Yosemite Tuolumne Hydrogen Production Thermochemical Project
Overview
StatusConceptInternational Energy Agency · as of 2026
Country · regionUnited States · Tuolumne County, CaliforniaCalifornia Department of Conservation · as of 2023
TechnologyBiomassInternational Energy Agency · as of 2026biomass gasification; Repotec dual-bed gasifiermyMotherLode.com · as of 2026
ProductH2International Energy Agency · as of 2026H2 / hydrogenYosemite Clean Energy presentation at Western Forest Economists · as of 2023
Capacity50 MW (planned plant rating)California Department of Conservation · as of 2023
Capacity values retain their recorded units and scope. MW, kt H₂/y and Nm³ H₂/h are different measures; this page does not convert or add them without a shared operating basis.
Details
Technology & product
Carbon Reductioncarbon-negative hydrogen / carbon-negative fuelCalifornia Department of Conservation · as of 2023
Componentsbiomass gasifier, syngas processing, hydrogen separationYosemite Clean Energy presentation at Western Forest Economists · as of 2023
Configuration DetailBiomass gasificationInternational Energy Agency · as of 2026
Feedstockforest waste / woody biomassmyMotherLode.com · as of 2026
Project Typebiomass-to-hydrogenCalifornia Department of Conservation · as of 2023
Capacity & economics
Financinggrant support reported: $500,000 preliminary-engineering grant; $416,000 catalyst grantCalifornia Department of Conservation / Yosemite Clean Energy · as of 2023
Production Volume7,000 tons H2/year (planned)Yosemite Clean Energy presentation at Western Forest Economists · as of 2023
Total Capex250 million USD (planned)Yosemite Clean Energy presentation at Western Forest Economists · as of 2023
Status & timeline
Phase Sequencepreliminary engineering (2023-01-24), planned development / Sierra Plant named (2023-04-18), planning and inventory-model grant activity (2026-03-31)California Department of Conservation / Yosemite Clean Energy · as of 2023
Eventgrant announced for preliminary engineering : 2023-01-24; Sierra Plant named in California programme announcement : 2023-04-18; $416,000 catalyst grant reported : 2026-03-31California Department of Conservation / Yosemite Clean Energy · as of 2023
Location & names
Site NameChinese CampCalifornia Department of Conservation · as of 2023
AliasTuolumne Project #2, Sierra PlantCalifornia Department of Conservation · as of 2023
Additional project information
Administrative AreaChinese CampInternational Energy Agency · as of 2026
CountryUnited StatesInternational Energy Agency · as of 2026
Timeline
No recorded project events.
Sources & record history
Sources
- IEA Hydrogen Projects dataset Shared by 7 fields: Snapshot 2026-06-18 · Confidence: reported · Older value (2026)
- California Department of Conservation State Invests $3 Million to Convert Forest Waste into Carbon-Negative Fuel Development · 2023-04-18 Shared by 4 fields: Source dated 2023-04-18 · Older value (2023)
- Yosemite Clean Energy presentation at Western Forest Economists Yosemite Clean Energy Biomass-to-Hydrogen · 2023-09-29 Shared by 2 fields: Source dated 2023-09-29 · Older value (2023)
- Yosemite Clean Energy, LLC Chicken Ranch Rancheria Tribe and Yosemite Clean Energy Collaborate to Foster Renewable Energy in Tuolumne County · 2023-11-29
- myMotherLode.com Yosemite Clean Energy Secures $416,000 Catalyst Grant · 2026-03-31
- California Department of Conservation / Yosemite Clean Energy Yosemite Clean Energy to Receive $1 Million from State of California for Forest Biomass to Hydrogen Projects · 2023-01-24
Field sources
Shared date, confidence and value status appear once with their source above; a dash in the table refers to that source context.
