AI Data Center Pipeline Hits 456GW as 51.7GW Gets Shelved
TREE NEWS reports: The US data center development pipeline reached 456 gigawatts in September, adding 52.2GW in a single month — a 13% sequential jump and a 173% year-over-year increase. But a record 51.7GW is now shelved, equal to 11% of the total pipeline, as local opposition and permitting constraints accumulate across 27 states.
Hyperscalers and Developers Drive Growth
Hyperscaler pipelines reached 68.7GW, up 10.1GW in September. Google added 3.9GW, Amazon 3.8GW, and Meta 2.4GW. Developers, who account for 38% of total pipeline, added 24.6GW, while colocation providers added 7.6GW. Under construction, capacity rose to 79.9GW, up 7GW sequentially and 153% year-over-year. Hyperscalers hold 31.4GW under construction, with Google adding 2.1GW and Microsoft 1GW, while Amazon and Meta each trimmed slightly.
Behind-the-Meter Surges
Behind-the-meter (BTM) projects reached 192.5GW, up 29GW month-over-month and 18% sequentially. BTM now represents 42% of the pipeline, up from 39% at the start of the year. Developers rely on BTM for 60% of their pipeline, and new cloud providers for 58%. Texas leads with 116GW — nearly triple the second-largest state — though its September additions of 7.9GW trailed August’s 14.5GW. Utah added 10.8GW, the most of any state.
Shelved Capacity Hits Record
Shelved capacity climbed to 51.7GW, up 2.1GW from August and 186% year-over-year. Developers account for 32% of shelved capacity, colocation providers 16%, hyperscalers 10%, and undisclosed projects 38%. BTM projects represent 25% of shelved capacity, up from 16% in May. With 27 states restricting or considering restrictions — up from 25 — and roughly 70% of pipeline and under-construction capacity located in states with 2026 gubernatorial races, the risk of further delays is rising. At the current build pace, absorbing the 456GW pipeline would take 13.3 years, slightly longer than last month’s 13.1 years.
Electrical Equipment TAM Comes Into Focus
Based on the pipeline and a $5 million per megawatt opportunity, the electrical equipment total addressable market is estimated at $684.3 billion for Quanta Services, $164.2 billion for Vertiv, $121.8 billion for Schneider Electric, $106.7 billion for Eaton, and $91.2 billion for ABB. Consensus expects hyperscaler capex of $771 billion in 2026, up 87%, and $1.1 trillion in 2027, up 40%. Eaton, Hubbell, Quanta Services, Legence, Jacobs, Forgent, Trimble, and United Rentals maintain outperform ratings with target prices of $534, $584, $775, $103, $163, $48, $73, and $1,317, respectively.
Outlook
The AI infrastructure buildout remains robust, but the gap between announced pipeline and permitted, buildable capacity is widening. Investors in electrical equipment and data center supply chains should watch state-level politics and BTM adoption as key swing factors for 2026-2027 delivery schedules.
