Climate, in brief

At 7:56am on 22 July, sensors picked up a major transmission disturbance in Northern Virginia. [1]

More than 3 GW of demand - about 3% of everything the system was serving at that moment - went offline within seconds as data centres transferred to backup power. [1]

Nothing broke. Every facility did precisely what its protection settings told it to do, at the same instant, because they are all set the same way. [1]

The grid operator said there was no reliability impact and the utility said conditions were stabilised within minutes. Both are true, and neither is the point. [1]

The point is that a power system is built for the supply side to fail. Demand is the thing that is supposed to stay put. [1]

Texas has already logged eight events between November 2020 and March 2023 where a fault near one big industrial load cut demand by 400 to 700 MW. [1]

In December 2022 a breaker failure in West Texas took about 1,560 MW of demand off in one go, of which oil and gas facilities accounted for roughly 420 MW. [1]

Ireland's operators have documented four data-centre demand drops on their 220-kV network: 74 MW, 204 MW, 321 MW and 387 MW - and the size is climbing each time. [1]

Ireland has drafted an actual rule: a facility could drop to backup during a voltage dip, but would have to restore at least 90% of its demand within 500 milliseconds. It is still under consideration. [1]

Almost every public argument about large loads is about whether they can be connected - the generation, the wires, who pays. Almost none of it is about how they behave once they are running. [1]

A data centre can buy its own generation, fund the network upgrades, meet every connection obligation, and still present a risk nobody has modelled. [1]

The largest US grid has separately watched its congestion costs reach $6bn this year, and now wants data centres to bring their own power or face cutoffs. [2][3]

Global electricity demand is forecast to grow 3.6% a year to 2030, and New York's grid is already struggling with the heat before any of that arrives. [7][8]

The same grid that lost 3 GW in seconds has just cleared more than 50 GW of solar, wind and batteries to connect - capacity that will only help if it actually gets built. [4]

Why it matters. The number to watch is not the next outage but whether any regulator outside Ireland writes a behaviour rule: until one does, every new connection adds capability to disappear that nobody has measured.

Ofgem will raise the energy price cap by 4% from October, blaming higher wholesale gas prices from the Iran war. Household energy debt has already climbed about 500m pounds in a year to a record 6bn at the end of June, and the industry body expects 7bn by December. [9][10]

Why it matters. The rise more than wipes out the new government's VAT cut on electricity, which was meant to give households breathing space. The debt is where the strain actually shows - months after the price moved. [10][11]

The IEA says the Middle East crisis has dealt a major supply shock to global gas, reversing an easing that had been under way. Europe and Asia are responding by accelerating renewables. [12][13]

Why it matters. The fastest route from a strait nobody in Britain can find on a map to a bill on a British kitchen table is about six weeks long.

In Ohio, clean-energy and good-government groups want action against entities filing seemingly fake public comments against clean energy projects. In Texas, the elected oil and gas regulators voted 2-1 to drop the guaranteed public-comment slot from their monthly meetings, replacing it with listening sessions the commissioners do not attend. [14][15]

Why it matters. People travel hundreds of miles from the Permian Basin and the Gulf Coast for three minutes at that microphone. Flooding a process and closing a process end in the same place.

New analysis finds climate change now exposes 580 million children to 20 additional heat-stress days a year. Chicago emergency rooms report a toll going well beyond heatstroke, S&P warns European heatwaves are starting to threaten insurers' earnings as the population ages - and solar output is credited with carrying Europe's grid through the worst of it. [16][17][18][19]

Why it matters. Insurers are pricing the heat before health systems are counting it. And the weather making the heatwave worse is the same weather getting the grid through it.

Battery-electric vehicles topped 25% of the European market in July, driven by France and Germany. Australia's EV sales have reached 23.4% of new cars and its charging network is already struggling to keep pace. Geely is preparing a 500 Wh/kg solid-state cell - roughly twice the energy per kilogram of today's best packs. [20][21][22]

Why it matters. The bottleneck has moved from the car to everything around it: chargers, grid connections, and who pays for both.

Nevada has sued the federal government over the Colorado River restrictions, arguing officials did not impose mandatory cuts on the upper-basin states. [23]

Why it matters. The first state to move from objecting to litigating usually sets the venue for everyone who follows.

Analysis published this week finds the climate damage from new North Sea fields would obliterate any economic benefit, calling the bills-and-security case a delusion - as Britain's new prime minister decides on Rosebank. Meanwhile Washington has spent billions boosting gas exports and more fracking with it. [24][25][26]

Why it matters. Both governments are making the same bet in opposite political directions, and neither has published the arithmetic the other side is using.

East Coast offshore wind projects - the region's best answer to its own demand growth - are stalling under federal opposition and economic headwinds, while the administration pours money into batteries it will not describe as clean energy. [27][28]

Why it matters. Storage is being funded because it matters to AI and defence. The label decides the budget line, not the physics.

Utilities using conflicting demand forecasts to justify both gas and electric investment are pushing bills up on both. America's hydropower is weakening well beyond the drought-hit West, and the US-Canada trade war now threatens cross-border electricity imports and prices. [29][30][31]

Why it matters. Three different ways for a household bill to rise that have nothing to do with how much power that household used.