Alphabet has contracted for 500 megawatts from Kairos Power (KP-FHR fluoride-salt-cooled reactors) with targeted deployments by 2030 — the largest corporate advanced-fission procurement to date and a template for hyperscaler-utility-PPA scaling.
Predictor: Alphabet
Prediction text
Alphabet has contracted for 500 megawatts from Kairos Power (KP-FHR fluoride-salt-cooled reactors) with targeted deployments by 2030 — the largest corporate advanced-fission procurement to date and a template for hyperscaler-utility-PPA scaling. | Kairos KP-FHR first reactor commissioning
Key catalyst: Kairos KP-FHR first reactor commissioning
Watch events: Kairos NRC license; first reactor fuel loading; Alphabet additional reactor orders
Resolution evidence
Oct 2024 Alphabet-Kairos agreement publicly announced; first reactor target 2030; NRC construction permit for Hermes 2 under review. Timeline slippage to 2031-2032 possible.
Predictor: Alphabet
Evidence about this node from Alphabet is multiplied by κ in /api/intake. Lower κ = less weight; floors at 0.10 (effectively silenced) and caps at 1.00 (full weight).
Reference class
This node isn't linked to a reference class. The Bayesian update applies without outside-view blending.
Probability over time
Milestone chain
- 2026-04-17overdueHermes 2 demonstration plant breaks ground (announced April 2026)How: Confirmed groundbreaking ceremony at Tennessee site; GlobeNewswire / Kairos Power releaseSource: https://www.globenewswire.com/news-release/2026/04/17/3276457/0/en/kairos-power-breaks-ground-on-hermes-2-demonstration-plant.htmlconf 95%
- 2026-06-01 → 2028-06-30pendingCascade: second hyperscaler announces >250 MW advanced-fission PPA templateHow: Microsoft, Amazon, Meta, or Oracle signs PPA with X-energy, NuScale, TerraPower, or Kairos at >=250 MW scale modeled on Alphabet-Kairos structureSource: Internal estimate; Microsoft-TerraPower and Amazon-X-energy precedents already existconf 65%
- 2027-06-01 → 2028-12-31pendingHermes 1 reactor first criticality at Oak RidgeHow: NRC issues operating license amendment confirming first criticality; Kairos Power and DOE press releaseSource: https://www.energy.gov/ne/articles/kairos-power-starts-construction-hermes-reactorconf 65%
- 2027-06-01 → 2029-06-30pendingFirst commercial KP-FHR reactor begins construction at TVA / utility-host siteHow: NRC issues construction permit for first commercial 75-MWe KP-FHR module under Alphabet PPA; concrete pour reportedSource: https://www.kairospower.com/locations/tennesseeconf 50%
- 2030-02-16pendingQ1 window check-in (25%)
- 2030-04-04pendingQ2 window check-in (50%)
- 2030-05-20pendingQ3 window check-in (75%)
- 2029-12-01 → 2031-06-30pendingAlphabet 10-K or sustainability report discloses first MWh of KP-FHR deliveryHow: Alphabet annual report references actual delivered (not contracted) MWh from Kairos plant against the 500 MW PPASource: Internal estimate based on standard PPA disclosure cadenceconf 40%
What if this resolves?
Click a button to clamp this prediction and run a Gibbs sample. Returns the predictions whose marginals shift most. ~30s per run; ideal for stress-testing "if X resolves, what else moves?"
Evidence chain
Raw metadata
{
"trf": 1,
"kappa": 0.5,
"base_rate": null,
"predictor": "Alphabet",
"total_llr": -0.4054651081081644,
"grace_days": 7,
"bayesian_v2": true,
"prior_logit": 0.2006706954621514,
"bayes_factor": "1.2:1 against",
"blend_reason": "no reference_class linked",
"inside_prior": 0.55,
"kappa_source": "predictor_table",
"n_milestones": 1,
"blend_applied": false,
"contributions": [
{
"llr": -0.4054651081081644,
"kind": "llm_pre_event",
"kappa": 0.475,
"label": "Hermes 2 demonstration plant breaks ground (announced April 2026)",
"weight": 0.4,
"strength": "weak",
"confidence": 0.95,
"source_url": "https://www.globenewswire.com/news-release/2026/04/17/3276457/0/en/kairos-power-breaks-ground-on-hermes-2-demonstration-plant.html",
"adjusted_llr": -0.19259592635137807,
"expected_date": "2026-04-17",
"measurement_criterion": "Confirmed groundbreaking ceremony at Tennessee site; GlobeNewswire / Kairos Power release"
}
],
"evidence_kind": "metadata_milestone_miss_sweep",
"inside_source": "prior_prob",
"inside_weight": 0.3,
"outside_weight": 0.7,
"posterior_prob": 0.5020186813092178,
"posterior_logit": 0.008074769110773344,
"predictor_brier": null,
"inside_posterior": 0.5020186813092178,
"blended_posterior": 0.5020186813092178,
"reference_class_id": null,
"total_adjusted_llr": -0.19259592635137807,
"predictor_n_resolved": 0
}Network propagation neighbors
No propagation data yet. Run inference/.venv/bin/python scripts/ops/run_loopy_belief_propagation.py on the droplet, or wait for the Sunday 02:00 UTC weekly cron.
