Compute / Build-out · week to 25 Sept 2026
The build-out, floor by floor, one week at a time.
From models at the top to permits at the bottom: what switched on, what was announced and what got stuck in the week from 19 Sept 2026 to 25 Sept 2026. Every mark is a dated row with its source.
The build-out mapRows, never forecasts
- Switched on
- Compute market 1
- Announced
- Models and demand 9 · Compute market 1 · Data centres 3
- Stuck
- Models and demand 4 · Accelerators and fab 1 · Data centres 1 · Power and grid (context) 1 · gone quiet: State commercial power sales
- Biggest constraint move
- Date moved: Barber Lake · now "between the fourth quarter of 2026 and the first quarter of 2027"
- Next due
- SpaceX · "by September 30, 2026"
This week
1 · 13 · 7
switched on · announced · stuck, counted per floor and never added across families · 6 series not read
Hover or tap
Each floor is a layer of the build-out; each mark one dated row of the week
Solid: switched on, as filed or measured. Hollow: announced. Hanging: stuck. A faint stub: a series we list but cannot read.
Models and demand
- Model releases: all 1,125 models (2026-09-19)
- Model releases: all 1,258 models (2026-09-20)
- Model releases: all 1,426 models (2026-09-21)
- Model releases: all 1,650 models (2026-09-22)
- Model releases: all 1,615 models (2026-09-23)
- Model releases: all 1,762 models (2026-09-24)
- Model releases: size · 30 in the week (2026-09-24)
- Model releases: all 1,630 models (2026-09-25)
- Model releases: licence · 31 in the week (2026-09-25)
- Provider incidents: Anthropic · 1 in the week (2026-09-22)
- Provider incidents: Fireworks · 8 in the week (2026-09-24)
- Provider incidents: Cloudflare · 26 in the week (2026-09-25)
- Provider incidents: OpenAI · 6 in the week (2026-09-25)
Money
- Data-centre debt filed: not collected
Compute market
- Vast.ai offers read (1 term) (2026-09-25)
- Anthropic commits $11.6B over seven years to Akamai Cloud for CPU workloads; Akamai issues Anthropic a warrant for up to ~5% (2026-09-24)
Accelerators and fab
- Export controls: 2026-19537 -2 days (2026-09-22)
Memory
- HBM statements: kept by hand
- Korean memory exports: key parked
Optics
Data centres
- Stated: cipher-mining · contracted · Follow-on lease (a leading AI lab, after Fluidstack's term) (2026-09-25)
- Promised: cipher-mining · delivered · Data halls, re-phased (2026-09-25)
- An unnamed AI lab commits to a 10-year Barber Lake lease following Fluidstack's term, ~$5.2B; Fluidstack lease re-phased (2026-09-25)
- Date moved: Barber Lake · now "between the fourth quarter of 2026 and the first quarter of 2027" (2026-09-25)
Power and grid (context)
- Gas generation on time: 11.4% of megawatts due in 2026-08 (2026-09-24)
- State commercial power sales: stale
- Transformer and turbine imports: key parked
Permits and land
- Local votes against: kept by hand
Floor by floor
Models and demand
Announced · 9
- 19 Sept 2026Model releases: all 1,125 models
- 20 Sept 2026Model releases: all 1,258 models
- 21 Sept 2026Model releases: all 1,426 models
- 22 Sept 2026Model releases: all 1,650 models
- 23 Sept 2026Model releases: all 1,615 models
- 24 Sept 2026Model releases: all 1,762 models
- 24 Sept 2026Model releases: size · 30 in the week
- 25 Sept 2026Model releases: all 1,630 models
- 25 Sept 2026Model releases: licence · 31 in the week
Stuck · 4
- 22 Sept 2026Provider incidents: Anthropic · 1 in the week
- 24 Sept 2026Provider incidents: Fireworks · 8 in the week
- 25 Sept 2026Provider incidents: Cloudflare · 26 in the week
- 25 Sept 2026Provider incidents: OpenAI · 6 in the week
Money
Nothing filed this week.
Not read this week: Data-centre debt filed (not collected)
Compute market
Switched on · 1
- 25 Sept 2026Vast.ai offers read (1 term)
Accelerators and fab
Stuck · 1
- 22 Sept 2026Export controls: 2026-19537 -2 days
Memory
Nothing filed this week.
Not read this week: HBM statements (kept by hand) · Korean memory exports (key parked)
Optics
Nothing filed this week.
Data centres
Announced · 3
- 25 Sept 2026Stated: cipher-mining · contracted · Follow-on lease (a leading AI lab, after Fluidstack's term)
- 25 Sept 2026Promised: cipher-mining · delivered · Data halls, re-phased
- 25 Sept 2026An unnamed AI lab commits to a 10-year Barber Lake lease following Fluidstack's term, ~$5.2B; Fluidstack lease re-phased
Power and grid (context)
Stuck · 1
Not read this week: State commercial power sales (stale) · Transformer and turbine imports (key parked)
Permits and land
Nothing filed this week.
Not read this week: Local votes against (kept by hand)
The pipeline, Texas · three ladders, never added
What the campuses filed, what ERCOT counts in its own queue, and what Epoch estimates. Each is its own family, kept apart.
Filed as energized
0 MW
across the 7 Texas campuses on the register
Promised by now, not yet filed
none
Campus · stage
Hover or tap a bar
Solid is filed as happened; hollow is promised. Height is the largest stated figure; each basis is listed apart, never added.
