MSFT 1.5 GW self build freeze persistent FY26 10-K SemiAnalysis / Microsoft 2 GW lease cancellations / OpenAI Oracle Stargate substitution / Sightline Climate 9 cancellations 2026 vs 0 in 2024 / 30-50% 2026 capacity delayed or canceled / Monterey Park CA Measure NDC Jun 2 / 88.34% approval 10321 to 1362 / Saturn Avenue project dead / permanent municipal code ban / first ballot measure perpetual ban / Southern California Edison territory

Plain-English background. Until 2026 the consensus narrative was that US data center capex was supply-constrained — power, transformers, switchgear, GPUs — but demand was effectively unlimited. Hyperscalers (Microsoft, Google, Amazon, Meta, Oracle, OpenAI/Stargate) had committed to building everything the grid could absorb. The bottleneck was transformers and 230 kV substations, not whether a campus would be built. That narrative has shifted in the last six months. Three separate data points, all of which became more visible in the last 30 days, suggest demand is now also bending — not just being delayed by supply. **Microsoft's 1.5 GW self-build freeze (latest 10-K).** SemiAnalysis flagged in April that Microsoft had paused construction on more than 1.5 GW of self-built data center capacity originally scheduled to come online in 2025-2026. Microsoft's latest 10-K filing (covering fiscal year ended June 30, 2026, filed in late June) confirms the freeze persists — 'committed datacenter construction' line items did not grow at the rate analysts had previously modeled, and a portion of the 1.5 GW pipeline appears to have been moved to 2027-2028 timelines or canceled outright. Microsoft is also exiting more than 2 GW of non-binding lease contracts with third-party developers. The strategic context: Microsoft is shifting AI capacity demand from Microsoft self-builds to the OpenAI / Oracle / Stargate consortium, where Microsoft pays for compute as a service rather than owns the infrastructure directly. So 'Microsoft datacenter capex' is being substituted with 'Microsoft OpenAI compute spend,' but the aggregate hyperscaler buildout is smaller than the consensus number in April. **Sightline Climate's 2026 cancellation tracker.** Sightline (climate-tech industry tracker, Latitude Media's data partner) maintains a database of announced vs. canceled data center projects in the US. The 2026 dataset shows 9 explicitly canceled US data center projects. The 2024 dataset showed zero explicit cancellations. The 2025 dataset showed three. So the pattern is accelerating — not just delays (which were common) but explicit project cancellations. **Aggregate 30-50% delayed-or-canceled rate.** Industry trackers (Sightline plus Tech Insider plus dataset assembly from earnings calls) put the share of US data center projects originally planned for 2026 go-live that have been delayed or canceled at 30-50%. Whether the true number is closer to 30 or 50 depends on definition (does 'delayed 6 months' count?) but the directional signal is clear: 2026 will deliver substantially less capacity than was forecast a year ago. **Monterey Park CA Measure NDC — first ballot-measure permanent ban.** On June 2, 2026, voters in Monterey Park (population 60,269, eastern Los Angeles County, served by Southern California Edison) voted on Measure NDC, which proposed to amend the Monterey Park Municipal Code to permanently prohibit all data centers within city limits. The vote was 10,321 yes to 1,362 no — 88.34% approval. The measure was placed on the ballot by the City Council in March (unanimous vote) after residents organized opposition to a proposed 218,400 sq ft data center at 1977 Saturn Avenue intended to support AI workloads. This is structurally different from every other zoning action that has been catalogued in this newsletter. County and city moratoriums (Spartanburg, Woodbury, Cumberland, Jackson MO, Lexington KY, Imperial CA, Inver Grove Heights MN, Minneapolis MN, Hill County TX, etc.) are TEMPORARY. They expire after 6 months or 12 months and the local government has to take affirmative action to renew them. If the local political mood shifts during that window, the moratorium quietly sunsets and data centers can apply again. A ballot-measure-amended municipal code is different. Monterey Park's code now PERMANENTLY prohibits data centers. The only way to reverse the ban is another ballot measure passed by another 50%+1 of voters. The 88.34% margin makes that effectively impossible for the foreseeable future. The Saturn Avenue project is dead and no other project can replace it without amending the municipal code via citywide vote. The Monterey Park playbook is now copyable. Any community that wants a permanent ban (not just a 12-month pause) can route through the local ballot-measure process, which in most California cities requires either (a) a unanimous city council vote to place the measure on the ballot, or (b) a citizen petition with signatures from ~5% of registered voters. The Saturn Avenue opposition organizers can advise other CA communities — and the 88.34% margin gives a vivid talking point for organizing in any community that wants to copy the playbook.

Primary source · SemiAnalysis — Microsoft's Datacenter Freeze: 1.5GW Self-Build Slowdown & Lease Cancellation Misconceptions (Apr 2026) + SemiAnalysis X update referencing latest Microsoft 10-K (Microsoft FY26 10-K) + Tech Insider — U.S. AI Data Center Delays: 7 GW Capacity Crisis 2026 + Latitude Media + Sightline Climate 2026 cancellation tracker + ABC7 Los Angeles — Monterey Park voters approve Measure NDC, banning power-hungry data centers within city limits + Fox Business — California city votes to permanently ban data centers in first-of-its-kind measure + Ballotpedia Monterey Park CA Measure NDC + Monterey Park City Council Newsflash ↗