气候变化领域集成服务门户(CCPortal): Risks and opportunities for a Swiss hydroelectricity company in a changing climate

CCPortal

DOI	10.5194/hess-24-3815-2020
	Risks and opportunities for a Swiss hydroelectricity company in a changing climate
	Hakala K.; Addor N.; Gobbe T.; Ruffieux J.; Seibert J.
发表日期	2020
ISSN	1027-5606
起始页码	3815
结束页码	3833
卷号	24 期号:7
英文摘要	Anticipating and adapting to climate change impacts on water resources requires a detailed understanding of future hydroclimatic changes and of stakeholders' vulnerability to these changes. However, impact studies are often conducted at a spatial scale that is too coarse to capture the specificity of individual catchments, and, importantly, the changes they focus on are not necessarily the changes most critical to stakeholders. While recent studies have combined hydrological and electricity market modeling, they tend to aggregate all climate impacts by focusing solely on reservoir profitability. Here, we collaborated with Groupe E, a hydroelectricity company operating several reservoirs in the Swiss pre-Alps, and we co-produced hydroclimatic projections tailored to support the upcoming negotiations of their water concession renewal. We started by identifying the vulnerabilities of their activities to climate change; together, we then selected streamflow and electricity demand indices to characterize the associated risks and opportunities. We provided Groupe E with figures showing the projected impacts, which were refined over several meetings. The selected indices enabled us to assess a variety of impacts induced by changes in (i) the seasonal water volume distribution, (ii) low flows, (iii) high flows, and (iv) electricity demand. This enabled us to identify key opportunities (e.g., the future increase in reservoir inflow in winter, when electricity prices have historically been high) and risks (e.g., the expected increase in consecutive days of low flows in summer and fall which is likely to make it more difficult to meet residual flow requirements). We highlight that the hydrological opportunities and risks associated with reservoir management in a changing climate depend on a range of factors beyond those covered by traditional impact studies. This stakeholder-centered approach, which relies on identifying stakeholder's needs and using them to inform the production and visualization of impact projections, is transferable to other climate impact studies, in the field of water resources and beyond. © Author(s) 2020. This work is distributed under the Creative Commons Attribution 4.0 License.
语种	英语
scopus关键词	Aggregates; Catchments; Electric power utilization; Hydroelectric power; Hydroelectric power plants; Reservoir management; Reservoirs (water); Risk management; Water resources; Changing climate; Climate change impact; Climate impacts; Electricity demands; Electricity market model; Electricity prices; Reservoir inflow; Water concessions; Climate change; catchment; climate change; hydroelectric power; nature-society relations; risk assessment; spatial analysis; stakeholder; water resource; Switzerland
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159337
作者单位	Hakala, K., Department of Geography, University of Zürich, Zürich, 8057, Switzerland, Department of Infrastructure Engineering, University of MelbourneVIC 3010, Australia; Addor, N., Climatic Research Unit, School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ, United Kingdom, College of Life and Environmental Sciences, University of Exeter, Exeter, EX4 4RJ, United Kingdom; Gobbe, T., Energy Board Groupe e Sa, Granges-Paccot, 1763, Switzerland; Ruffieux, J., Energy Board Groupe e Sa, Granges-Paccot, 1763, Switzerland; Seibert, J., Department of Geography, University of Zürich, Zürich, 8057, Switzerland, Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, 750 07, Sweden
推荐引用方式 GB/T 7714	Hakala K.,Addor N.,Gobbe T.,et al. Risks and opportunities for a Swiss hydroelectricity company in a changing climate[J],2020,24(7).
APA	Hakala K.,Addor N.,Gobbe T.,Ruffieux J.,&Seibert J..(2020).Risks and opportunities for a Swiss hydroelectricity company in a changing climate.Hydrology and Earth System Sciences,24(7).
MLA	Hakala K.,et al."Risks and opportunities for a Swiss hydroelectricity company in a changing climate".Hydrology and Earth System Sciences 24.7(2020).