A reserve margin is the cushion of extra capacity above expected peak demand. Here is how planners calculate it and why fast load growth puts pressure...
Freezing temperatures can knock generators offline at the worst moment. Here is a plain-English look at the steps power plants take to stay running through a...
Large power transformers are custom built, heavy and slow to manufacture. Rising demand has stretched their supply chain. Here is why that matters for new data...
A microgrid is a local energy system that can disconnect from the main grid and keep running. Here is how they work and why data centers...
An uninterruptible power supply keeps servers running in the brief gap before backup generators take over. Here is how UPS designs work and why AI loads...
Most large data centers keep rows of diesel generators ready to start if grid power fails. Here is how they are sized, tested and fueled, and...
PUE is the most widely cited data center efficiency metric. Here is how it is calculated, what a good number looks like in general terms, and...
California's grid operator gave the world the duck curve, a chart of how solar reshapes daily demand. Here is what it shows and how batteries have...
Most of Texas runs on its own grid, largely disconnected from the rest of the country. Here is how ERCOT works, how its market differs, and...
PJM runs the grid across much of the Mid-Atlantic and parts of the Midwest, including one of the world's densest data center markets. Here is how...
Across much of the country, independent grid operators dispatch power plants and run wholesale markets. Here is what ISOs and RTOs are and how they differ...
The Federal Energy Regulatory Commission oversees interstate transmission and wholesale electricity markets. Here is what it does, what it does not do, and why its decisions...
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Public beta open on TestFlight · App Store review pending
Markets and the AI build-out on iPhone, iPad and Apple Watch: live quotes, plain-English research and headlines, with in-app trading on the way.
Free on iPhone, iPad and Apple Watch · Public beta open on TestFlight · App Store review pending
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Every app in the family is coming to Apple’s new foldable. Open it, and each app spreads into a two-pane layout: the feed on one side, the story on the other.