Nuclear-for-data-centers finance structure comes together - how the first SMR-DC deal actually pencils out

e27 reports the deal structure for financing a first nuclear reactor to power a data centre is finally taking shape. The AI power wall meets project finance.

In plain terms - After 18 months of talk about pairing small modular reactors (SMRs) with data centers, e27 reports that at least one deal's financing structure is now converging - the piece that determines whether any of this actually gets built.

Le fait

e27 (26 July 2026) covers the emerging deal structure for financing a first nuclear reactor dedicated to a data centre. The framing: the missing piece has never been the technology or the demand - it's been the risk-sharing between the reactor vendor, the hyperscaler offtaker, the utility, and the capital stack.

Notre lecture

Nuclear-for-DC PPAs have been announced for two years (Microsoft-Constellation, Amazon-Talen, Google-Kairos). What was missing was the greenfield SMR case, where the reactor doesn't yet exist. Getting a bankable structure means someone has decided how the construction-cost overrun risk (nuclear's historical killer) sits between EPC, the offtaker's take-or-pay, and equity. If this pencils, expect a wave of copies - the New York DC moratorium (publication #1097) makes off-grid nuclear less optional, not more.

À surveiller

• Named counterparties (reactor vendor, hyperscaler, sponsor equity)
• Take-or-pay tenor and price relative to grid PPAs
• Regulatory greenlight - SMRs need siting and licensing, which is still the slowest bottleneck