Source Report
Research Question
Research the publicly announced timelines and feasibility challenges for each major supply-side response to AI power demand: nuclear restarts (Three Mile Island Crane Clean Energy Center restart, Palisades, Duane Arnold), SMR and microreactor commercialization (Oklo, NuScale post-bankruptcy, NuScale NNE, Kairos Power timelines), natural gas combined cycle and peaker additions, utility-scale and behind-the-meter battery storage, behind-the-meter generation including gas turbines and fuel cells (Bloom Energy), and on-site nuclear or gas at hyperscaler campuses. For each category, identify what capacity in MW or GW can realistically come online in 2026, 2027, and 2028+, what the key permitting, financing, or supply chain barriers are, and which projects have publicly announced offtake agreements with hyperscalers or data center operators.
Nuclear Restarts
Constellation's Crane Clean Energy Center (formerly Three Mile Island Unit 1) leverages its existing 835 MW pressurized water reactor infrastructure—shut down in 2019 for economic reasons but maintained in operable condition—to restart via a $1.6B refurbishment including turbine, generator, and control system upgrades, enabling rapid reactivation compared to new builds; this data moat of pre-licensed, fueled-ready hardware secures Microsoft's 20-year PPA for full output to match AI data center loads in PJM, but grid interconnection delays from PJM's transmission queue threaten full deliverability until 2031.[1][2][3]
- Targeting H2 2027 restart (advanced from 2028), backed by $1B DOE loan; 835 MW capacity fully contracted to Microsoft via 20-year PPA extending to 2054.[4][5]
- Holtec's Palisades (800 MW PWR) achieved NRC approvals for fuel loading and transitioned to operational status in 2025, but delays pushed restart to early 2026; no hyperscaler PPA announced, financed by $1.52B DOE loan for operations to 2051.[6][7]
- NextEra's Duane Arnold (615 MW BWR, shut 2020 post-derecho) targets Q1 2029 via Google's 25-year PPA for majority output to Iowa AI/cloud ops; NRC licensing bundle by Jan 2028, $1.6B+ cost; training ramps up but workforce recertification lags.[8][9]
Capacity online: 0 GW in 2026; ~0.8 GW Palisades in early 2027; 0.8-1.6 GW cumulative by 2028+ (Crane + Duane delayed); barriers: NRC relicensing (2-3 yrs), grid queue (PJM to 2031), $1-2B financing per plant; competing entrants must navigate FERC capacity rights transfers and state water permits, favoring incumbents with DOE loans over greenfield nuclear.
SMR/Microreactor Commercialization
Oklo's Aurora fast-fission microreactor (75 MW/unit, recyclable fuel) uses factory-built modularity and DOE site permits at INL to target late-2027/early-2028 first deployment, bypassing traditional 2-step NRC process via combined license; Meta's 1.2 GW prepayment at ex-Portsmouth site accelerates via fuel recycling, but HALEU supply and novel coolant limit scale until 2030s.[10][11]
- NuScale's 77 MWe VOYGR (NRC-approved 2025) pivoted post-UAMPS flop (no bankruptcy); ENTRA1/TVA eyes 6 GW by 2030s, Romania FEED ongoing; manufacturing ramp but customer subscriptions lag.[12]
- Kairos molten-salt (140 MW) secured Google 500 MW fleet (first 2030); Hermes demo 2026 but commercialization 2030+; NRC pre-app favors but fuel/supply chain unproven.[13]
Capacity online: 0 GW 2026-2027 (demos only); <0.5 GW 2028+ (Oklo Aurora pilots); barriers: NRC COLA (2-4 yrs post-2026 apps), HALEU shortage (US ~900 kg/yr), $B-scale FOAK financing; new entrants need hyperscaler prepays (e.g., Meta/Oklo) and DOE NSDA to de-risk vs. NuScale's stalled US projects.
Natural Gas CC/Peaker Additions
Hyperscalers bypass 5-10 yr grid queues via behind-the-meter (BTM) CC/gas turbines, with turbine backlogs (GE/MHI to 2028-30) driving 195% price hikes; Texas leads with 80 GW pipeline (40 GW data center direct), enabling xAI/Oracle/Crusoe campuses online in 1-2 yrs vs. grid's 4+.[14][15]
- EIA: 3.3 GW CC 2026 (half under construction), 3.3 GW 2027, 10.6 GW 2028; BTM dominates (e.g., Google/Crusoe 933 MW Texas, Meta 7.46 GW Louisiana).[16]
- Peakers/simple cycle for peaks; total gas dev ~252 GW, $416B capex.
