Powering Demand: Nuclear Solutions for AI Infrastructure

US-China Technology CompetitionHouse Science, Space, and Technology Subcommittee on Energy · 2025-06-12 · 119th Congress
The House Science, Space, and Technology Subcommittee on Energy held this hearing to examine whether nuclear energy — from existing reactors, restarted plants, and advanced/small modular reactors — can meet the rapidly growing electricity demand from AI data centers. Begins at 0:12:45
Transcript
Highlights

Title

Nuclear power options for meeting AI data center electricity demand

Purpose

The House Science, Space, and Technology Subcommittee on Energy held this hearing to examine whether nuclear energy — from existing reactors, restarted plants, and advanced/small modular reactors — can meet the rapidly growing electricity demand from AI data centers. Members and witnesses discussed federal programs supporting nuclear deployment, proposed budget cuts to DOE's Office of Nuclear Energy, ratepayer protection, licensing reform, and competition with China. Begins at0:12:45

Who spoke

Chairman Randy Weber (R-TX)0:12:45: Opened by describing AI's projected electricity demand (data centers rising from 25 to 80 gigawatts by 2030)0:14:52, nuclear's 92.5% capacity factor0:16:01, and DOE's HALEU fuel allocations to X-Energy, Kairos, Radiant, Westinghouse, and TerraPower0:18:47; later questioned witnesses on DOE's role in Oklo's success0:48:42 and milestone-based contracting modeled on NASA's COTS program1:02:54.

Ranking Member Deborah Ross (D-NC)0:19:40: Cited North Carolina's 15x rise in data center construction0:21:09 and 61 billion kg of CO2-equivalent emissions from US data centers in 20230:22:01; warned ratepayers "should not be first in line" to absorb first-of-a-kind cost risk0:24:14, and pressed on construction-work-in-progress costs harming ratepayers in monopoly markets like South Carolina0:55:36.

Rep. Zoe Lofgren (D-CA), Ranking Member of full committee0:26:53: Criticized the administration's FY26 budget for cutting the Advanced Reactor Demonstration Program by 51% and fusion research by 6% despite claiming to "unleash energy dominance"0:28:15; noted the reconciliation bill would cut loan-guarantee support more than fourfold versus the budget proposal0:29:06.

Mr. Pat Schweiger, CTO, Oklo0:30:50: Described Oklo's build-own-operate model, its 14+ gigawatt customer pipeline including a 12-gigawatt deal with Switch0:33:35, and fast-reactor fuel recycling from spent fuel at Idaho National Lab0:34:31; said Oklo's business model is largely insulated from federal loan-program changes0:50:27 and that fuel supply is the industry's key barrier1:36:25.

Ms. Kathleen Barrón, EVP/Chief Strategy and Growth Officer, Constellation Energy0:36:45: Testified Constellation operates 21 reactors generating 32 gigawatts (16 million homes)0:37:13, detailed the Crane (Three Mile Island) restart for Microsoft0:39:25 and the Clinton plant's 20-year Meta agreement0:39:51, and urged continuing the 45U, 45Y, and 48E tax credits and DOE loan programs0:41:22.

Dr. Jeremy Renshaw, Executive Director AI & Quantum, EPRI0:42:47: Explained EPRI's Open Power AI Consortium and DC Flex initiative to make data centers flexible grid resources0:44:18; cited IEA projections that global data center energy use will double to 945 terawatt-hours by 20300:45:07, and repeatedly noted EPRI does not take policy positions1:09:12.

Rep. Brian Babin (R-TX), full committee chair1:00:04: Asked about Texas's new Advanced Nuclear Energy Office and grant program1:00:32 and pressed Schweiger on milestone-based DOE contracting conditions1:02:54.

Rep. Zoe Lofgren [second round]1:05:38: Compared US and Chinese nuclear buildout pace, noting China builds reactors in about 52 months1:07:50, and asked whether cutting the Advanced Reactor Demonstration Program by half hurts US competitiveness1:06:31.

Rep. Nancy Mace (R-SC)1:11:24: Highlighted South Carolina's Oconee nuclear station and the new Palmetto Nuclear Coalition1:12:19, and asked what federal policy could scale nuclear fast enough to meet demand1:13:21.

