Table 3.
Fossil-based hydrogen production main model input parameters
| Input Parameters | Next Decade Value | Units | Source |
|---|---|---|---|
| CO2 Capture Percent |
0% [SMR] 56% [SMR-CCS (1)] 96% [SMR-CCS (2)] 95% [ATR-CCS (3)] |
% | 22 |
| Electricity Use |
0.65 [SMR] 1.5 [SMR-CCS (1)] 2.04 [SMR-CCS (2)] 4 [ATR-CCS (3)] |
kWhe/kg H2 capacity | 22 |
| Natural Gas Use |
3.53 [SMR] 3.58 [SMR-CCS (1)] 3.75 [SMR-CCS (2)] 3.52 [ATR-CCS (3)] |
kg CH4/kg H2 capacity | 22 |
| Capital Costs |
549 [SMR] 734 [SMR-CCS (1)] 1336 [SMR-CCS (2)] 1056 [ATR-CCS (3)] |
$/kW H2 capacity | 22 |
| WACC (Discount Rate) | 5% | % | 22 |
| Natural Gas Cost |
$6.50 [CA] $5.00 [NY] $4.00 [TX] |
$/MMBTU CH4 | 46 |
| Emissions Removal Cost | 200 | $/metric ton CO2e removed | 19 |
(1) Refers to an SMR with process CO2 capture. (2) Refers to an SMR with process and flue gas CO2 capture. (3) Refers to an ATR with process CO2 capture. We assume all costs are in 2020 dollars. See the SI, Section 4 for all input parameter values. SMR refers to steam methane reforming. CCS refers to carbon capture and storage. ATR refers to auto-thermal reforming. WACC refers to weighted average cost of capital.