- Abernathy: Contracted: 240 MW gross, 168 MW critical IT, filed 28 Oct 2025; Delivered: 168 MW critical IT, promised in the second half of 2026
- Barber Lake: Contracted: 244 MW up to (a ceiling), 168 MW critical IT, filed 25 Sept 2026; Delivered: 168 MW critical IT, promised between the fourth quarter of 2026 and the first quarter of 2027
- Beacon Point: Contracted: 352 MW IT load, filed 6 May 2026
- CoreWeave Denton: Contracted: 260 MW critical IT, filed 27 Feb 2025
- Helios: Contracted: 526 MW critical IT, filed 5 Aug 2025; Delivered: 200 MW gross, 133 MW critical IT, filed 5 Aug 2026; Delivered: 260 MW critical IT, promised 2027
- IREN Childress: Contracted: 200 MW IT load, 60 MW up to (a ceiling), filed 7 May 2026; Delivered: no megawatts stated, promised by year-end
- Stargate Abilene: Under construction: 1,200 MW basis unstated, filed 21 May 2025; Energized: 1,200 MW basis unstated, promised in mid-2026
Drawn against asked
4,316 MW / 321,000 MW
Observed monthly peak (16 Sept 2026) against no studies submitted (13 May 2026). ERCOT's own buckets, each at its own date.
Bucket
Hover or tap a ring
Each ring's area is its megawatts. Buckets are ERCOT's own, separate counts, not a running total.
- No studies submitted: 321,000 MW, ERCOT, 13 May 2026
- Under ERCOT review: 93,700 MW, ERCOT, 13 May 2026
- §9.5 requirements met: 22,000 MW, ERCOT, 13 May 2026
- Approval to energize: 9,456 MW, ERCOT, 16 Sept 2026
- Observed energized: 5,900 MW, ERCOT, 13 May 2026
- Observed monthly peak: 4,316 MW, ERCOT, 16 Sept 2026
Epoch’s estimate
—
Not read yet: the first Epoch AI snapshot
Demand meter · each grid against itself a year earlier
Electricity each grid operator served in the week to 25 Sept 2026, from EIA’s hourly grid data, against the same seven days a year earlier. Weather moves these from week to week, so a change on the year is not all data centres. Each grid is its own figure; none is added to another.
- PJM (Mid-Atlantic and northern Virginia)15,088 GWh15,826 GWh a year ago−4.7%
- ERCOT (Texas)11,468 GWh10,484 GWh a year ago+9.4%
- Southern Company (Georgia and Alabama)5,044 GWh4,956 GWh a year ago+1.8%
- MISO (Midwest)12,953 GWh12,817 GWh a year ago+1.1%
- Tennessee Valley Authority3,534 GWh3,246 GWh a year ago+8.9%
- Duke Energy Carolinas2,110 GWh2,162 GWh a year ago−2.4%
- Southwest Power Pool5,993 GWh5,641 GWh a year ago+6.2%
- Arizona Public Service905 GWh902 GWh a year ago+0.3%
Power sold to commercial customers, August 2026
The closest public read of data-centre load, from EIA’s monthly survey of utilities. It lands about two months after the month it counts.
- Virginia8,503 GWh8,462 GWh a year ago+0.5%
- Texas18,258 GWh16,945 GWh a year ago+7.8%
- Georgia6,132 GWh5,419 GWh a year ago+13.2%
- Ohio6,010 GWh5,544 GWh a year ago+8.4%
- Arizona4,548 GWh4,051 GWh a year ago+12.3%
Henry Hub gas
$2.95 per MMBtu
September 2026 average, from EIA’s Short-Term Energy Outlook · −0.7% on the year. The fuel behind most new generation: context only.
Bottlenecks
Grid basics, explained →Turbine backlogLast reading 28 Oct 2026
Grid equipment pricesLast reading 1 Sept 2026
Weekly grid demandLast reading 30 Oct 2026
State commercial power salesLast reading 1 Aug 2026
Henry Hub gas priceLast reading 1 Sept 2026
Transformer and turbine importskey parked
Local votes againstkept by hand
What the map reads, and how fresh it is
- Model releases4 Nov 2026fresh
- Provider incidents5 Nov 2026fresh
- Model retirements14 May 2028fresh
- Data-centre debt filed—not collected
- Taiwan monthly revenue1 Sept 2026fresh
- MLPerf rounds16 Sept 2026fresh
- Export controls20 Nov 2026fresh
- HBM statements—kept by hand
- Korean memory exports—key parked
- Optics backlog3 Sept 2026fresh
- Data-centre construction spend1 Sept 2026fresh
- Turbine backlog28 Oct 2026fresh
- Grid equipment prices1 Sept 2026fresh
- Weekly grid demand30 Oct 2026fresh
- State commercial power sales1 Aug 2026stale
- Henry Hub gas price1 Sept 2026fresh
- Transformer and turbine imports—key parked
- Local votes against—kept by hand
How the map is kept
- The week runs Saturday to Friday, the same week as the compute board.
- Switched on means filed or measured: a filing that says energized or delivered, a price the Tape wrote, a figure a statistics office published.
- Announced means a promise, an order or a deal: hollow until something switches on.
- Stuck means a date moved, a promise came due unmet, a price feed went quiet, or a rule or vote added a constraint.
- Filed figures, ERCOT’s meter, Epoch’s estimate and EIA’s generator data are separate families and are never added together.
- A floor with no rows says so. A series we list but cannot read shows as not read, with the reason.
- Power and the grid are here as context for the build-out. Nothing on this page is a trade idea.