Journal
ENVIRONMENTAL SCIENCE & TECHNOLOGY
Volume 44, Issue 13, Pages 4849-4855Publisher
AMER CHEMICAL SOC
DOI: 10.1021/es903434q
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Funding
- Austrian National Bank [12449, 13380]
- Climate Decision Making Center created through a cooperative agreement between the National Science Foundation and Carnegie Mellon University [SES-0345798]
- Divn Of Social and Economic Sciences
- Direct For Social, Behav & Economic Scie [949710] Funding Source: National Science Foundation
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Several forms of renewable energy compete for supremacy or for an appropriate role in global energy supply. A form of renewable energy can only play an important role in global energy supply if it fulfills several basic requirements. Its capacity must allow supplying a considerable fraction of present and future energy demand, all materials for its production must be readily available, land demand must not be prohibitive, and prices must reach grid parity in the nearer future. Moreover, a renewable energy technology can only be acceptable if it is politically safe. We supply a collection of indicators which allow assessing competing forms of renewable energy and elucidate why surprise is still a major factor in this field, calling for adaptive management. Photovoltaics (PV) are used as an example of a renewable energy source that looks highly promising, possibly supplemented by solar thermal electricity production (ST). We also show why energy use will contribute to land use problems and discuss ways in which the right choice of renewables may be indispensible in solving these problems.
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