Electric Power Expo 2015
Session 1E: Asset Optimization
Wednesday, April 22 1:45 PM - 3:45 PM
Integ will be presenting: Understanding the True Cost of a Unit’s Unavailability and the True Value of its Commercial Availability
Authors: Wing Cheng & John Basiak
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It is now recognized by many experts that the traditional NERC GADS generator reliability rates and factors do not adequately reflect the complexity of today’s market condition. EAF, EUOR, EFORd and such do not accurately measure the localized demand variability embedded in the Locational Marginal Pricing of energy. Key questions about the profitability of being available and the economic losses of being unavailable are not answered. Commercial Availability (CA) is emerging to be a better indicator of Generator Reliability and Performance when economic impact is attached to them. This presentation will outline the relationship between the actual margin and lost margins when a generator experiences an outage or derate. By evaluating the heat curves, the incremental cost curves, the startup costs, and unit operating constraints against the hourly LMP or system Lambda tied to each specific unit, energy producers will be able to better determine the true economic impact of each unit outage or derate. With the advent of computing power and the availability of robust market data published by each ISO, detail hourly analysis can now be performed to bestow us insight into the complex relationship between economic dispatch target, actual generation, available capacity, energy and ancillary services revenues, generation costs, startup costs and no-load cost. Ultimately the CA percentage tells us how much total profit we would have made and how much lost opportunity dollars we left on the table due to inopportune outages and derates.
With this new insight, incentives become clearer when considering maintenance outages during lower priced periods in order to capture the maximum potential margin when the unit is dispatched during peak demand periods. Utilities should have the capability to determine how much margin the unit could have made by simulating a generation pattern if the event was avoided. The analysis of key drivers affecting plant profitability will aid in focusing efforts on having generators available to generate when profit potential is high.
We Energies based in Milwaukee, Wisconsin serves more than 1.1 million electric customers in Wisconsin and Michigan's Upper Peninsula and more than 1 million natural gas customers in Wisconsin. The majority of We Energies' electricity is generated by its coal-fueled power plants power plants in Oak Creek, Pleasant Prairie and Sheboygan, Wisconsin, and Marquette, Michigan; from the natural-gas-fueled Port Washington Generating Station in Port Washington, Wisconsin, and from the Point Beach Nuclear Generating Station north of Manitowoc, Wisconsin (now owned and operated by NextEra Energy Resources). We Energies also operates natural-gas-fueled peaking plants, which are used to produce electricity during periods of peak demand, several hydroelectric dams located on rivers in northeast Wisconsin, and from various renewable energy sources, including wind and biomass. We Energies reports to MISO.
Integ Enterprise Consulting, Inc. (Integ) specializes in web-enabled products and solutions, custom software development, system integration, and application support. Integ has been providing integrated software systems and consulting services for the energy sector since 1987 and has established itself as a leading supplier of web-enabled enterprise solutions for energy bidding, dispatch, scheduling and settlement as well as NERC reporting for all market participants.