Power to Gas
Power to Gas
Power to Gas
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Costs for <strong>Power</strong>-<strong>to</strong>-<strong>Gas</strong><br />
Elektrolysis, Methanisation and power production<br />
<strong>Power</strong><br />
production<br />
RE-<br />
Surplus<br />
RE-infeed<br />
demand<br />
time<br />
methanation<br />
η ≈ 80 – 85 %<br />
ex. <strong>Gas</strong> power<br />
plant<br />
CO 2<br />
power<br />
grid<br />
RE-Surplus<br />
free of charge<br />
Hydrogen<br />
(H 2 )<br />
SNG<br />
gas grid<br />
power<br />
<strong>Power</strong><br />
grid<br />
electrolyser<br />
spec. invest<br />
1.200 €/kW Einspeiseleistung<br />
assumed efficiency about 65%<br />
− Assumption: Invest 1.200€/kW, Efficiency about 35%<br />
− Result: <strong>Power</strong> Production costs >. 50 ct/kWh*, equivalent <strong>to</strong> 12 times of power<br />
price at s<strong>to</strong>ck(4 ct/kWh)<br />
RWE <strong>Power</strong> AG • Liese SEITE 16<br />
* costs for s<strong>to</strong>rage and infrastructure not considered
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