Capacity online: ~3-7 GW 2026 (CC+peaker), 6-10 GW 2027, 15+ GW 2028+; barriers: turbine orders (6 yrs delivery), permitting (local emissions), financing ($/kW rise); competitors gain via BTM (e.g., Crusoe) but face ratepayer pushback without hyperscaler offtakes.
Utility-Scale/BTM Battery Storage
Batteries enable fast-track grid access (18-24 mo deploy) via load-shift/flexibility, with EIA forecasting 24 GW utility-scale 2026 (Texas/California lead); BTM pairs solar (20-40% ELCC) for data centers, but 4-hr duration limits baseload AI.[17]
- Utility: 24 GW 2026 to 67 GW Q1 2027; BTM: 15 GW by 2030 (83% data centers), hybrids boost ELCC to 50%+.[18]
Capacity online: 20-25 GW 2026, 30-40 GW 2027, 50+ GW 2028+ (nameplate; effective ~50% ELCC); barriers: lithium supply, 4-hr limits (needs hybrids), capex ($255-366/kWh 2026); entrants prioritize BTM for data centers to arbitrage peaks.
BTM Generation: Fuel Cells/Gas Turbines
Bloom's SOFC (60% efficient, 90-day deploy) scales modularly for BTM primaries, with Oracle 2.8 GW (2026+), AEP 1 GW ($2.65B), Brookfield $5B framework; 99.99% uptime at 30 MW/acre beats turbines on permitting/emissions.[19][20]
- Gas turbines BTM (e.g., xAI 422 MW Memphis) for speed, but 24-36 mo backlogs.
Capacity online: 1-2 GW fuel cells 2026 (Bloom ramp to 2 GW/yr), 2-4 GW 2027, 5+ GW 2028+; gas turbines 5-10 GW/yr BTM; barriers: Bloom scale-up (Fremont to 5 GW pot.), fuel (nat gas/hydrogen); hyperscaler deals (Equinix/CoreWeave) lock supply.
On-Site Nuclear/Gas at Hyperscaler Campuses
Hyperscalers co-locate BTM nuclear/gas for "bring your own power": AWS $20B Susquehanna nuclear campus (960 MW), Meta 6.6 GW (Vistra/Oklo/TerraPower 2032+), Google Intersect $4.75B for adj. gen; Gray Oak/FANCO bridges gas-to-SMR.[21][22]
- Fermi 11 GW Texas (nuclear/gas/solar) via turbine acquisitions.
Capacity online: Gas 5-10 GW 2026-27; nuclear 0 GW til 2028+ (SMR pilots); barriers: NRC/FERC for nuclear, turbine supply; winners secure PPAs (Microsoft/Constellation) and BTM to avoid queues.
Recent Findings Supplement (April 2026)
Nuclear Restarts
Constellation's Crane Clean Energy Center (formerly Three Mile Island Unit 1, 835 MW) secured a $1B DOE loan in November 2025 to support its Microsoft-backed restart, but grid interconnection delays via PJM—potentially until 2031 due to transmission projects and transformer shortages—threaten the 2027 target, forcing FERC waiver requests opposed by PJM's market monitor; water withdrawal permitting for 73M gallons/day from the Susquehanna River is under public comment until May 4, 2026, amid drought concerns.[1][2][3]
- No 2026 online capacity; 2027 at risk (H2 target); 2028+ viable if waivers granted, with full Microsoft 20-year offtake.
- Barriers: Transmission queues (delayed to 2030+), FERC/PJM waivers, Susquehanna River Basin Commission water approval, NRC public meetings ongoing.[4][5]
- Competitors face similar grid bottlenecks, amplifying value of existing nuclear; hyperscalers like Microsoft prioritize restarts for firm power despite premiums (~$110-115/MWh vs. market).
Holtec's Palisades (800 MW) restarted decommissioning status with NRC approval for fuel loading, but slipped from end-2025 to early 2026 (possibly late March) due to steam generator upgrades and inspections; $1.52B DOE loan supports, with NRC extending license renewal filing to March 2028.[6][7]
- ~800 MW possible early 2026; no confirmed hyperscaler offtake yet, but co-op PPAs (e.g., Hoosier/Wolverine) via New ERA funding.
- Barriers: Component recertification, legal challenges; SMR-300 add-ons (600 MW total) target early 2030s post mid-2027 Part 2 permit.[8]
- First-ever full restart sets precedent, but delays highlight supply chain risks; entrants need DOE loans and co-op deals to compete.
