁 0    💬 1    📌 0

The sources are in the graph, on the bottom. IEA, BNEF

18.02.2025 22:19 — 👍 0    🔁 0    💬 1    📌 0

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