No. | Parameter | Unit | State of the art | FCH 2 JU target | |||
2012 | 2017 | 2020 | 2024 | 2030 | |||
Generic system* | |||||||
1 | Electricity consumption @nominal capacity | kWh/kg | 57 | 51 | 50 | 49 | 48 |
2 | Capital cost | EUR/(kg/d) (EUR/kW) | 8,000 (~3,000) | 1,600 (750) | 1,250 (600) | 1,000 (480) | 800 (400) |
3 | O&M cost | EUR/(kg/d)/yr | 160 | 32 | 26 | 20 | 16 |
Stack | |||||||
4 | Degradation | %/1000hrs | - | 0.13 | 0.12 | 0.11 | 0.10 |
5 | Current density | A/cm2 | 0.3 | 0.5 | 0.7 | 0.7 | 0.8 |
6 | Use of critical raw materials as catalysts | mg/W | 8.9 | 7.3 | 3.4 | 2.1 | 0.7 |
Notes:
*Standard boundary conditions that apply to all system KPIs: input of 6 kV AC power and tap water; output of hydrogen meeting ISO 14687-2 at a pressure of 30 bar. Correction factors may be applied if actual boundary conditions are different.
2. Capital cost are based on 100 MW production volume for a single company and on a 10-year system lifetime running in steady state operation, whereby end of life is defined as 10% increase in energy required for production of hydrogen. Stack replacements are not included in capital cost. Cost are for installation on a pre-prepared site (fundament/building and necessary connections are available). Transformers and rectifiers are to be included in the capital cost.
3. Operation and maintenance cost averaged over the first 10 years of the system. Potential stack replacements are included in O&M cost. Electricity cost are not included in O&M cost.
4. Stack degradation defined as percentage efficiency loss when run at nominal capacity. For example, 0.125%/1000 h results in 10% increase in energy consumption over a 10 year lifespan with 8000 operating hours per year
5. The critical raw material considered here is Cobalt. Other materials can be used as the anode or cathode catalysts for alkaline electrolysers. 7.3 mg/W derives from a cell potential of 1.7 V and a current density of 0,5 A/cm2, equivalent to 6.2 mg/cm2.