NextEra's Duane Arnold (~615 MW) advanced via Google's October 2025 25-year PPA (majority output) and NRC relicensing filing; DOE monitors as restart candidate, targeting early 2029.[9][10]
- No 2026-2027 capacity; 2028+ (~615 MW).
- Barriers: Ownership transfer tied to PPA, NEPA review; no recent permitting updates.
- Google's commitment de-risks economics, but slower than Palisades; new entrants lag without hyperscaler anchors.
SMR/Microreactor Commercialization
Oklo's Aurora (15-50 MW units) gained Meta partnership for 1.2 GW Ohio campus (first ~2030), plus Switch MPA (up to 12 GW by 2044); DOE pilot accelerates Idaho test (2027-2028), with hyperscaler pipeline >14 GW but non-binding.[11][12]
- Negligible <2028; pilots 2028+ scaling to hundreds MW via data center co-location.
- Barriers: Fuel allocation, site permitting; no firm GW-scale PPAs yet.
- Meta/Equinix demand favors micro-scale for edge sites, but execution risks high vs. restarts.
NuScale (77 MW modules) pursuing 6 GW ENTRA1/TVA deal (no binding PPA/timeline) and RoPower FID (late 2026/early 2027); no bankruptcy mentions, NRC-certified but Idaho project canceled pre-2025.[13]
- No firm 2026-2028 GW; potential RoPower Phase 2 revenue 2027+.
- Barriers: FID delays, no hyperscaler offtakes announced.
- Lags Oklo on data center momentum; needs PPAs to compete.
Kairos/others: Sparse post-Oct 2025 updates; Google's 500 MW rolling (2030-2035) unchanged.[14]
- 2028+ pilots; supply chain/regulatory hurdles persist.
- Hyperscalers co-develop, but timelines >2030 limit near-term entry.
Natural Gas CC/Peaker Additions
Proposals surged 300% to 159-252 GW (AI-driven), but turbine lead times (5+ years) limit to ~5 GW 2025 actuals; 19 GW equipment available by 2028, RWE eyes 9 GW peakers by 2031 (MISO/PJM/ERCOT), We Energies 2 plants (2028-2029).[15][16]
- <10 GW 2026-2027 (under construction ~30 GW total); 2028+ ramps to 40+ GW/year.
- Barriers: Turbine backlogs (easing 2027), regulators reject cost-shifting (e.g., data centers pay 100%).
- Fastest baseload/peaking for hyperscalers, but emissions scrutiny favors BTM.
Utility/Behind-the-Meter Battery Storage
Record 15 GW utility-scale added 2025; 24 GW projected 2026 (TX/CA/AZ lead), cumulative 67 GW by Q1 2027; BTM surges for interconnection acceleration (e.g., Aligned 31 MW), GW Ranch 1.8 GW (2027 first power).[17][18]
- 24 GW utility 2026, +BTM ~10-15 GW; 2027-2028 doubles.
- Barriers: Tariffs/supply restructuring dip growth 2026-2027.
- Enables renewables but non-firm; hyperscalers pair with gas for viability.
Behind-the-Meter Generation (Fuel Cells/Gas Turbines)
Bloom Energy's fuel cells exploded: Oracle 2.8 GW MSA (1.2 GW deploying), AEP $2.65B/1 GW, Brookfield $5B global; hyperscalers favor for 55-day deploy vs. grid years.[19][20]
- 1-2 GW 2026; 2027-2028 multi-GW via backlog.
- Barriers: Fuel costs ($150-180/MWh); nat gas efficient/low-water.
- Fastest BTM for Oracle/Meta; $7.65B deals signal hyperscaler shift to on-site.
On-Site Nuclear/Gas at Hyperscaler Campuses
Meta 6.6 GW nuclear PPAs (Vistra uprates 2.1 GW extend, Oklo/TerraPower 2030+); Google Duane Arnold, Crusoe gas talks; Microsoft Nscale 1.4 GW off-grid gas (2028); Oracle Jupiter 2.45 GW Bloom fuel cells; SoftBank 10 GW Ohio (9.2 GW gas).[21][11]
- Gas/fuel cells 2026-2027 GW-scale; nuclear 2028+.
- Barriers: State laws bypass grid (WV), but emissions/permitting.
- BTM/on-site dominates (38% data centers by 2030); hyperscalers lock PPAs early, sidelining grid-tied entrants.