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| Leuer, Elizabeth R.; Hyde, Jeffrey; Richard, Tom L.. |
| A stochastic capital budget was used to analyze the effect of net metering policies and carbon credits on profitability of anaerobic digesters on dairy farms in Pennsylvania. We analyzed three different farm sizes—500, 1,000, and 2,000 cows—and considered the addition of a solids separator to the project. Results indicate that net metering policies and carbon credits increase the expected net present value (NPV) of digesters. Moreover, the addition of a solids separator further increases the mean NPV of the venture. In general, the technology is profitable only for very large farms (1,000+ cows) that use the separated solids as bedding material. |
| Tipo: Journal Article |
Palavras-chave: Anaerobic digester; Stochastic capital budget model; Dairy farm; Alternative energy; Environmental Economics and Policy; Livestock Production/Industries. |
| Ano: 2008 |
URL: http://purl.umn.edu/45662 |
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| Miller, J. Corey; Coble, Keith H.. |
| As a result of the increase in the real cost of fossil fuel-based energy in recent years, federal and state governments have taken a more active role in energy policy by creating incentives to develop alternative sources of energy, including biofuels. However, policymakers often become focused on the specific type of energy and not the energy services consumers ultimately value. The lack of recognition of energy as a commodity results in policies that ignore the characteristics of the associated markets: easy entry and exit, no barriers to entry, and sensitivity to changes in supply and demand. Consequently, energy industries may fail to arise because entrepreneurs must be able to account for all costs and earn—at a minimum—a competitive return on the... |
| Tipo: Journal Article |
Palavras-chave: Alternative energy; Biofuels; Energy policy; Resource /Energy Economics and Policy; Q41; Q42; Q48. |
| Ano: 2011 |
URL: http://purl.umn.edu/113534 |
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| Grah,Vanessa de F.; Ponciano,Isaac de M.; Botrel,Tarlei A.. |
| Wind power has gained space in Brazil's energy matrix, being a clean source and inexhaustible. Therefore, it becomes important to characterize the wind potential of a given location, for future applications. The main objective of the present study was to estimate the wind energy potential in Piracicaba, SP, Brazil. The wind speed data were collected by an anemometer installed at the Meteorological Station Luiz de Queiroz College of Agriculture, Piracicaba-SP. The wind speed variability was represented by the Weibull frequency distribution, a probability density function of two parameters (k and c). The parameters k and c were used to correlate the Gamma function with the annual average wind speed, the variance and power mean density. A wind profile was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alternative energy; Power density of wind; Weibull distribution function. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662014000500014 |
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