ComputeAssay

Delivery risk · DR-1 v0.1 · surveyed 2026-10-26

Will the capacity show up?

The compute market now runs on forward commitments — multi-year, non-cancelable, delivering 2026–2031. The question that prices them is not "what does a GPU-hour cost" but "will this tranche be energized, installed and running by the date in the contract." We grade the next unfinished phase of 10 announced AI sites on the ASSAY-1 Site & Grid fields (§2 H), publish a probability, and write it to an append-only, hash-chained ledger. Every forecast resolves on a date. The track record is the product: it cannot be backfilled.

Hold or finance capacity on one of these sites? Put the contract in the Commitment Book: it marks it against this forecast, posted prices, acceptance and transferability. Private to your browser.
SiteNext phasegrid_statusTargetDR gradeP(on time)P(≤6 mo late)
IREN Childress, Horizons 2–4
IREN → Microsoft
Horizons 2–4
150 MW
energized 2026-Q4 DR-B 0.69 65%85%
TeraWulf Lake Mariner, CB-4 (Fluidstack)
TeraWulf (Fluidstack tenant) → Fluidstack, with Google credit support. Reported, not confirmed by a primary source, as the New York site in Anthropic's Fluidstack program.
CB-4 (168 MW IT)
168 MW
energized 2026-H2 DR-B 0.65 62%83%
Cipher Digital Barber Lake
Cipher Digital (formerly Cipher Mining) → Fluidstack (Google backstops $1.73B of lease obligations)
First data halls (initial 168 MW lease; last halls Q1 2027)
MW n/d
energized 2026-Q4 DR-B 0.64 61%83%
Microsoft Fairwater, Datacenter 2
Microsoft → Microsoft (self-use; serves OpenAI and Microsoft AI)
Datacenter 2
MW n/d
interconnect agreement signed 2028 DR-B 0.60 58%81%
SpaceXAI Colossus II (Anthropic capacity)
SpaceX (SpaceXAI) → Anthropic (share of Colossus II not disclosed); SpaceXAI also trains here
All SpaceX-contracted capacity delivered to Anthropic
MW n/d
hybrid 2026-12 DR-C 0.48 48%74%
Applied Digital Polaris Forge 1, Building 3
Applied Digital → CoreWeave
Building 3
150 MW
unknown 2027 DR-C 0.46 47%73%
AWS New Carlisle (Project Rainier), buildings 19–32
Amazon Web Services → Anthropic (Project Rainier)
Phase 2 (SBN210, buildings 19–32, ~767 MW)
767 MW
unknown 2028-Q1 DR-C 0.46 47%73%
Stargate Abilene, final two buildings
Crusoe (Oracle operates OCI capacity inside) → Oracle → OpenAI
Buildings 7–8 (no operator date; Q4 2026 is a third-party estimate)
MW n/d
hybrid 2026-Q4 DR-C 0.41 43%69%
Nebius New Jersey (DataOne Vineland)
Nebius (site developed by DataOne Vineland) → Microsoft
Phase 2 expansion / full-site completion
MW n/d
behind the meter 2026-12 DR-D 0.30 34%62%
Nscale Monarch Compute Campus (Anthropic building)
Nscale → Anthropic (agreements signed 2026-08-25, up to ~$44.6B)
First building for Anthropic (~460 MW, press figure)
460 MW
behind the meter 2027-Q4 DR-D 0.28 32%60%

Ledger: forecasts.jsonl · 11 entries · head c2d0bacaeffd92354a943e708ac5c049428efc1eff94de339a221d9296fc0eaf · 0 resolved so far. Data: sites.json (CC BY 4.0). Verify the chain: python3 verify_ledger.py forecasts.jsonl (script).

Method (DR-1 v0.1)

Each site's next unfinished phase gets five scores from public evidence only — filings, utility and ISO records, operator and offtaker statements, credible trade press. Every input is cited below its card.

