Nearly 3 Million Illinois Residents Now Shopping for Electricity

Nearly 3 million Illinois residential customers were shopping and billed on competitive electric supply as of March 31, according to the latest snapshot of migration from the Illinois Commerce Commission.

Specifically, from February 28 to March 31, the number of residential customers billed on competitive supply grew by 900,000 accounts to 2.8 million, driven principally by opt-out aggregations, including the City of Chicago's large aggregation.

As has been noted previously, the ICC migration statistics discussed in this story reflect customers who have switched to a competitive supplier and have completed at least one billing cycle on competitive supply. Accordingly, the data lags completed enrollments.

Specifically, the growth in the number of residential electric accounts on competitive supply was as follows from February 28, 2013 to March 31, 2013:

ComEd:                         839,604
Rate Zone I, AmerenCIPS:        31,846
Rate Zone II, AmerenCILCO:       2,558
Rate Zone III, AmerenIP:        32,237

The total number of residential customers on competitive supply at each utility as of March 31, 2013 was:

ComEd:                      2,307,292
Rate Zone I, AmerenCIPS:      139,615
Rate Zone II, AmerenCILCO:    138,876
Rate Zone III, AmerenIP:      259,180