CENTRAL ILLINOIS (WCIA) -- People can expect to see less expensive energy bills now that October has arrived.

Starting June 1, Ameren customers saw as high as a $45 increase in their electric bills following a resource auction by the Mid-Continent Independent System Operator (MISO), the regional grid operator for the Ameren service territory. The price increase was driven by a tightening supply-demand balance during the hot months of summer.

It was known from the beginning, however, that this increase would be temporary and that it would end on Oct. 1. On Wednesday, the Citizens Utility Board (CUB) said in a consumer alert that Ameren's rate has indeed dropped.

The fall supply price is listed at 8.4 cents per kilowatt-hour for up to 800 kWh of usage, which is a 31% decrease from the sum

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