ComponentWeightHow it scores
Power (grid_status of the next phase)35%energized 1.0 · interconnect agreement signed 0.75 · hybrid grid + on-site 0.7 · behind-the-meter generation 0.6 · in interconnection queue 0.3 · unknown 0.2
Build progress25%next phase complete/commissioning 1.0 · an earlier phase operating and the next under construction (dated evidence) 0.8 · under construction, evidence within 120 days 0.6 · construction evidence older than 120 days 0.4 · announced only 0.2
Hardware15%accelerators installed in the next phase 1.0 · installed in an earlier phase, or delivery disclosed 0.6 · not disclosed 0.3
Operator track record25%prior sites delivered on time (evidence) 1.0 · mixed or limited history 0.6 · no history 0.5 · documented slips 0.3
Delay penalty—−0.10 per distinct, sourced delay signal in the last 12 months (slipped date, permit fight, financing or equipment trouble), capped at −0.30

Score S = Σ weight × component − delay penalty, clamped to [0, 1]. Grades: DR-A S ≥ 0.80 · DR-B 0.60–0.80 · DR-C 0.40–0.60 · DR-D < 0.40. Probabilities: P(on time) = 0.10 + 0.80 × S; P(within 6 months of target) = P + (1 − P) × (0.3 + 0.4 × S), capped at 0.97 — a weak site is less likely to recover a slip quickly. Rounded to whole percentage points.

What this is not. v0.1 weights are stated priors, not fitted coefficients — there is no resolved history yet to fit them to. They will be refit in public once resolutions accumulate, and the refit itself is a ledger event. A grade describes the probability that announced capacity is physically energized on schedule; it says nothing about the creditworthiness of the operator or offtaker and is not investment advice. Corrections with a source move a grade the same week: corrections.

IREN Childress, Horizons 2–4 DR-B

Childress, Texas, USA · ERCOT (IREN-owned on-site substations) · operator IREN · offtaker Microsoft

Next unfinished phaseHorizons 2–4 — 150 MW; public target 2026-Q4 (irisenergy.gcs-web.com)
Announced capacity200 MW IT across Horizons 1–4 (4 × 50 MW); 750 MW campus power
grid_status (§2 H)energized — campus substations energized; Horizon 1 running for Microsoft since August 2026
Power sourceERCOT grid via IREN-owned substations
firm / interruptible MWn/d / n/d
HardwareNVIDIA GB300 NVL72 bought from Dell (~$5.8B order); Horizon 1 operating; installed count not disclosed
Contract disclosureIREN 8-K Ex. 99.1, 2025-11-03 (~$9.7B, 5 years, 20% prepayment)
Scorepower 1.00 · build 0.80 · hardware 0.60 · track record 0.60 · delay penalty −0.10 → 0.69
ForecastP(next phase energized by 2026-Q4) = 65%; within 6 months of target = 85%. Resolves 2026-12-31. Ledger #2 a647ec832687e412

Progress evidence

Delay signals

Power is in place, so the remaining risk is install and acceptance. Most of the three halls are guided to land late in the quarter, which leaves little slack. The 45-day Horizon 2 claim is unconfirmed but counted, conservatively. The earlier re-phasing from an H2 2025 target (secondary source) is reflected in the track-record score, not as a penalty.

TeraWulf Lake Mariner, CB-4 (Fluidstack) DR-B

Barker, Niagara County, New York, USA · NYISO · operator TeraWulf (Fluidstack tenant) · offtaker Fluidstack, with Google credit support. Reported, not confirmed by a primary source, as the New York site in Anthropic's Fluidstack program.

Next unfinished phaseCB-4 (168 MW IT) — 168 MW; public target 2026-H2 (investors.terawulf.com)
Announced capacity378 MW IT contracted to Fluidstack (CB-3 42 + CB-4 168 + CB-5 168, per secondary sources)
grid_status (§2 H)energized — site energized; 102 MW online after CB-3; first CB-4 hall in commissioning
Power sourceGrid (NYISO), former coal-plant site with transmission
firm / interruptible MWn/d / n/d
HardwareNot disclosed by primary sources (third-party estimate: Google TPU)
Contract disclosureTeraWulf Q2 2026 results (Fluidstack leases; Google $600M credit support activated on CB-3)
Scorepower 1.00 · build 0.80 · hardware 0.30 · track record 0.60 · delay penalty −0.10 → 0.65
ForecastP(next phase energized by 2026-H2) = 62%; within 6 months of target = 83%. Resolves 2026-12-31. Ledger #10 c2d0bacaeffd9235

Progress evidence

Delay signals

Power is in place and the first CB-4 hall is commissioning, so the H2 2026 target is reachable. But each prior building has slipped by weeks to a quarter. New York's July 2026 permitting moratorium covers new applications, so it bears on expansion beyond CB-5, not on this phase, and is not penalised.

