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Managing Peak Load for ERCOT Member Distribution Cooperatives: Challenges and Solutions

This document outlines the challenges faced by member distribution cooperatives in ERCOT, emphasizing the management of 230 MW of peak load across 104 delivery points with a focus on operational requirements. It details the transmission services provided, telemetry needs, and existing coordination issues, especially concerning load shedding and the registration of transmission operators. Potential solutions such as developing an in-house transmission operation or forming coalitions are discussed, including the cost-benefit analysis and implications for all ERCOT customers.

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Managing Peak Load for ERCOT Member Distribution Cooperatives: Challenges and Solutions

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  1. Golden Spread ERCOT Load • 7 Member Distribution Cooperatives • 230 MW of Peak Load • 104 Delivery Points (46 are at >60 kV) • 108 Miles of Transmission Lines (all radial) • Transmission Service Provided by: • ONCOR • AEP • LCRA • TNP

  2. TRE Registration • DP & LSE for one Member Cooperative • No other registrations are required

  3. ERCOT Transmission Operations Requirements • 24 hour operations desk- WAN • Telemetry requirements for 5 delivery points • Outage Scheduler • BLT Coordination (6 currently being registered) • Synder Wind Farm (63 MW) connected to a 69 kV line • Receive and comply with ERCOT Dispatch Instructions • Potential Load Shed Coordination • Members loads are not listed in the ERCOT Load Shed Table • Currently ONCOR and AEP shed the load as a part of their plan

  4. Transmission Operations Delegation • Current TO’s serving GSEC Loads unwilling to sign and perform TO functions • Take on liability? • Make no earnings or return • Use valuable management time and resources • Potential Solutions • An ERCOT registered TO step up and respond to RFP • A PRR for a “TO Light” • Coalition of DSPs/TSPs develop a TO function • GSEC build an in-house TO

  5. Solution #4 – Cost/Benefit? • Uncertain of the cost, will be high • Take time to build • Back-up center • Very limited interaction with ERCOT Ops • Maybe a few times a year • Does this benefit justify the high cost • Will be rolled into TCOS and cause all ERCOT customers to pay for this cost.

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