Reliability Price Adder NPRR883 Details
Explore the adjustments made in NPRR883 for settlement equations in ancillary services assignment, avoiding double payments by adding the Reliability Price Adder. Understand the implications of the Reliability Price Adder being paid twice and the payment differences post-NPRR883, including partial deployment details and total payment breakdown.
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Presentation Transcript
NPRR883 Example for WMS Austin Rosel ERCOT August 8, 2018
NPRR883 NPRR689 Settlement of Ancillary Service Assignment in Real- Time Operations Posted 3/26/2015; Effective 2/10/2016 Doesn t consider the Reliability Price adder introduced in NPRR626 NPRR626 Reliability Deployment Price Adder Posted 5/16/2014; Effective 6/25/2016 NPRR883 Adjustment to Settlement Equation for Ancillary Services Assignment Posted 6/28/2018 Adds Reliability Price Adder to equations introduced in NPRR689 to avoid double payment 2 PUBLIC
Reliability Price Adder is Paid Twice Paid Adder HSL HSL = RTMG Paid Generation * Real-Time Price (including adder) RTMG Paid Generation * Price (including adder) NPRR689 added payment for Real-Time Price times assigned AS amount (which also includes Adder) 3 PUBLIC
Payment Differences AS Partially Deployed (post 883) LMP $6,900 RTRDPA $100 ORDC $0 RTSPP $7,000 Not Assigned NPRR689 NPRR883 Generation RTSPP Payment 1080 $7,000 1070 $7,000 1070 $7,000 1075 $7,000 Energy NP6.6.3.1 ($7,560,000) ($7,490,000) ($7,490,000) ($7,525,000) RTOHSL RTOLCAP RTASRESP RTASOLIMB RTRDP RTRDASIAMT 1080 1080 1080 1080 0 0 0 10 10 5 0 5 0 0 Imbalance NP6.7.5 10 10 $100 $0 $100 $100 $100 ($500) ($1,000) ($1,000) Un-Deployed AS Assignment RTAURUR RTSPP RTRSVPOR RTRDP RTAURRAMT 0 40 40 20 $7,000 $7,000 $7,000 $7,000 AS Assign NP6.7.2 $0 $0 $0 $0 $100 $0 $100 $100 $100 ($70,000) ($69,000) ($34,500) Total Payment Total Payment ($7,560,000) ($7,561,000) ($1,000) ($7,560,000) ($7,560,000) Difference $0 $0 4 PUBLIC