Cipher Digital Barber Lake DR-B

Colorado City, Mitchell County, Texas, USA · ERCOT (300 MW interconnection approvals) · operator Cipher Digital (formerly Cipher Mining) · offtaker Fluidstack (Google backstops $1.73B of lease obligations)

Next unfinished phaseFirst data halls (initial 168 MW lease; last halls Q1 2027); public target 2026-Q4 (sec.gov)
Announced capacity207 MW critical IT (168 + 39) within 300 MW gross
grid_status (§2 H)energized — on-site substation under 300 MW ERCOT approvals; tenant in beneficial use since August 2026
Power sourceERCOT grid via on-site substation
firm / interruptible MWn/d / n/d
HardwareTenant network racks and CDUs being installed; accelerator type not disclosed
Contract disclosureCipher 8-K, 2026-09-24 (revised hall schedule, cost-share, 20-year term)
Scorepower 1.00 · build 0.60 · hardware 0.60 · track record 0.60 · delay penalty −0.10 → 0.64
ForecastP(next phase energized by 2026-Q4) = 61%; within 6 months of target = 83%. Resolves 2026-12-31. Ledger #4 70c748459027e518

Progress evidence

Delay signals

Delivery has already slipped once, from September 2026 to Q4 2026–Q1 2027, on tenant design changes. Power is in place, and Cipher's other site delivered two months early. The cost-overrun split (Cipher bears the first $359.3M) is a financing exposure, not a delay signal, so it is not penalised.

Microsoft Fairwater, Datacenter 2 DR-B

Mount Pleasant, Wisconsin, USA · MISO; We Energies; ATC transmission · operator Microsoft · offtaker Microsoft (self-use; serves OpenAI and Microsoft AI)

Next unfinished phaseDatacenter 2; public target 2028 (news.microsoft.com)
Announced capacityNo MW figure published by Microsoft; third-party estimates ~369 MW IT for Datacenter 1
grid_status (§2 H)interconnect_agreement_signed — 15-year We Energies electric service contract signed 2026-07-16 (a utility service agreement, not a MISO interconnection agreement); Datacenter 1 energized
Power sourceWe Energies grid; Microsoft subscribed to a planned gas plant awaiting PSC approval; solar PPAs
firm / interruptible MWn/d / n/d
HardwareNVIDIA GB200 NVL72 operating in Datacenter 1; Datacenter 2 hardware not disclosed
Contract disclosureNo compute offtake contract public; utility service contract reported
Scorepower 0.75 · build 0.80 · hardware 0.60 · track record 1.00 · delay penalty −0.20 → 0.60
ForecastP(next phase energized by 2028) = 58%; within 6 months of target = 81%. Resolves 2028-12-31. Ledger #7 c54b987cd073f6be

Progress evidence

Delay signals

Datacenter 1 came online roughly on schedule. Datacenter 2's whole-year 2028 target and Microsoft's balance sheet make it the most robust phase here, but the supporting generation and substation dates are slipping in regulatory filings.

SpaceXAI Colossus II (Anthropic capacity) DR-C

Memphis, Tennessee / Southaven, Mississippi, USA · TVA via MLGW (documented for Colossus I) plus on-site gas generation in Southaven · operator SpaceX (SpaceXAI) · offtaker Anthropic (share of Colossus II not disclosed); SpaceXAI also trains here

Next unfinished phaseAll SpaceX-contracted capacity delivered to Anthropic; public target 2026-12 (gizmodo.com)
Announced capacityNearly 2 GW compute target (Reuters via Wikipedia); 1.2 GW permanent gas plant under construction
grid_status (§2 H)hybrid — mostly temporary on-site gas turbines and Megapacks, plus TVA/MLGW grid; permanent 41-turbine plant delayed
Power sourceTemporary gas turbines (to be retired by 2027-07-14), 1.2 GW permanent gas plant under construction, Megapacks, grid
firm / interruptible MWn/d / n/d
HardwareNVIDIA GB200/GB300 deployed across Colossus II buildings (secondary counts)
Contract disclosureAnthropic Form S-1, 2026-10-26 (up to $120.5B through 2029; ~$3.1B/month at full delivery)
Scorepower 0.70 · build 0.80 · hardware 0.60 · track record 1.00 · delay penalty −0.30 → 0.48
ForecastP(next phase energized by 2026-12) = 48%; within 6 months of target = 74%. Resolves 2026-12-31. Ledger #6 a9449351b0592b24

