Nuclear generation sets 2,702 TWh record as ETF Trends argues NUKZ buildout case

Global nuclear generation reached 2,702 terawatt-hours, a record for the second consecutive year, according to a World Nuclear Association statement relayed in an ETF Trends article. The same account puts capacity in operation at 423 gigawatts-electric across nearly 440 reactors in 2025, with three units connected to electricity grids during the period and construction begun on 11 reactors last year. The fleet ran at an average capacity factor of 83.7%, meaning reactors produced their rated power about 84% of the year, a level the article is careful to set against the below-40% factors it cites for wind and solar.

The ticker attached to that record is NUKZ, the Range Nuclear Renaissance Index ETF, which the article describes as holding companies involved in reactor construction, maintenance and nuclear facility management. That is the building and servicing end of the chain rather than raw-material extraction, and it is the exposure the article says a multidecade buildout calls for. Readers are also invited to subscribe to a weekly nuclear investing newsletter, and the page carries a disclosure that VettaFi, the publisher, is NUKZ's index provider and receives an index licensing fee; that the fund is not issued, sponsored, endorsed or sold by VettaFi; and that VettaFi has no obligation or liability for its issuance, administration, marketing or trading. Holdings, weights and fund-level figures do not appear on the page.

Record output and an 83.7% capacity factor describe reactors already running, their fuel and their utility owners, while NUKZ's stated exposure is to the chain that builds and services whatever comes next. The article's own projection sizes the distance between those two things: 1,457 GWe by 2050 against 423 GWe now implies roughly 41 GWe of net additions every year for a quarter century, and the association counted 11 construction starts last year. On the figures as quoted, tripling today's 423 GWe arrives at 1,269, and 200 GWe beyond that is 1,469, twelve more than the 1,457 the projection targets — a gap the page leaves unexplained.

Demand is the article's stated driver: governments and hyperscaler data centers seeking continuous carbon-free power. Nothing in the piece attaches a contract, a price or a named counterparty to that demand; the evidence offered for it is a fleet-level output record, which is what a thematic fund pitch usually looks like, and it is why the construction-start count matters more than the milestone headline. For an allocator weighing a nuclear sleeve, the number to carry forward is not 2,702 TWh but 11 — the starts reported for last year, against the 41-a-year pace the 2050 target implies. That spread, not the record, is what the fund's description needs to be vindicated.