| Field | Shown value | Original value | Source | Date basis | Meaning |
|---|---|---|---|---|---|
| Name | Yosemite Tuolumne Hydrogen Production Thermochemical Project | View exact valueYosemite Tuolumne Hydrogen Production Thermochemical Project | IEA Hydrogen Projects dataset | — | — |
| Site Name | Chinese Camp | View exact valueChinese Camp | State Invests $3 Million to Convert Forest Waste into Carbon-Negative Fuel Development | — | — |
| Administrative Area | Tuolumne County, California | View exact valueTuolumne County, California | State Invests $3 Million to Convert Forest Waste into Carbon-Negative Fuel Development | — | — |
| Alias | Tuolumne Project #2, Sierra Plant | View exact value["Tuolumne Project #2","Sierra Plant"] | State Invests $3 Million to Convert Forest Waste into Carbon-Negative Fuel Development; Yosemite Clean Energy Biomass-to-Hydrogen | Source dated 2023-04-18 | Older value (2023) |
| Country | United States | View exact valueUnited States | Chicken Ranch Rancheria Tribe and Yosemite Clean Energy Collaborate to Foster Renewable Energy in Tuolumne County | Source dated 2023-11-29 | Current |
| Carbon Reduction | carbon-negative hydrogen / carbon-negative fuel | View exact valuecarbon-negative hydrogen / carbon-negative fuel | State Invests $3 Million to Convert Forest Waste into Carbon-Negative Fuel Development; Yosemite Clean Energy Secures $416,000 Catalyst Grant | Source dated 2023-04-18 | Older value (2023) |
| Components | biomass gasifier, syngas processing, hydrogen separation | View exact value["biomass gasifier","syngas processing","hydrogen separation"] | Yosemite Clean Energy Biomass-to-Hydrogen; Yosemite Clean Energy Biomass-to-Hydrogen; Yosemite Clean Energy Biomass-to-Hydrogen | Source dated 2023-09-29 | Older value (2023) |
| Configuration Detail | Biomass gasification | View exact valueBiomass gasification | IEA Hydrogen Projects dataset | — | — |
| Feedstock | forest waste / woody biomass | View exact valueforest waste / woody biomass | Yosemite Clean Energy Secures $416,000 Catalyst Grant; State Invests $3 Million to Convert Forest Waste into Carbon-Negative Fuel Development | Source dated 2026-03-31 | Older value (2026) |
| Product | H2 | View exact valueH2 | IEA Hydrogen Projects dataset | — | — |
| Product | H2 / hydrogen | View exact valueH2 / hydrogen | Yosemite Clean Energy Biomass-to-Hydrogen; Yosemite Clean Energy Secures $416,000 Catalyst Grant | Source dated 2023-09-29 | Older value (2023) |
| Project Type | biomass-to-hydrogen | View exact valuebiomass-to-hydrogen | State Invests $3 Million to Convert Forest Waste into Carbon-Negative Fuel Development | — | — |
| Technology | Biomass | View exact valueBiomass | IEA Hydrogen Projects dataset | — | — |
| Technology | biomass gasification; Repotec dual-bed gasifier | View exact valuebiomass gasification; Repotec dual-bed gasifier | Yosemite Clean Energy Secures $416,000 Catalyst Grant; Yosemite Clean Energy Biomass-to-Hydrogen | Source dated 2026-03-31 | Older value (2026) |
| Capacity | 50 MW (planned plant rating) | View exact value{"unit":"MW","basis":"planned plant rating","value":50} | State Invests $3 Million to Convert Forest Waste into Carbon-Negative Fuel Development | — | — |
| Financing | grant support reported: $500,000 preliminary-engineering grant; $416,000 catalyst grant | View exact valuegrant support reported: $500,000 preliminary-engineering grant; $416,000 catalyst grant | Yosemite Clean Energy to Receive $1 Million from State of California for Forest Biomass to Hydrogen Projects; Yosemite Clean Energy Secures $416,000 Catalyst Grant | Source dated 2023-01-24 | Older value (2023) |
| Production Volume | 7,000 tons H2/year (planned) | View exact value{"unit":"tons H2/year","basis":"planned","value":7000} | Yosemite Clean Energy Biomass-to-Hydrogen | — | — |
| Total Capex | 250 million USD (planned) | View exact value{"unit":"million USD","basis":"planned","value":250} | Yosemite Clean Energy Biomass-to-Hydrogen | — | — |
| Event | grant announced for preliminary engineering : 2023-01-24; Sierra Plant named in California programme announcement : 2023-04-18; $416,000 catalyst grant reported : 2026-03-31 | View exact value[{"date":"2023-01-24","event":"grant announced for preliminary engineering"},{"date":"2023-04-18","event":"Sierra Plant named in California programme announcement"},{"date":"2026-03-31","event":"$416,000 catalyst grant reported"}] | Yosemite Clean Energy to Receive $1 Million from State of California for Forest Biomass to Hydrogen Projects; State Invests $3 Million to Convert Forest Waste into Carbon-Negative Fuel Development; Yosemite Clean Energy Secures $416,000 Catalyst Grant | Source dated 2023-01-24 | Older value (2023) |
| Phase Sequence | preliminary engineering (2023-01-24), planned development / Sierra Plant named (2023-04-18), planning and inventory-model grant activity (2026-03-31) | View exact value["preliminary engineering (2023-01-24)","planned development / Sierra Plant named (2023-04-18)","planning and inventory-model grant activity (2026-03-31)"] | Yosemite Clean Energy to Receive $1 Million from State of California for Forest Biomass to Hydrogen Projects; Yosemite Clean Energy Secures $416,000 Catalyst Grant | Source dated 2023-01-24 | Older value (2023) |
| Progress Status | Concept | View exact valueConcept | IEA Hydrogen Projects dataset | — | — |
| Administrative Area | Chinese Camp | View exact valueChinese Camp | IEA Hydrogen Projects dataset | — | — |
| Country | United States | View exact valueUnited States | IEA Hydrogen Projects dataset | — | — |
Record history
1 current sourced value · 19 older values · Record updated