Abstract
Power-to-gas (PtG) is recognised as potential option to
benefit from periods of low electricity prices. Temporary
low prices will probably be more common in the future due
to increasing share of solar and wind energy in power
systems. When producing methane by electrolysis and
synthesis with CO2, significant amounts of oxygen and
steam are produced as by-products. It is possible to
store oxygen and utilise it in biomass fired or co-fired
combined heat and power (CHP) plants to temporarily
increase production during peak prices. Together with
utilisation of the by-product steam, integration of PtG
with biomass fired CHP plant offers an attractive concept
for future energy system. In this paper, the feasibility
of this concept is analysed in several market scenarios.
As main results, annual operational costs, profits and
payback times are presented. In addition, the impacts on
CO2 emissions are discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 62-69 |
| Journal | Journal of Energy Storage |
| Volume | 5 |
| DOIs | |
| Publication status | Published - 2016 |
| MoE publication type | A1 Journal article-refereed |
Keywords
- CHP
- methanation
- power-to-gas
- process integration
- SNG