Water and climate risks to power generation with carbon capture and storage

Byers E, Hall JW, Amezaga JM, O’Donnell GM, & Leathard A (2016). Water and climate risks to power generation with carbon capture and storage. Environmental Research Letters 11 (2): 024011. DOI:10.1088/1748-9326/11/2/024011.

[img]
Preview
Text
Water and climate risks to power generation with carbon capture and storage.pdf - Published Version
Available under License Creative Commons Attribution.

Download (4MB) | Preview

Abstract

Carbon capture and storage (CCS) provides the opportunity to minimize atmospheric carbon emissions from fossil fuel power plants. However, CCS increases cooling water use and few studies have simulated the potential impacts of low flows on CCS power plant reliability. We present a framework to simulate the impacts of natural hydrological variability and climatic changes on water availability for portfolios of CCS capacity and cooling technologies. The methods are applied to the River Trent, the UK's largest inland cooling water source for electricity generation capacity. Under a medium emissions climate change scenario, the projected median reductions in river flow by the 2040s was 43% for Q 99.9 very low flows and 31% in licensable abstractions between Q 99.9 and Q 91. With CCS developments, cooling water abstractions are projected to increase, likely exceeding available water for all users by the 2030s–2040s. Deficits are reduced when wet/dry hybrid tower cooling is used, which may increase reliability at low flows. We also explore alternative water licensing regimes, currently considered by the UK Government. Climate change and growing cooling demands, individually and jointly present risks that will be prominent by the 2030s, if unaddressed. These risks may be managed if water-efficient abstraction is prioritized when supplies are limited.

Item Type: Article
Research Programs: Energy (ENE)
Depositing User: Luke Kirwan
Date Deposited: 29 Jul 2016 12:06
Last Modified: 01 Aug 2016 06:34
URI: http://pure.iiasa.ac.at/13491

Actions (login required)

View Item View Item

International Institute for Applied Systems Analysis (IIASA)
Schlossplatz 1, A-2361 Laxenburg, Austria
Phone: (+43 2236) 807 0 Fax:(+43 2236) 71 313