The Grid & Datacenter Power — Transformers, Switchgear & AI Fuel Cells
You can build the world's best AI chip and the perfect cooling system. None of it works without grid-scale power. Eaton, Hubbell, and nVent are sold out 24+ months.
AI datacenters are pushing the US electrical grid past its limits. Transformers (gray boxes that step voltage down) and switchgear (the boxes that route power) are sold out 24+ months . The crisis has created a generational opportunity for Eaton, Hubbell, and nVent — the dominant US power-distribution names. Separately, hyperscalers are increasingly going behind-the-meter for primary power: Generac (backup generators), Cummins (large generators and engines), and Bloom Energy (fuel cells with multiple hyperscaler deals in 2025).
Transformer factories take 3+ years to build. The grid is full. Hyperscalers are paying any price to lock up power. The pricing power has shifted fully to suppliers.
5 names on the watchlist
Power distribution + cooling (Boyd Thermal). Cross-listed in Sectors III, X, and XII.
Already covered in Cooling (Sector X) and Non-AI Energy (Sector III). Listed here for completeness — Eaton's grid power distribution business is one of the prime beneficiaries of the transformer/switchgear shortage. The most diversified single name in this entire document.
Electrical components and utility-grade transmission gear. Grid-scale bottleneck pure-play.
Electrical components and utility-grade transmission gear. Pure-play grid-bottleneck exposure — every transformer, every distribution panel, every utility-grade connection. Less diversified than Eaton; cleaner electrical-grid exposure.
Schroff (racks) + Erico (electrical) + datacenter cooling. Cross-listed in Sectors X and XII.
Already covered in Cooling (Sector X). The Erico electrical-connection division and Schroff rack systems make nVent dual-exposed across the cooling and power-distribution chokepoints.
AI fuel cells. Multiple hyperscaler deals in 2025 for behind-the-meter primary power.
Solid-oxide fuel cells for behind-the-meter primary power at datacenters . Multiple hyperscaler design wins in 2025 (AEP, Equinix, several confidential). The faster way to give a hyperscaler 100+ MW than waiting 3 years for a transformer + grid connection. High beta; binary on whether fuel-cell economics scale.
Generac = backup generators (residential + commercial). Cummins = large generators and natural-gas engines for datacenters.
Backup and prime-power generation. Cummins large natural-gas engines are increasingly used as bridge primary power at new datacenter campuses pending grid connection. Generac is more residential/SMB-focused. Cyclical but real AI-driven demand.