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Simultaneous RTDR and RTEG Audits

Simultaneous RTDR and RTEG Audits. DRWG. April 4, 2012. Agenda. Background Implications Recommendations. Background. Included in the auditing rules that passed at the March PC was the following provision: III.13.6.1.5.4.1. General Auditing Requirements for Demand Resources.

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Simultaneous RTDR and RTEG Audits

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  1. Simultaneous RTDR and RTEG Audits DRWG April 4, 2012

  2. Agenda Background Implications Recommendations

  3. Background Included in the auditing rules that passed at the March PC was the following provision: III.13.6.1.5.4.1. General Auditing Requirements for Demand Resources.  (c) An audit of a Real-Time Emergency Generation Resource must be performed simultaneously with the audit of any Real-Time Demand Response Resources containing Real-Time Demand Response Assets that are located behind the same retail delivery point as the Real-Time Emergency Generation Assets mapped to the Real-Time Emergency Generation Resource. 

  4. Background The problem ISO was trying to solve was the following potential example: A facility that cannot pushback has a peak load of 1 MW and has both RTEG and RTDR assets.  The RTEG picks up the entire facility, and the RTDR is a 0.1 MW load reduction.  If audited separately, the RTEG would perform at 1 MW, and the RTDR would perform at 0.1 MW.  So a 1 MW facility would provide 1.1 MW of audited capacity, which is not representative of what it can actually provide, given its peak load of 1 MW.  If audited simultaneously, the RTEG would get 900 KW and the RTDR would get 100 KW, for a total of 1 MW, the correct result.”

  5. Implications If there are “combo” sites with both RTDR and RTEG assets, there will be no such thing as qualifying dispatches (events that last two hours at 100% eliminating the need for a seasonal audit) for RTDR resources that have “combo” sites. This will anger customers If an RTDR resource gets dispatched for two hours at 100%, but just one of the assets is a “combo” site, it means that the entire RTDR resource will have to complete a seasonal audit when the RTEG resource is audited Commercial audits are also impacted. If you have an RTEG (or RTDR) resource that is non-commercial that you wish to further commercialize, it means you automatically have to audit the whole RTDR resource that is associated with any “combo” site. And then you would have to audit the RTEG resource that is associated with any of the combo sites in that RTDR resource

  6. Implications (cont’d)

  7. Recommendations 1. Perform facility level audits. • If a resource owner wants to audit RTDR Resource A, they don’t have to audit the whole RTEG Resource that is associated with any Resource A “combo” sites. They would only have to audit RTEG assets that are “combo” sites 2. Before the next DRWG, EnerNOC will work with ISO and other stakeholders to further vet potential recommendations

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