CoreWeave gave two distinct measures of its power footprint in its 10 November 2026 quarterly results: more than 4.6 GW of contracted power and more than 1.7 GW of active power. The gap is not a rounding issue. One figure describes power backed by agreements; the other describes capacity the company classifies as active. Neither is a reading from an electricity meter.
Power is a rate, not an energy total
A megawatt measures the rate at which electricity can be delivered or used. A megawatt-hour measures energy over time. A site running at 100 MW for one hour uses 100 MWh. If it uses only half that power over the same interval, it uses half as much energy even though the rated capacity of its connection has not changed.
The same distinction applies to an AI cloud. Active power does not reveal the utilisation of its accelerators, the amount of computing delivered to customers, or the annual energy used by the fleet. Those require other measurements.
The two totals are growing at different rates
CoreWeave reported adding more than 200 MW of active power during the quarter. Contracted power rose by more than 900 MW. Its August report for the preceding quarter had put contracted power at about 3.7 GW. The latest quarter gives evidence of progress in putting capacity into service, as well as a larger pipeline that is not equivalent to capacity available today.
The company still expects more than 1.85 GW of active power at the end of 2026. That is guidance, not a quarter-end measurement. It is also more informative to track actual additions against that guidance than to treat the distance between two rounded headline numbers as a precisely measured construction backlog.
The distinction predates this quarter. In its 2025 annual report, CoreWeave described about 3.1 GW of contracted capacity at year end that it expected to deploy over future periods. An agreement can be meaningful because it gives a developer a path to future capacity. That does not make the entire pipeline interchangeable with sites that can already accept equipment or run jobs.
A hosting partner shows what sits between signing and service
Core Scientific’s quarterly filing for the period ended 30 September gives a narrower example. It reported 485 MW of billable customer power capacity out of 590 MW leased to CoreWeave, with the remaining 105 MW in stages of construction and commissioning. Those are metrics for a hosting relationship, not figures to add on top of CoreWeave’s company-wide totals.
The distinction is useful because delivery does not happen in one step. Electrical infrastructure must be built and tested. The operator must then be able to use the site under the commercial arrangements. Once equipment is in service, load will still change with the jobs running. A single capacity figure cannot describe each stage.
Usable compute is yet another milestone
Power is necessary, but it does not tell a customer which accelerators are installed, which networks connect them or whether a particular workload can run reliably. Conversely, a good benchmark for a commissioned cluster says little about when the rest of a power pipeline will become usable.
Three questions make the announcement easier to read: how much capacity is under contract, how much is active, and what jobs can the active capacity serve? CoreWeave’s results answer the first two in aggregate. The third needs deployment and workload evidence rather than another figure in gigawatts.
Featured image: Equipment racks in a server room. Contextual photograph; not the study, product or facility discussed here. Photo: Kevin Ache / Unsplash. Unsplash licence.
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