Power Infrastructure
Power delivery, grid capacity, and electrical infrastructure for AI datacenters.
Stack position
Where Power Infrastructure sits in the AI stack
L0 · Energy
Generation and fuel feeding the grid that AI datacenters draw on: gas, nuclear, renewables, storage.
L1 · Power Infrastructure
Power delivery, grid capacity, and electrical infrastructure for AI datacenters.
L2 · Semiconductor Materials
Silicon wafers, photoresist, specialty gases, and process chemicals — few suppliers per node.
L3 · Semiconductor Equipment
Lithography, etch, deposition, inspection, and advanced packaging tools.
Icons mark layer roles — not company logos. Position only; not a price chart.
Why this layer matters
Between the grid and a GPU there is a whole chain: transmission, transformers, switchgear, UPS, PDU, and rack-level distribution. Each step has to be sized for the rack, and racks are moving from tens of kilowatts toward 100kW+ and megawatt scale.
What is the bottleneck?
Transformer and switchgear lead times are measured in quarters to years. A datacenter with accelerators on site and no energisation path is not compute.
A structural observation about supplier concentration and lead times — not a view on any security.
Who sits in this layer?
Company
ETNUPSPower management softwareEaton
Role
Supplies UPS backup power and power-management systems for data centers.
Evidence
UPS backup power and power-management systems for datacenters.
Company
VRTUPSPower distributionSwitchgearVertiv
Role
Supplies critical power equipment for data centers, including UPS, power distribution, switchgear and busway.
Evidence
Datacenter power distribution and UPS systems.
Company
GEVTransformersSwitchgearGas turbinesGE Vernova
Role
Supplies grid transformers, switchgear and transmission equipment, as well as gas turbines for power generation.
Power generation equipment and grid transmission hardware.
Company
HUBBUtility productsHubbell
Role
Supplies utility products used across power generation, transmission and distribution.
Evidence
Electrical distribution and grid infrastructure products.
Company
PWRTransmission constructionSubstation constructionQuanta Services
Role
Builds and maintains transmission lines, substations and distribution lines for the power grid.
Evidence
Builds and maintains transmission lines, substations and distribution lines for the grid.
The other side
Long lead times are not the same as a lasting shortage. Equipment makers can add capacity, and lead times shorten as it arrives; electrical equipment has had cycles in which orders surge and then fall back. Data centers can also work around part of the grid and distribution constraint with on-site generation, storage or more flexible load, and efficiency gains in chips and racks slow the growth in power per site.
What could invalidate this picture?
The constraint eases if transformer and switchgear lead times shorten clearly, or if on-site generation and storage let data centers stop waiting on the grid. It tightens if rack power keeps climbing toward megawatt scale while interconnection queues and equipment lead times do not shorten.
Funds holding companies in this layer
Listed alphabetically. Only each fund's published top ten holdings are checked against this layer, so smaller positions are not counted. Holdings and expense ratio come from the issuer; no returns, yields or ratings are shown. Not a recommendation.
- ZAP
Global X U.S. Electrification ETF
Top-ten holdings in this layer
PWR 5.04% · ETN 4.62%
9.66% of the fund
45 holdingsExpense ratio 0.50%Holdings as of 2026-10-06
Coverage boundary
Coverage boundary: US-listed tickers or ADRs only (same rule as TSM / ASML). Important suppliers without a US listing are omitted even when they matter to the stack. That is a coverage rule, not a quality ranking.
No hand-listed notable omissions for this layer yet. The US-list / ADR rule still applies.
Checked 2026-10-09. Not exhaustive.
Same track
Descriptive positioning only. The positioning label says whether a company's business is exposed to a layer, never whether to buy it. Layers with no exposure are not recommendations to add any.