Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aabf60 |
Renewable energy alternatives to mega hydropower: a case study of Inga 3 for Southern Africa | |
Deshmukh, R.1; Mileva, A.2; Wu, G. C.1 | |
2018-06-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS
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ISSN | 1748-9326 |
出版年 | 2018 |
卷号 | 13期号:6 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | We assess the feasibility and cost-effectiveness of renewable energy alternatives to Inga 3, a 4.8-GW hydropower project on the Congo River, to serve the energy needs of the host country, the Democratic Republic of Congo (DRC), and the main buyer, South Africa. To account for a key uncertainty in the literature regarding the additional economic impacts of managing variable wind and solar electricity, we built a spatially and temporally detailed power system investment model for South Africa. We find that a mix of wind, solar photovoltaics, and some natural gas is more cost-effective than Inga 3 to meet future demand except in scenarios with pessimistic assumptions about wind technology performance. If a low load growth forecast is used, including Inga 3 in the power mix results in higher system cost across all sensitivities. In our scenarios, the effect of Inga 3 deployment on South African power system cost ranges from an increase of ZAR 4300 (US$ 330) million annually to savings of ZAR 1600 (US$ 120) million annually by 2035. A cost overrun as low as 20% makes the Inga 3 scenarios more expensive in all sensitivity cases. Including time and cost overruns and losses in transmission from DRC to South Africa make Inga 3 an even less attractive investment. For DRC, through analysis of spatial datasets representing technical, physical, and environmental constraints, we find abundant renewable energy potential: 60 GWof solar photovoltaic and 0.6-2.3 GWof wind located close to transmission infrastructure have levelized costs less than US$ 0.07 per kWh, or the anticipated cost of Inga 3 to residential consumers. |
英文关键词 | hydro renewable energy dam Inga Congo South Africa |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000434385200001 |
WOS关键词 | CONSTRUCTION COST OVERRUNS ; ELECTRICITY INFRASTRUCTURE ; GRAND INGA ; SECURITY ; GENERATION ; DAM |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/35422 |
专题 | 气候变化 |
作者单位 | 1.Univ Calif Berkeley, Energy & Resources Grp, 310 Barrows Hall, Berkeley, CA 94702 USA; 2.Blue Marble Analyt, San Francisco, CA USA |
推荐引用方式 GB/T 7714 | Deshmukh, R.,Mileva, A.,Wu, G. C.. Renewable energy alternatives to mega hydropower: a case study of Inga 3 for Southern Africa[J]. ENVIRONMENTAL RESEARCH LETTERS,2018,13(6). |
APA | Deshmukh, R.,Mileva, A.,&Wu, G. C..(2018).Renewable energy alternatives to mega hydropower: a case study of Inga 3 for Southern Africa.ENVIRONMENTAL RESEARCH LETTERS,13(6). |
MLA | Deshmukh, R.,et al."Renewable energy alternatives to mega hydropower: a case study of Inga 3 for Southern Africa".ENVIRONMENTAL RESEARCH LETTERS 13.6(2018). |
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