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Current and Projected Costs of CSP The Central Solar Option Renewable Energy Applications and Opportunities November

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Current and Projected Costs of CSP The Central Solar Option Renewable Energy Applications and Opportunities November

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    1. Current and Projected Costs of CSP The Central Solar Option Renewable Energy Applications and Opportunities November 19, 2006 Mark S. Mehos/ Hank Price National Renewable Energy Laboratory

    2. CSP Reference Plant Parabolic Trough Technology as Proxy for CSP Current solar technology Rankine cycle plants 6-hours of thermal energy storage Finance Assumptions Analysis based on IPP financing

    3. Current and Projected Costs of CSP

    4. Relative Cost of Electricity Plant Size

    5. Relative Cost of Electricity Incentives (IPP Financing)

    6. Effect of Deployment Based on Experience from Existing Plants (354 MW in CA)

    7. Relative Cost of Electricity Advanced Parabolic Trough Technology

    8. Summary Data collected from existing parabolic trough plants provide a verifiable baseline for projecting the performance of current systems Analysis performed by NREL for DOE and the WGA projects a nominal levelized cost of electricity of $.16/kwh for a reference 100MW parabolic trough plant with 6 hours of thermal storage using current technology The current cost of electricity can vary from $.12 to $.16/kwh depending on the size of solar plant, the solar resource, and mix of incentives Additional cost reductions will be realized based on further deployment in Arizona and other southwest states

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