ERCOT VOLTAGE PROFILE WORKING GROUP (VPWG)

August 3, 2017 Report to ROS

Recent Meeting

VPWG had a meeting on June 13, 2017.

Kicked off a “Minimum Load” Test Case to improve study methodology on the high voltage end of Voltage Profiles. Changes include lower load levels, higher power factors and more representative dispatch.

ERCOT reviewed progress on NPRR776 implementation items. They said that an impact analysis will be necessary to add voltage POI measurements and set points to ERCOT PI data.

TOs discussed voltage problems seen at new solar plant installations. Much up front contact and communication is needed to establish expectations on normal TO practices in order to avoid plants hitting VAR limits, absorbing VARs or not holding the requested set point voltages.

Future Planned Meeting

Next VPWG will be held next week on August 8, 2017.

Scot Williams	Sharmila Gurrala

VPWG Chair	VPWG Vice-Chair