ComEd Sees Return to Residential Migration Growth, But Illinois Sees Lower Growth Overall

During August, Commonwealth Edison reversed a month-ago decline in the number of residential electric customers on competitive supply, but overall Illinois saw lower growth in residential shopping, according to the latest stats on PlugIn Illinois.

Specifically, from July 31 to August 31, ComEd saw the number of residential customers billed on competitive supply increase by 21,000 accounts to 2.330 million. This essentially reversed the loss of 20,000 residential shoppers from June 30 to July 31.

In fact, since the Chicago municipal aggregation customers began being billed on competitive supply earlier this year in March, ComEd residential migration has seesawed, influenced by other aggregations returning customers to default service, or later resuming operations.

Specifically, the change in the number of residential ComEd customers billed on competitive supply during each month (versus the end of the immediately prior month) has been:

April:    23,000
May:     (17,000)
June:     17,000
July:    (20,000)
August:   21,000

Ameren saw slower residential migration growth during August, particularly in Rate Zones II & III.

Specifically, Ameren Rate Zone I saw residential shopping increase by 12,400 customers during August (marginally above July growth), but Rate Zone II saw residential shopping growth of only 810 (versus 3,200 in July), and Rate Zone III saw residential shopping growth of only 3,600 (versus 49,000 in July).