Claim

In a Europe-wide model conditional on green-hydrogen diffusion resembling natural-gas power-plant diffusion, targeting the most central offtakers reduced median policy cost per additional kilogram by 37–41%, while adding a 10% centrality criterion to a hydrogen-bank-style auction improved cost-effectiveness by 13–15%.

Type QUANTITATIVE · truth-evaluable: yes · status at snapshot: ACTIVE · created seq 16154

40 words; atomic claims are usually under 25a comma-separated series may list several propositions

Referenced 106 times: checked 2, looked up by assistants 0, viewed 69, shared 35. A count of attention, not evidence.

Topics

Energy · 1efd24fe Business · 1efd24fe

Assessment

Supported

Score: 0.9908 under ledger-default@0.3.0 at snapshot 27745

3 of 4 review checks done · 1 counted · 2 by the author only

3 independent evidence lineages · review checks 1 of 4 · stability HIGH

Main unresolved issue: 4 counted evidence items have no independence review; repeats of one origin may be counted as several coverage:456c3266-d737-8525-a1a2-5fb577d3e0e4

Not yet independently audited.Evidence reviewed so far supports this claim, but only 1 of 4 review checks has been done.Every quoted passage was confirmed on the page when Galedra fetched it.

Why?

Strongest counted support: A university-hosted abstract reports the same conditional diffusion model and 41% and 15% policy cost-effectiveness improvements for central-offtaker targeting. weight 1.800000 evidence

Suppressed as dependent: The model reports up to 41% cost-effectiveness improvement in a controlled setting and 15% under a European Hydrogen Bank-style auction.

Review gaps: qualifiers reviewed, opposing search done, independence reviewed

What would most change this: One independent, direct measurement that contradicts this claim would move it from Supported to Supported.

Hide calculation

0.9908 under ledger-default@0.3.0 at snapshot 27745 · state Supported · Review checks: 1 of 4 · stability HIGH · 4 sources, 3 independent lineages

Model ledger-default@0.3.0 (the default model, not the answer) · snapshot 27745 · trace sha256:56a45b0a1e0f01c2f5f159136831d24d33bdc803600716cd2613586ba28cff33

Last changed at entry seq 16336; nothing logged since has borne on this claim.

How the number was reached

Each counted link is weighed by multiplying the factors the model declares; a factor it does not declare is not shown. Every factor name below links to what that number means.

Link	Working	Weight	Counted as
5eabf3e6 support	relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.800000	1.800000
42c6cd4d support	relevance DIRECT 2.0 × observation MODEL_OUTPUT 0.0 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	0.000000	0.000000 (dependent strongest only, kept 81f0d1fc)
7f3f52ef support	relevance STRONG 1.2 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.080000	1.080000
81f0d1fc support	relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.800000	1.800000

prior 0.50 → log-odds 0.000000 + 4.680000 (the counted weights) = 4.680000 → probability 0.9908

Under neighbouring settings of the same model: 0.9636 to 0.9977, a spread of 0.0341.

Half-even rounding, six places for weights and four for the probability. The same inputs under the same model reproduce this exactly; that is what the trace hash above is for. How a score is worked out explains every factor, why it is there, and what the model sets it to.

Your view

Registered views

Nobody has registered a view yet.

Registered views are personal belief, not evidence: they never change Galedra's assessment. Affiliations are self-declared and shown only for groups of 5 or more.

Checked as part of

Statements this claim was broken out of. The claim is scored on its own; a statement's reading only counts its claims.

“In a Europe-wide model conditional on green-hydrogen diffusion resembling natural-gas power-plant diffusion, targeting the most central offtakers reduced...” · 1 claim · 29 September 2026
“In a Europe-wide model conditional on green-hydrogen diffusion resembling natural-gas power-plant diffusion, targeting the most central offtakers reduced...” · 1 claim · 29 September 2026

Evidence for

The model reports up to 41% cost-effectiveness improvement in a controlled setting and 15% under a European Hydrogen Bank-style auction.

From Spatially informed demand-side policies for green hydrogen diffusion in Europe Read 2026-09-29 Relevance DIRECT Steps 0 Counted
The quoted passage directly reports up to 41% and 15% policy cost-effectiveness improvements under the two specified settings.

From Spatially informed demand-side policies for green hydrogen diffusion in Europe Read 2026-09-29 Relevance DIRECT Steps 0 Counted
Independent reporting repeats the 13–15% auction-style and up-to-41% idealised modeled improvements while noting the idealised scenario removed real-world constraints.

From Targeting hydrogen demand could cut EU support costs by up to 15%, study finds Read 2026-09-29 Relevance STRONG Steps 0 Counted

Secondary report of the same Nature Energy study; it corroborates the figures but is not an independent underlying dataset.
A university-hosted abstract reports the same conditional diffusion model and 41% and 15% policy cost-effectiveness improvements for central-offtaker targeting.

From Spatially Informed Demand-Side Policies for Green Hydrogen Diffusion in Europe Read 2026-09-29 Relevance DIRECT Steps 0 Counted

Evidence against

None.

Qualifications

None.

Suppressed as dependent

Evidence	Group	Kept instead
0805ed7c		81f0d1fc

Inferences

Concluded from

None.

Used as a premise in

None.

An inference is interpretation, not evidence: it never changes the assessment of its conclusion. Each premise is a claim with its own evidence.

Threads

None. Threads are for disagreements about how a determination was made — a statement whose figures are not in the passage it rests on, two sources that may share an origin. Something about the world belongs in the evidence above.

Claim edges

None. Edges are stored and displayed; v0.1 does not propagate probability across them.

Review checklist

Review checks: 1 of 4

3 checks by this claim's own author, alongside the independent review above. 1 OPPOSING EVIDENCE SEARCH · 1 QUALIFIER CHECK · 1 EVIDENCE VERIFICATION. A check by the person who recorded a claim does not raise its review coverage.

Check	Done	By
qualifiers reviewed	no
opposing search done	no
independence reviewed	no
primary source reviewed	yes	42c6cd4d, 81f0d1fc

Summary

Supported. The main support is: A university-hosted abstract reports the same conditional diffusion model and 41% and 15% policy cost-effectiveness improvements for central-offtaker targeting. 9c09981e

1 further item repeats the same origin and is not independent evidence. 0805ed7c

A search for evidence in the opposing direction found something; see the counted evidence. cfc0c26e

Review checks: 1 of 4. coverage:456c3266-d737-8525-a1a2-5fb577d3e0e4

Generated by stub-v0.1; every sentence cites graph ids.

Contribution history

seq	event	detail
16154	APPENDED
16155	ACCEPT	AUTOMATIC_AFTER_VALIDATION
16160	LINK_EVIDENCE	by 1efd24fe (accepted)
16214	TASK_RESULT	by 1efd24fe (accepted)
16232	LINK_EVIDENCE	by 1efd24fe (accepted)
16335	TASK_RESULT	by 1efd24fe (accepted)

Score trace

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  "contested": false,
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