AI Demand Accelerates Renewable, Nuclear, and Long-Duration Energy Buildout

AI Demand Accelerates Renewable, Nuclear, and Long-Duration Energy Buildout

Published Nov 12, 2025

Global energy investment is shifting rapidly to meet surging demand for reliable, carbon‐free power to run AI and data centers. The IEA forecasts ~4,600 GW of added renewable capacity 2025–2030—about 80% from solar PV—with offshore wind adding ~140 GW, and renewables set to overtake coal by end‐2025 or mid‐2026; renewables are projected to supply over 90% of electricity demand growth and reach ~45% of generation by 2030. Corporates are locking 24/7 clean supply: NextEra and Google (Oct 27, 2025) agreed to restart Iowa’s 615 MW Duane Arnold nuclear plant under a 25‐year PPA, targeting a Q1 2029 return. Expansion of long‐duration storage (Form Energy 500 MW annual iron‐air capacity by late 2025; CAES with ~15% experience rates) and policy fixes on permitting and tax credits are now urgent to enable this transition.

Global Renewable Power to Double Capacity, Dominating Electricity Growth by 2030

  • Global renewable power capacity additions — ~4,600 GW (2025–2030; ≈2x vs 2019–2024; global)
  • Renewables’ share of electricity demand growth — >90% (by 2030; global)
  • Renewables’ share of global electricity generation — ~45% (2030; global)
  • Duane Arnold nuclear plant capacity for Google PPA — 615 MW (Q1 2029 online; 25-year PPA; Iowa, U.S.)
  • Form Energy U.S. plant annual production capacity — ≥500 MW/year (by late 2025; minimum capacity; U.S.)

Navigating Risks and Constraints to Achieve Scalable Clean Energy Growth

  • Bold Policy and permitting whiplash in the U.S.: IEA slashes capacity forecasts by ~50% (except geothermal) due to shifting tax credits, import rules, and project permitting, threatening renewables’ role in meeting >90% of demand growth by 2030 and AI/data center 24/7 clean power needs. Stabilizing incentives and streamlining permitting can unlock projects; beneficiaries include developers, utilities, and AI/cloud operators.
  • Bold Long‐duration storage commercialization (Known unknown): While Form Energy targets 100‐hour iron‐air at ~1/10 Li‐ion cost with a US plant scaling to ≥500 MW/yr by late 2025, and CAES shows ~15% experience rates for 10–100 hours, it remains uncertain whether cost/performance will scale fast enough to balance a grid where variable renewables nearly double their share by 2030. Early procurement, pilots, and diversified storage portfolios could turn this into a competitive edge for utilities, grid operators, and data‐center owners.
  • Bold Nuclear restart execution/regulatory risk: The 615 MW Duane Arnold restart for Google (25‐year PPA) targets Q1 2029, but licensing, ownership consolidation (NextEra acquiring ~30% minority stakes), and project delivery risks could delay firm, carbon‐free supply for Google and local utilities. Proactive regulatory engagement and robust financing/contracting can de‐risk timelines, creating a replicable model for firm clean power; beneficiaries include NextEra, Google, and host regions.

Key Energy Milestones 2025-2029: Storage, Renewables, and Nuclear Restart

PeriodMilestoneImpact
Q4 2025 (TBD)Form Energy US plant expands to minimum 500 MW annual capacity.Scales 100-hour storage at ~one-tenth Li‐ion cost; supports renewable reliability.
Dec 2025 (TBD)Renewables surpass coal as largest global electricity source (IEA projection).Confirms transition; accelerates grid integration, policy focus on wind/solar dominance.
Q1 2029Duane Arnold nuclear restart (615 MW) to supply Google via NextEra Energy.Adds firm 24/7 carbon-free power; anchors 25-year PPA for AI/data centers.

How AI’s Energy Demands Are Accelerating Pragmatic Clean Power Solutions Globally

Depending on where you sit, AI is either the engine finally forcing the clean‐power buildout or a demand shock that exposes every weak seam in policy and infrastructure. Optimists point to the IEA’s locked‐in surge—about 4,600 GW of renewables from 2025–2030, mostly solar—and to deals like Google and NextEra’s 25‐year pact to restart a 615 MW nuclear plant for 24/7 carbon‐free supply by 2029. Skeptics counter that forecasts have already been slashed by roughly 50% in the U.S. due to shifting tax credits, import rules, and permitting, with China revising down as well; “locked in” can still be locked up by bottlenecks. Long‐duration storage is advancing—iron‐air batteries targeting 100‐hour discharge at around one‐tenth the cost of lithium‐ion and adiabatic compressed air showing promising experience curves—but economics and scale must prove out. Here’s the provocation: AI may be the most effective climate policy the world never voted on, but it still lives or dies on permits, interconnections, and timelines.

The counterintuitive takeaway is that the quest for unblinking reliability in data centers is making decarbonization more pragmatic, not less: 24/7 clean power deals are reviving nuclear units, catalyzing multi‐day storage, and hardwiring renewables to surpass coal as soon as 2025–2026. If renewables will supply over 90% of demand growth by 2030 while variable wind and solar nearly double their share, the next decisive shift is who can turn that variability into firm supply fastest. Watch for more long‐dated contracts marrying utilities and hyperscalers, grid integration and permitting reforms that actually materialize, and whether long‐duration storage hits its cost and deployment milestones. The race to train models is training the grid.