UNIGE document Scientific Article
previous document  unige:127451  next document
add to browser collection
Title

An assessment of the impacts of renewable and conventional electricity supply on the cost and value of power-to-gas

Authors
Hassan, Aymane
Published in International Journal of Hydrogen Energy. 2019, vol. 44, no. 19, p. 9577-9593
Abstract Power-to-gas (P2G) is a promising enabling technology for more cross-sector integration but its high cost has so far been a key barrier to implementation. Electricity supply is the greatest contributor to the levelised cost therefore it is important to understand which technologies and strategies can minimise the cost and accelerate the deployment. In this study, a method is devised to evaluate the cost and value of combined systems comprising P2G and renewable energy technologies such as solar photovoltaics, wind and hydro as well as comparing to traditional electricity supply via the wholesale market. The proposed models are based on a temporal resolution of 1 h and include partial operation and ageing throughout the system's lifespan. Our analysis covers both distributed and centralised P2G systems producing hydrogen or methane as well as various value-adding services across different geographies. It is found that the capacity factor of a P2G system drives the economic case and therefore the electricity supply from hydropower plants is economically more attractive than electricity from wind and solar photovoltaic plants in this order. Under today's market conditions, it is highly advisable to combine local renewable supply with wholesale-based supply but interestingly, a 20% capital cost reduction in wind technology or a P2G system efficiency of 80% are break-even points for P2G systems producing hydrogen and connected to wind plants.
Keywords Renewable energyHydrogenPower-to-gasElectrolyserEnergy storageMethanation
Identifiers
Full text
Structures
Research group Energy efficiency
Citation
(ISO format)
HASSAN, Aymane, PATEL, Martin, PARRA MENDOZA, David. An assessment of the impacts of renewable and conventional electricity supply on the cost and value of power-to-gas. In: International Journal of Hydrogen Energy, 2019, vol. 44, n° 19, p. 9577-9593. doi: 10.1016/j.ijhydene.2018.10.026 https://archive-ouverte.unige.ch/unige:127451

210 hits

2 downloads

Update

Deposited on : 2019-12-04

Export document
Format :
Citation style :