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| 1 |
ID:
124179
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| Publication |
2013.
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| Summary/Abstract |
Ambitious targets have been set for expanding electricity generation from renewable sources, including wind. Expanding wind power impacts needs for other electricity generating resources. As states plan for increasing levels of wind generation in their portfolio of generation resources it is important to consider how this intermittent resource impacts the need for other generation resources. A case study for Indiana estimates the value of wind capacity and demonstrates how to optimize its level and the levels of other generation resources. Changes are driven by temporal patterns of wind power output and load. System wide impacts are calculated for energy, capacity, and costs under multiple wind expansion scenarios which highlight the geographic characteristics of a systems portfolio of wind generation. The impacts of carbon prices, as proposed in the Bingaman Bill, are considered. Finally, calculations showing the effect increasing levels of wind generation will have on end use Indiana retail rates are included.
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| 2 |
ID:
171481
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| Summary/Abstract |
Distributed energy resources, including photovoltaic solar and energy storage, are seeing increased deployment. The optimal configuration and operation of these resources depend on several external factors, including energy pricing, incentive programs, and the provision of capacity payments. We model, as a mixed-integer optimization problem, the design and operation of a hybrid energy system that consists of photovoltaic solar arrays that are coupled with energy storage using a shared inverter. We apply our optimization model to a case study that considers two locations in California and a variety of pricing and subsidy regimes. We demonstrate that a well designed time-variant retail tariff provides reasonable incentives for building and operating a hybrid energy system. On the other hand, investment tax credits and the provision of capacity payments can be considerably more distortionary. In particular, constraints that govern the investment tax credit in the United States can hamper significantly the deployment of the hybrid energy systems that we examine.
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