This $23B number that gets thrown around is not the increase to the public. The wording in the referenced report is

> Based on actual auction clearing prices and quantities and uplift MW, inclusion of existing and forecast data center load growth resulted in a combined total increase in capacity market revenue for the 2025/2026 BRA, the 2026/2027 BRA, and the 2027/2028 BRA of $23,100,955,341.

This is the increase in revenue to PJM from adding datacenter customers, and includes both the amount that datacenters paid as well as the amount that other customers paid due to higher prices from datacenters. So Fortune calling it an increase to "the public" means that they didn't read the report they are using as their source and are probably just repeating what they thought someone else meant.

Bloomberg in the past worded it as "data centers will add at least $23 billion to customer bills" in April and "added a minimum of $23 billion to customer bills" in February. Which while technically correct (datacenters are customers) seems meant to be misleading. And now that's the number that's getting thrown around as the increase to "the public".

The part I don't get is that the journalists could just give the actual number for the quantity that they are referring to (the amount that non-datacenters paid due to higher rates due to datacenter loads): when I calculated it a few months ago I think it was something like $16 billion rather than $23 billion. I feel like the story would have the same impact if the headline number was $16B as $23B, but $16B has the benefit of not being a misrepresentation of the situation.

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Also I would definitely recommend checking out the PJM BRA report. It's a bit dense but not too hard to follow, and my personal takeaway was that the PJM market is just very dysfunctional and they are blaming the datacenters instead. I thought SemiAnalysis had a good analysis of it: https://newsletter.semianalysis.com/p/are-ai-datacenters-inc...