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Email: sandra.ringelstetter@nera.com
vCard: Download
MS in industrial engineering-operations research, University of Wisconsin
BS in industrial engineering, University of Wisconsin
Sandra Ringelstetter Ennis oversees NERA's global operations, including business development, growth strategies, increasing efficiency across all aspects of operations, and the company's worldwide offices. Based in NERA's Chicago office, Ms. Ringelstetter Ennis is a member of the firm's Management Committee and Board of Directors.
Ms. Ringelstetter Ennis has been involved in the energy industry for over 25 years as a consultant and expert specializing in wholesale electricity markets, asset valuation, and the modeling of electric systems. Her expertise includes market assessment, market price forecasting, power plant valuation, financing support, due diligence and transaction support, emission analyses for New Source Review (NSR) compliance, and methodologies and algorithms for the simulation of electric systems.
Ms. Ringelstetter Ennis provides clients with litigation support and expert testimony for coal-fired generators in Environmental Protection Agency (EPA) and Sierra Club NSR enforcement actions. She has supported several clients through Section 114 requests under the Clean Air Act and performed numerous emission analyses for projects included in Notices of Violation issued by the EPA. She has also assisted clients in developing and implementing a process for ongoing NSR emission analyses and compliance submissions. The foundation of much of Ms. Ringelstetter Ennis' work in the electricity sector is her expertise in the use of market simulation models, coupled with her engineering background and knowledge of power plant operations. She has led large modeling teams in complex consulting and litigation assignments.
In the power generation sector, Ms. Ringelstetter Ennis assists clients in the due diligence, acquisition, and financing of new and existing generating facilities. For both conventional and renewable generation projects, she has prepared independent valuations and market expert reports for internal investment review, offering memorandums, debt financing (including for the Department of Energy Loan Guarantee Program), and capital market bond ratings. She also provides market advisory services to clients regarding the impact of changes in fundamental market assumptions or proposed changes to market rules. Throughout her career, she has appeared as an expert witness regarding market analysis and power plant valuation. She has provided testimony before the US Federal Energy Regulatory Commission, several state commissions, and in arbitration proceedings.
Title | Type | Author | ||
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FERC Order 1000 and Public Policy Transmission Projects | Published Article | Sandra Ringelstetter Ennis et al. | ||
Setting Up a Compliant Process for New Source Review | Published Article | Sandra Ringelstetter Ennis | ||
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Title | Date | |||
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Natural Gas Power Plan Development: For New and Converted Generation Facilities | 28 July 2015 | |||
EUEC 2012: 15th Annual Energy Utility Environment Conference | 30 January 2012 | |||
EUEC 2011: 14th Annual Energy & Environment Conference | 31 January 2011 | |||
Solar and Wind Energy Development in Arizona | 07 October 2010 | |||
EnergyOcean Pacific 2010 and Ocean Renewable Energy 5th Conference | 29 September 2010 | |||
Implementing Fuel Flexibility Strategies | 20 July 2010 | |||
Tribal Energy in California | 22 June 2009 | |||
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Title | Date | Type | ||
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NERA Economic Consulting Appoints Sandra Ringelstetter Ennis as Chief Operating Offic... | 03 August 2015 | Press Release | ||
NERA Economic Consulting Promotes Nine Global Experts | 03 February 2015 | Press Release | ||
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