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NOTICE DATE:  February 9, 2017

NOTICE TYPE:  W-A020917-01 Operations

SHORT DESCRIPTION:  Implementation details of NPRR785

INTENDED AUDIENCE: QSEs with Resources

DAY AFFECTED:  March 7 - 9, 2017

LONG DESCRIPTION:  ERCOT will implement changes associated with Nodal Protocol Revision Request (NPRR) 785, Synchronizing WGR and PVGR COPs with Short Term Wind and PhotoVoltaic Forecasts, during March 7 - 9, 2017.

Upon implementation, ERCOT will automatically update the High Sustained Limit (HSL) in the Current Operating Plans (COPs) for Wind-powered Generation Resources (WGRs) with the most recently updated Short-Term Wind Power Forecast (STWPF) and HSL values in COPs for PhotoVoltaic Generation Resources (PVGRs) with the most recently updated Short-Term PhotoVoltaic Power Forecast (STPPF). An Extensible Markup Language (XML) message will be sent every time a WGR's or PVGR's COP HSL value is updated with the forecast value to its corresponding Qualified Scheduling Entity (QSE).

QSEs for WGRs and PVGRs will only be able to submit updates to these COP HSL values with values that are lower than the most recent forecast for the unit provided by ERCOT. For any hour where a QSE update exists, ERCOT's automatic COP HSL update logic will retain the lower of the most recent forecast and the QSE submitted HSL value.

ADDITIONAL INFORMATION:  More information on NPRR785<http://www.ercot.com/mktrules/issues/NPRR785> can be found on the ERCOT website.

CONTACT:  If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via email at [log in to unmask]<mailto:[log in to unmask]>.

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