Full Title: California-Wyoming Grid Integration Study: Phase 1—Economic Analysis
Author(s): D. Corbus, D. Hurlbut, P. Schwabe, E. Ibanez, M. Milligan, G. Brinkman, A. Paduru, V. Diakov, and M. Hand
Publisher(s): National Renewable Energy Laboratory
Publication Date: 3/2014

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This report examines the economics of new transmission to deliver wind power from Wyoming to electricity customers in California. It looks at possible choices for meeting the last increment of California’s renewables portfolio standard (RPS) requirement—33% of retail sales by 2020— comparing Wyoming wind with in-state renewables likely to be available in 2017.

The results suggest that the economic benefits of developing the corridor exceed the costs under the array of future conditions tested in the analysis. Benefit-to-cost ratios range from 1.62 to 3.62 depending on assumptions about federal tax incentives in 2017, and depending on assumptions about the future costs of different renewable energy technologies.