| 来源类型 | Article |
| 规范类型 | 其他 |
| DOI | 10.1590/sajs.2014/20130282 |
| An evaluation for harnessing low-enthalpy geothermal energy in the Limpopo Province, South Africa. | |
| Dhansay T; de Wit MJ; Patt A | |
| 发表日期 | 2014 |
| 出处 | South African Journal of Science 110 (3) |
| 出版年 | 2014 |
| 语种 | 英语 |
| 摘要 | South Africa generates most of its energy requirements from coal, and is now the leading carbon emitter in Africa, and has one of the highest rates of emissions of all nations in the world. In an attempt to decrease its CO2 emissions, South Africa continues to research and develop alternative forms of energy, expand on the development of nuclear and has began to explore potentially vast shale gas reserves. In this mix, geothermal has not been considered to date as an alternative energy source. This omission appears to stem largely from the popular belief that South Africa is tectonically too stable. In this study, we investigated low-enthalpy geothermal energy from one of a number of anomalously elevated heat flow regions in South Africa. Here, we consider a 75-MW enhanced geothermal systems plant in the Limpopo Province, sustainable over a 30-year period. All parameters were inculcated within a levelised cost of electricity model that calculates the single unit cost of electricity and tests its viability and potential impact toward South Africa's future energy security and CO2 reduction. The cost of electricity produced is estimated at 14 USc/KWh, almost double that of coal-generated energy. However, a USD25/MWh renewable energy tax incentive has the potential of making enhanced geothermal systems comparable with other renewable energy sources. It also has the potential of CO2 mitigation by up to 1.5 gCO2/KWh. Considering the aggressive nature of the global climate change combat and South Africa's need for a larger renewable energy base, low-enthalpy geothermal energy could potentially form another energy option in South Africa's alternative energy basket. |
| 主题 | Risk & ; Resilience (RISK) ; Risk, Policy and Vulnerability (RPV) ; Young Scientists Summer Program (YSSP) |
| 关键词 | Climate change Renewable energy Geothermal energy Enhanced geothermal systems Energy policy |
| URL | http://pure.iiasa.ac.at/id/eprint/10955/ |
| 来源智库 | International Institute for Applied Systems Analysis (Austria) |
| 引用统计 | |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/129880 |
| 推荐引用方式 GB/T 7714 | Dhansay T,de Wit MJ,Patt A. An evaluation for harnessing low-enthalpy geothermal energy in the Limpopo Province, South Africa.. 2014. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
| An%20evaluation%20fo（1439KB） | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 | ||
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