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Advanced Clean Energy Storage (ACES)

Construction✓ Source-checked

ACES Delta LLC (Chevron New Energies majority + Mitsubishi Power Americas minority)

Source: IEA Hydrogen Projects Database (September 2025)

Project Overview

Country
United States
Region
Utah (Delta)
Capacity
220 MW
Technology
Alkaline Electrolysis
Investment · scope not declared (EUR)
€650M

The row also records $1.0B, which is not this EUR figure converted at EUR_TO_USD = 1.08, fixed on 1 Jun 2026. The two are separate claims.

Subsidy Status
disbursing

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Development Timeline

AnnouncedMay 2019
FIDJun 2022
ConstructionJun 2022
OperationalJul 2025planned date · already passed

Status History

DateChangeReasonSource
17 May 2026constructionIEA Tier B Batch 1 — IEA Ref 1712—

Readiness Score

80/ 100
Mature

Weighted checklist of public info. Not a prediction of success.

Development

✓Final Investment Decision+15
✓EPC Contract signed+10
✓Permits obtained+8
✓Grid connection secured(implied)+7

Commercial

✓Binding offtake agreement+15
✓MOU / offtake letter of intent(implied)+5
✗Confirmed price / tariff+5
✓Applied to government program+5

Financing

✓Project finance / debt secured+10
✓Subsidy (disbursing)+10

Track Record

✗Developer has completed H2 project+5
✗Developer has completed RE project+3
✗Developer has energy experience+2