Progress evidence

Delay signals

This operator builds faster than anyone in the set, and the compute is largely in place. The risk is legal and in the power: delivery through 2026 depends on temporary turbines that are being litigated and must be retired by July 2027, while the permanent plant is behind schedule. After the initial periods end (January and March 2027), either side can terminate on 90 days' notice.

Applied Digital Polaris Forge 1, Building 3 DR-C

Ellendale, North Dakota, USA · Montana-Dakota Utilities (RTO not stated in sources) · operator Applied Digital · offtaker CoreWeave

Next unfinished phaseBuilding 3 — 150 MW; public target 2027 (sec.gov)
Announced capacity400 MW critical IT leased to CoreWeave (250 MW ready for service as of 2026-10-01); campus designed to 1 GW
grid_status (§2 H)unknown — campus substation energized for Buildings 1–2; no interconnection capacity figure found for Building 3
Power sourceGrid (Montana-Dakota Utilities)
firm / interruptible MWn/d / n/d
HardwareTenant (CoreWeave) accelerators not disclosed
Contract disclosureApplied Digital 10-K FY2026 (400 MW, ~15-year leases; lessee may terminate on significant construction delay)
Scorepower 0.20 · build 0.80 · hardware 0.30 · track record 1.00 · delay penalty −0.10 → 0.46
ForecastP(next phase energized by 2027) = 47%; within 6 months of target = 73%. Resolves 2027-12-31. Ledger #3 805bdb00bf293df3

Progress evidence

Delay signals

The best delivery record in this set: four phases at ready-for-service, three on or near guide. What holds the grade down is Building 3's power: no interconnection figure is public, and the target is only a calendar year.

AWS New Carlisle (Project Rainier), buildings 19–32 DR-C

New Carlisle, St. Joseph County, Indiana, USA · PJM / Indiana Michigan Power (AEP) · operator Amazon Web Services · offtaker Anthropic (Project Rainier)

Next unfinished phasePhase 2 (SBN210, buildings 19–32, ~767 MW) — 767 MW; public target 2028-Q1 (epoch.ai)
Announced capacity~2.25 GW facility at full build-out, 32 buildings (press-reported, not Amazon-stated); 18 buildings operating
grid_status (§2 H)unknown — phase 1 is grid-fed and energized; for phase 2, the AEP 345 kV substations' December 2026 target comes only from a secondary source, and no interconnection agreement was found
Power sourceUtility grid (I&M / PJM); backup diesel only
firm / interruptible MWn/d / n/d
HardwareAWS Trainium2 operating across Project Rainier; Trainium3 reportedly being deployed here (secondary)
Contract disclosureNo site-level terms; Amazon-owned capacity sold to Anthropic as cloud service
Scorepower 0.20 · build 0.60 · hardware 0.60 · track record 1.00 · delay penalty −0.10 → 0.46
ForecastP(next phase energized by 2028-Q1) = 47%; within 6 months of target = 73%. Resolves 2028-03-31. Ledger #9 ee7468a2e6f322f5

Progress evidence

Delay signals

Amazon has the best execution record on this campus: 18 buildings were running about 20 months after groundbreaking. But it has published no date for phase 2. Sources disagree on whether work has started: one says under construction, satellite imagery shows cleared land with no foundations as of June 2026. The build score takes the conservative reading. Target is Epoch's extrapolation.

