Excess electricity and power-to-gas storage potential in the future renewable-based power generation sector in the United Arab Emirates

Valerie Eveloy and Tesfaldet Gebreegziabher

Energy, 2019, vol. 166, issue C, 426-450

Abstract: Future power generation scenarios for the United Arab Emirates (UAE) that emphasize solar photovoltaic (PV) and concentrated solar power (CSP) with thermal energy storage are analyzed at PV:CSP generation ratios of 1:1 to 4:1, and up to 50% renewable share. Such scenarios enable up to 24–38% reduction in primary fuel consumption at 30–50% renewable share, respectively, relative to the base case scenario (i.e., business-as-usual), with accompanying reductions in carbon dioxide emissions of up to 34–54%, respectively. In parallel, over the same range of renewable shares, excess electricity is generated in the range of 1–13 TWh (0.4–5% of annual demand) and 3–25 TWh (1–10%) annually, at PV:CSP ratios of 1:1 and 4:1, respectively. Monthly excess electricity maxima and minima occur in winter and summer, respectively. At 40% renewable electricity share, the PV:CSP 4:1 scenario would lead to annual power generation costs, inclusive of power-to-gas (PtG), approximately 11% higher than for the base case scenario, and 13% lower than for the PV:CSP 1:1 scenario. At an electricity tariff of 0.05 USD/kWh and 50% capacity utilization, the levelized costs of hydrogen and synthetic natural gas (SNG) are estimated at 101 USD/MWhth and 127 USD/MWhth, respectively.

Keywords: Renewable energy; Excess electricity; Power-to-gas; Hydrogen; SNG; UAE (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (12)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:166:y:2019:i:c:p:426-450

DOI: 10.1016/j.energy.2018.10.088

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