Post #4370476
2026-08-04 08:44 UTC
Now because my automation consumes the live data from WITS (NZX) at the update intervals set by them it meant it;
Sent me a "What the fuck just happened to the price" notificationSwitched the battery into forced exportSent me a Home Assistant notification with an actionable "Reduce Load" button which I prodded so the heat pump (which was idling) went off)
#AlexsPostsAboutPower
Replies (1)
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@alex@fedi.smith.geek.nz 2026-08-04 08:56
The generation from Coal sank to 0 MW in the delayed data. Diesel/Oil picked up which if I recall correctly is the most expensive generation on grid. Because our wholesale price is set by the cost of the most expensive generation type needed at that instant the entire wholesale price rockets up to that high price instead of being a bit more of a generation average. It's one of the weird ways that power shortages (though this was an outage/UFE) perversely benefits the gentailers who aren't building more cheap generation - they tend to own the high price setters. #AlexsPostsAboutPower