Ju

For

Easter

uly, 201

C

: NERC R

P

rn, WEC

2 Frequ

Corresp

Resources

repare by

CC, ER

uency E

pondin

s Subcom

y: CERTS

Date: Au

RCOT an

Events

g Frequ

mittee an

and Elec

ugust 24,

nd Hyd

’ Data S

uency

nd Freque

ctric Powe

2012

dro Que

Summa

Plots

ncy Work

er Group

ebec

ary and

king Group

d

p

 

NERC INTERCONNECTIONS JULY, 2012 FREQUENCY EVENTS – SUMMARY DATAEASTERN

WESTERN

ERCOT

HYDRO QUEBEC

Frequency Response can be calculated from NERC SA Actual MW Loss divided by 10* B‐A. The results will be in MW/0.1 HZ

8/24/2012

1

EASTERN INTERCONNECTION

JULY, 2012 FREQUENCY EVENTS

WESTERN INTERCONNECTION

JULY, 2012 FREQUENCY EVENTS

8/24/2012

2

8/24/2012

3

8/24/2012

4

ERCOT INTERCONNECTION

JULY, 2012 FREQUENCY EVENTS

8/24/2012

5

8/24/2012

6

8/24/2012

7

HQ INTERCONNECTION

JULY, 2012 FREQUENCY EVENTS

8/24/2012

8