Rep. Val Hoyle (D-OR)1:16:51: Asked about R&D to improve AI chip and data center efficiency, citing Oregon's Corvallis microfluidics tech hub1:17:13, and pressed Constellation on protecting ratepayers from cost overruns1:18:54.

Rep. Victoria Spartz (R-IN)1:21:03: Asked about barriers to Constellation's SMR investment following its Rolls-Royce SMR stake1:21:26 and discussed her Small Modular Reactor Commercialization Act's 300-megawatt threshold reform1:23:41.

Rep. Judy Chu (D-CA)1:26:32: Noted one in five California ratepayers are behind on bills with rates 80% above the national average1:27:06, and asked whether new nuclear capacity would primarily serve data centers rather than residential customers1:27:36.

Rep. Jeff Hurd (R-CO)1:32:42: Asked how President Trump's nuclear executive orders affect Oklo's and Constellation's plans1:33:10, and about spent-fuel recycling potential1:36:25.

Rep. Deborah Ross (D-NC) [second round]1:37:38: (see above)

Rep. Sarah McBride (D-DE... actually listed as "gentle lady from Maryland") — the transcript identifies her only by chair's recognition of "the gentle lady from Maryland"1:44:03: Discussed X-Energy's DOE-partnered demonstration with Dow Chemical and Amazon's $334 million follow-on investment1:45:20, and asked about financing models combining public and private capital1:46:44.

Rep. Bill Foster (D-IL)1:49:18: Discussed using AI to reduce nuclear regulatory compliance and engineering documentation costs1:49:43, and asked about demand-response arrangements between data centers and utilities1:52:59.

Rep. Suhas Subramanyam (D-VA)1:56:01: Raised concerns about cuts to fusion research funding (down 6% to $744 million) and NSF's 55% cut1:56:37, and asked how to prioritize fundamental science funding amid budget constraints1:57:55.

Key moments

Chairman Weber said data centers can afford no more than 5.25 minutes of downtime, underscoring nuclear's 92.5% capacity factor as uniquely suited to that reliability requirement0:16:01.

Lofgren said the administration's budget cuts the Advanced Reactor Demonstration Program by 51% while its language claims to "unleash America's energy dominance," and that the House reconciliation bill would eliminate more than four times as much loan-guarantee support as the budget proposes0:28:150:29:06.

Barrón disclosed that Constellation's early site permit renewal at its Clinton site — despite an existing reactor already on-site — costs about $35 million and takes multiple years to evaluate, illustrating regulatory duplication1:15:03.

Schweiger said Oklo is "the only SMR" with a fuel supply already secured or in process through DOE's EBR-II recycled fuel program0:49:33.

On US-China competition, Barrón said China is building reactors in about 52 months (just over four years) on time and on budget, building "credibility and trust" that US projects currently lack1:07:50.

Barrón compared Vogtle Unit 4, which was 30% cheaper than Unit 3, as evidence that costs fall once first-of-a-kind technology reaches an established order book1:19:47.

Renshaw said AI-specific data centers consume up to five times more energy than traditional data centers, and the IEA projects global data center energy use will double to 945 terawatt-hours by 2030 — more than Japan's total electricity use0:45:07.

Barrón said Constellation used AI to optimize hydro/pumped-storage operations on the Susquehanna, generating 250,000 additional megawatt-hours (enough for 25,000 homes) without new infrastructure1:42:24.

Rep. Foster raised that Chinese solar panels now cost about 10 cents a watt and cited a Goldman Sachs analysis finding co-located solar-plus-battery-plus-data-center is currently the cheapest configuration, a competitive challenge for nuclear1:55:35.

Subramanyam noted China allocated $1.5 billion to fusion research last year versus a proposed US fusion budget cut of 6% to $744 million, while NIH and NSF face deep cuts as well1:57:001:57:55.

Metadata

CommitteeHouse Science, Space, and Technology Subcommittee on Energy
Chamber / CongressHouse · 119th Congress
Date2025-06-12
TypeMeeting
Witnesses
Mr. Pat Schweiger — Chief Technology Officer, Oklo
Ms. Kathleen Barrón — Executive Vice President and Chief Strategy and Growth Officer, Constellation Energy
Dr. Jeremy Renshaw — Executive Director AI & Quantum, Electric Power Research Institute (EPRI)
Videoyoutube
Transcript253 caption blocks · 17,831 words · 2:02:13 runtime
EventCongress.gov 118386