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The frequency behavior of North American grids has recently been the subject of considerably heightened concern. Reports by the North American Reliability Corporation show that “frequency response”, that is, the severity and recovery of grid frequency following large disturbances (typically trip of large thermal generation plants) has been declining over the past two decades. The addition of substantial...
Challenges facing the California ISO as it transitions from a zonal to an LMP-based market that it founded on a Full Network Model for congestion management include both obtaining the most accurate modeling of the western regional energy market and integrating new supply resources, particularly renewable energy. Through simulations of its new market, the California ISO has uncovered needs for modeling...
This paper describes the challenges faced by the California ISO in testing the integration of the new California real-time nodal market with the energy management system. The paper addresses how an operator training simulator was used for testing the real time market and some critical functions of EMS. CAISO's EMS dispatcher training simulator was modified and coupled with CAISO's market applications...
Summary form only given. The CAISO is completing the implementation of it market redesign and technology upgrade (MRTU). Currently, the ancillary services at the CAISO is approximately a $300 million annual market. In conjunction with the market redesign, the CAISO is implementing a co-optimization of energy subject to transmission constraints and ancillary services subject to resource constraints...
Since 1998, the CAISO has procured ancillary services in the day-ahead and hour-ahead market in a sequential manner after the congestion management is completed. As the CAISO is implementing its market redesign technology upgrade (MRTU), the CAISO will be co-optimizing the procurement of ancillary services and energy.
The purpose of this paper is to discuss some of the operational concerns as the amount of wind generation in our area increases over the next 5 years. The addition of 4500 more megawatts of wind generation in California will have an impact on both the transmission system and real-time operation of the California power grid. This paper focuses on the operational issues due to the intermittent nature...
This paper presents a new formulation to model a real-time energy balancing market with the local/system reliability requirements. The proposed methodology enables an independent system operator (ISO) to perform real-time balancing by issuing both market instructions and out-of-market instructions to ensure the system reliability in an integrated optimization based framework. The discussion in this...
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