NuScale Power (NYSE: SMR) gained over 10% Apr 30 on Amazon's announcement of three new SMR-backing deals, including a $500M investment in X-energy. The broader nuclear sector rallied; Amazon's structuring is similar to its prior June 2025 MOU with Dominion Energy for joint development of up to 5 GW of nuclear capacity in Virginia, including a $500M venture for a 300 MW SMR. Sector signal: equity markets are now pricing in nuclear/SMR as AI-data-center primary power, not just backstop.
Primary source · CoinCentral ↗
Why it matters
The Dominion-Amazon SMR collaboration is in PJM-East, where the 51 GW contracted figure (top item) is concentrated and where the HB 1393 / SB 253 cost-shift fight is happening simultaneously. Three regulatory tracks now intersect on the same physical territory: (1) cost-allocation rule, (2) generator-emissions Tier-4 BACT presumption (yesterday's lead), (3) SMR siting/licensing. This is exactly the multi-axis site readiness-risk surface where the air-permit / interconnection / siting integration matters most. For the wiki: open a new entry tracking the Dominion-Amazon 5 GW SMR collaboration with milestones and link from interruptible-load-derate.md (because 300 MW SMR + curtailable load is a different denominator than 300 MW gas + curtailable load). The fact that NuScale rallied 10% on a competitor (X-energy) deal is a rising-tide signal for the SMR-as-data-center-primary-power thesis; worth a watch on the Q1 SMR developer earnings cycle (Oklo, NuScale next week) for any Cliff-relevant disclosures on data center customer pipeline.
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