Stargate Abilene, final two buildings DR-C

Abilene, Texas, USA · ERCOT · operator Crusoe (Oracle operates OCI capacity inside) · offtaker Oracle → OpenAI

Next unfinished phaseBuildings 7–8 (no operator date; Q4 2026 is a third-party estimate); public target 2026-Q4 (epoch.ai)
Announced capacity1.2 GW facility across 8 buildings; Oracle reports 6 of 8 buildings / 618 MW delivered (2026-09-10 call)
grid_status (§2 H)hybrid — ERCOT grid via on-site substations (1 GW substation appears complete) plus on-site gas turbines; a further on-site generation air permit is pending
Power sourceERCOT grid plus on-site natural-gas turbines
firm / interruptible MWn/d / n/d
HardwareNVIDIA GB200 NVL72 since June 2025; Oracle reports 131k GPUs delivered in its fiscal Q1 FY27 (call transcript)
Contract disclosureNo site-level lease terms public; delivery reported on Oracle's earnings calls
Scorepower 0.70 · build 0.80 · hardware 0.60 · track record 0.30 · delay penalty −0.20 → 0.41
ForecastP(next phase energized by 2026-Q4) = 43%; within 6 months of target = 69%. Resolves 2026-12-31. Ledger #8 d3bec20a247d4e3c

Progress evidence

Delay signals

Fast by any standard (618 MW in about a year), but each phase has landed one to two quarters after its stated target. Nobody has given a date for the last two buildings, and the Texas permit halt could catch the pending on-site generation permit.

Nebius New Jersey (DataOne Vineland) DR-D

Vineland, Cumberland County, New Jersey, USA · On-site generation; grid connection not verified from a primary source · operator Nebius (site developed by DataOne Vineland) · offtaker Microsoft

Next unfinished phasePhase 2 expansion / full-site completion; public target 2026-12 (newjerseymonitor.com)
Announced capacityUp to 300 MW design capacity (Nebius; IT vs facility not stated); 350 MW maximum across 14 halls per developer
grid_status (§2 H)behind_the_meter — Bloom fuel cells on on-site LNG (first block ready Oct 2026) plus 62 temporary gas generators that NJDEP found operating without air permits
Power sourceOn-site natural-gas fuel cells (Bloom) and temporary gas generators
firm / interruptible MWn/d / n/d
HardwareAccelerator model and count at Vineland not disclosed
Contract disclosureNebius Form 6-K, 2025-09-08 (~$17.4B; late-delivery termination and liquidated damages)
Scorepower 0.60 · build 0.80 · hardware 0.30 · track record 0.60 · delay penalty −0.30 → 0.30
ForecastP(next phase energized by 2026-12) = 34%; within 6 months of target = 62%. Resolves 2026-12-31. Ledger #1 036c9b60f4af29db

Progress evidence

Delay signals

Nebius reports every Microsoft tranche due to date delivered, so the contract is performing today. The risk is the power that serves it: the generators NJDEP fined must be permitted or switched off, and the permanent fuel-cell blocks are only starting to come online. Delay signals hit the 0.30 cap.

Nscale Monarch Compute Campus (Anthropic building) DR-D

Mason County, West Virginia, USA · None at launch: islanded behind-the-meter gas microgrid · operator Nscale · offtaker Anthropic (agreements signed 2026-08-25, up to ~$44.6B)

Next unfinished phaseFirst building for Anthropic (~460 MW, press figure) — 460 MW; public target 2027-Q4 (techtimes.com)
Announced capacityInitial phase 2 GW gross / 1.37 GW IT online 1H 2028 (S-1); Anthropic building ~460 MW (press, not S-1)
grid_status (§2 H)behind_the_meter — Caterpillar G3500 gas gensets (deliveries Sep 2026–Aug 2027), no supply interconnection; generation not yet online
Power sourceOn-site natural-gas reciprocating gensets plus batteries
firm / interruptible MWn/d / n/d
HardwareNVIDIA Vera Rubin NVL72 specified; no delivery evidence
Contract disclosureNscale Form S-1, 2026-09-18 (Anthropic Services Agreements)
Scorepower 0.60 · build 0.60 · hardware 0.30 · track record 0.30 · delay penalty −0.20 → 0.28
ForecastP(next phase energized by 2027-Q4) = 32%; within 6 months of target = 60%. Resolves 2027-12-31. Ledger #5 0cd9e4c7887617eb

Progress evidence

Delay signals

Greenfield, off-grid, with financing not yet committed per the S-1. The operator's Narvik site is about six months late, and Microsoft left this campus before Anthropic signed. Reported terms let Anthropic terminate late tranches (per an analyst reading of the S-1, not verified in the filing text), so a slip here can cancel capacity, not just delay it.