Ticker exposure
Beneficiaries (22)
Prerequisites (0)
| Type | Pred | Title | Domain | Lag |
|---|---|---|---|---|
| No prerequisites | ||||
Dependents (0)
| Type | Pred | Title | Domain | Lag |
|---|---|---|---|---|
| No dependents | ||||
Validations (1)
| Observed at | Status | By | Notes |
|---|---|---|---|
| 2026-04-29 | partial | thesis_timeline_v1.0_import | Oct 2024 Alphabet-Kairos agreement publicly announced; first reactor target 2030; NRC construction permit for Hermes 2 under review. Timeline slippage to 2031-2032 possible. |
Linked documents (2)
| Sim | Source | Title | Market prob | Polarity | Reviewed | Published |
|---|---|---|---|---|---|---|
| 0.549 | edgar_8k | KBR, INC. (KBR) (CIK 0001357615) | — | mentions | pending | 2026-05-05 |
| 0.549 | edgar_8k | KBR, INC. (KBR) (CIK 0001357615) | — | mentions | pending | 2026-05-18 |
Raw metadata
{
"nia": false,
"qty": "500 MW",
"mode": "OBSERVATION+FORECAST",
"role": "Cited-Firm",
"context": "Already-announced commitment validates INF_050 SMR-co-location thesis. Couples with AWS-Talen, Microsoft-Constellation, Oracle-SMR-trio, Meta-Three-Mile-Island deals.",
"to_year": 2030,
"conv_cues": "announced deal; explicit MW target; explicit year",
"direction": "NUMERIC_TARGET",
"from_year": 2030,
"timeframe": "by 2030",
"conv_level": "HIGH",
"milestones": [
{
"kind": "llm_pre_event",
"label": "Hermes 2 demonstration plant breaks ground (announced April 2026)",
"source": "https://www.globenewswire.com/news-release/2026/04/17/3276457/0/en/kairos-power-breaks-ground-on-hermes-2-demonstration-plant.html",
"status": "overdue",
"weight": 0.4,
"ordinal": -7,
"source_id": null,
"confidence": 0.95,
"source_url": "https://www.globenewswire.com/news-release/2026/04/17/3276457/0/en/kairos-power-breaks-ground-on-hermes-2-demonstration-plant.html",
"expected_date": "2026-04-17",
"miss_emitted_at": "2026-05-02T22:07:21.384228+00:00",
"miss_emitted_by": "metadata_milestone_sweep",
"research_origin": "training",
"measurement_criterion": "Confirmed groundbreaking ceremony at Tennessee site; GlobeNewswire / Kairos Power release"
},
{
"kind": "llm_post_event",
"label": "Cascade: second hyperscaler announces >250 MW advanced-fission PPA template",
"source": "Internal estimate; Microsoft-TerraPower and Amazon-X-energy precedents already exist",
"status": "pending",
"weight": 0.4,
"ordinal": -6,
"source_id": null,
"confidence": 0.65,
"expected_date": "2027-06-16",
"research_origin": "training",
"expected_date_range": {
"to": "2028-06-30",
"from": "2026-06-01"
},
"measurement_criterion": "Microsoft, Amazon, Meta, or Oracle signs PPA with X-energy, NuScale, TerraPower, or Kairos at >=250 MW scale modeled on Alphabet-Kairos structure"
},
{
"kind": "llm_pre_event",
"label": "Hermes 1 reactor first criticality at Oak Ridge",
"source": "https://www.energy.gov/ne/articles/kairos-power-starts-construction-hermes-reactor",
"status": "pending",
"weight": 0.4,
"ordinal": -5,
"source_id": null,
"confidence": 0.65,
"source_url": "https://www.world-nuclear-news.org/articles/regulator-extends-hermes-1-reactor-construction-deadline",
"expected_date": "2028-03-16",
"research_origin": "training",
"expected_date_range": {
"to": "2028-12-31",
"from": "2027-06-01"
},
"measurement_criterion": "NRC issues operating license amendment confirming first criticality; Kairos Power and DOE press release"
},
{
"kind": "llm_pre_event",
"label": "First commercial KP-FHR reactor begins construction at TVA / utility-host site",
"source": "https://www.kairospower.com/locations/tennessee",
"status": "pending",
"weight": 0.4,
"ordinal": -4,
"source_id": null,
"confidence": 0.5,
"expected_date": "2028-06-15",
"research_origin": "training",
"expected_date_range": {
"to": "2029-06-30",
"from": "2027-06-01"
},
"measurement_criterion": "NRC issues construction permit for first commercial 75-MWe KP-FHR module under Alphabet PPA; concrete pour reported"
},
{
"kind": "quartile_checkpoint",
"label": "Q1 window check-in (25%)",
"status": "pending",
"weight": 0.05,
"ordinal": -3,
"source_id": null,
"expected_date": "2030-02-16",
"observed_date": null
},
{
"kind": "quartile_checkpoint",
"label": "Q2 window check-in (50%)",
"status": "pending",
"weight": 0.05,
"ordinal": -2,
"source_id": null,
"expected_date": "2030-04-04",
"observed_date": null
},
{
"kind":
... (truncated)