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European Partnership

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Clean Hydrogen Partnership

Hydrogen production from renewable electricity for energy storage and grid balancing using PEM electrolysers

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

60

58

55

52

50

2

Capital cost

EUR /(kg/d)

8,000

2,900

2,000

1,500

1,000

(EURkW)

(~3,000)

(1,200)

(900)

(700)

(500)

3

O&M cost

EUR/(kg/d)/yr

160

58

41

30

21

Specific system

4

Hot idle ramp time

sec

60

10

2

1

1

5

Cold start ramp time

sec

300

120

30

10

10

6

Footprint

m2/MW

-

120

100

80

45

Stack

7

Degradation

%/1000hrs

0.375

0.250

0.190

0.125

0.12

8

Current density PEM

A/cm2

1.7

2.0

2.2

2.4

2.5

9

Use of critical raw materials as catalysts PGM

mg/W

-

5.0

2.7

1.25

0.4

10

Use of critical raw materials as catalysts Pt

mg/W

-

1.0

0.7

0.4

0.1

Notes:

Availability is fixed at 98% (value from the electrolysis study).

1 to 3 and 7 similar conditions as for alkaline technology (previous table)

2. The time from hot idle to nominal power production, whereby hot idle means readiness of the system for immediate ramp-up. Power consumption at hot idle as percentage of nominal power, measured at 15°C outside temperature.

3. The time from cold start from -20°C to nominal power

9. This is mainly including ruthenium and iridium as the anode catalyst and platinum as the cathode catalyst (2.0 mg/cm2 at the anode and 0,5 mg/cm2 at the cathode). The reduction of critical raw materials content is reported feasible reducing the catalysts at a nano-scale.