Table 8 Electrolyzer plant characteristics

From: Active trading and regulatory incentives lower the levelized cost of green hydrogen in Greece

Characteristic

Units

Description

Symbol

System capacity

MW

Nominal capacity of electrolysis system

P

Footprint

m2

Footprint of the installation

H2_land

Stack efficiency

kWh per kg H2

Energy consumed per stack and kg of hydrogen produced

η

System efficiency

kWh per kg H2

Energy consumed in the whole system per kg of Hydrogen produced

e

Feed Water consumption

l per kg H2

Water consumed per hydrogen produced

we

H2 output per stack

kg per h

Hydrogen produced per hour in full capacity

H2_out

O2 output per stack

kg per h

Oxygen produced per hour in full capacity

O2_out

Cut-off threshold

MWh

Minimum required energy for the electrolyzer to operate

\({{Thr}}_{{cut}}\)

Maximum energy consumption

MWh

Maximum energy that can be consumed on a specific hour at maximum capacity P

\({P}_{{en}}\)