By William Opalka

The Federal Energy Regulatory Commission says a filing made by NYISO to calculate payments for voltage support services (VSS) is deficient (ER15-1042).

The commission Friday requested more information before it can consider amendments to NYISO’s Market Administration and Control Area Services Tariff.

NYISO proposed paying VSS providers $2,592/MVAr for both leading and lagging capability, with annual increases based on the consumer price index (CPI). MVAr is the unit of measurement for reactive power capability. (See NYISO Rejects Protests on Voltage Compensation.)

FERC asked NYISO for more explanation of the methodology and assumptions used to determine the proposed rate. It also ordered the ISO to provide documentation demonstrating that the proposed amendments maintain the approximate total dollar value of the current VSS program in the near term.

The Independent Power Producers of New York and Dynegy Marketing and Trade filed separate protests asking FERC to order the ISO to increase the compensation rate to reflect inflation since the existing rate was set in 2002.