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    ScottMadden Shares Proactive Solutions to Curtailment Risk: Identifying New Contract Structures for Utility-Scale Renewables


    March 14, 2017 - ScottMadden

     

      ScottMadden, Inc., one of North America’s leading energy consulting firms, and the Smart Electric Power Alliance (SEPA) have partnered to develop a set of alternative curtailment approaches for Hawaii to consider and deploy that better manage curtailment risk and should result in more equitable power purchase agreements (PPAs) over the long term. The SEPA-ScottMadden report, “Proactive Solutions to Curtailment Risk: Identifying New Contract Structures for Utility-Scale Renewables,” offers a new approach to PPAs.

      Hawaii faces a unique risk with regards to curtailment of utility-scale wind and solar projects due to the high penetration of distributed solar on their system. Historically, curtailment has been done in “reverse chronological order,” meaning the oldest (and, often, most expensive) projects are the least likely to be curtailed. This structure is not sustainable over the long term, as higher and higher curtailment risk becomes priced into projects and drives up customer cost.

      Chris Vlahoplus, partner and clean tech & sustainability practice leader at ScottMadden, explains how PPAs are ripe for innovation, saying, “Current PPA deal structures encourage renewable generators to deliver available energy, regardless of grid operating conditions. One opportunity is to break the PPA into fixed and variable price components. This would allow a resource like solar to run below its maximum capacity and provide services, such as frequency regulation, to the electric grid.”

      “The Renewable Dispatchable Generation model also improves project economics by allocating the risk of potential revenue loss due to curtailment more equitably between renewable energy developers and utilities," said John Sterling, senior director of research and advisory services at SEPA.

      The opportunity is discussed further in a recent SEPA blog post that outlines how changing solar PPAs could turn curtailed power into dispatchable resources. Here, Mahesh Morjaria, First Solar’s vice president of systems development, shares his view of overproduction and curtailment, saying that he “sees some level of curtailment as implicit in utility-scale solar going forward.” He continues, “If you need this variable generation, it should be used for other services—that’s really the motivation from the financial perspective.”

      About ScottMadden’s Clean Tech & Sustainability Practice

      Leveraging our energy expertise, the ScottMadden Clean Tech & Sustainability practice helps our clients effectively navigate through the quickly changing energy landscape. We specialize in assisting our clients with sustainable energy strategies and making smart portfolio choices. We work with our clients to understand and effectively utilize cleaner, renewable sources of energy, such as nuclear, wind, solar, biomass, and biofuels. Our experienced team of energy practitioners understands the roles of energy efficiency, demand response, and storage as part of an integrated strategy. We also assist clients with sustainability, bringing an understanding of energy-unique concerns.

      About ScottMadden, Inc.

      ScottMadden is the management consulting firm that does what it takes to get it done right. Our practice areas include Energy, Clean Tech & Sustainability, Corporate & Shared Services, and Grid Transformation. We deliver a broad array of consulting services ranging from strategic planning through implementation across many industries, business units, and functions. To learn more, visit www.scottmadden.com | Twitter | Facebook | LinkedIn

      About Smart Electric Power Alliance

      The Smart Electric Power Alliance (SEPA) is an educational non-profit and a trusted platform for education, research and collaboration to help utilities deploy and integrate solar, storage, demand response, and other distributed energy resources. Created in 1992, we currently have over 1,000 members who represent the whole spectrum of industry stakeholders. Utilities, ISOs, large energy users, corporate and non-profits look to us to facilitate solutions for today’s challenges and to meet tomorrow’s electricity needs for the next decade and beyond. For more information, visit www.sepapower.org | TwitterFacebook | LinkedIn

      For more information or to schedule time to chat with Mr. Vlahoplus, please feel free to reach out.

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