Jacksonville utility rates prompt caution, compare full annual costs

Summer bills can make Homefield look pricier

Jacksonville households enrolled in the city’s electric aggregation program are seeing a familiar summer shock: the monthly bill can make Homefield Energy look more expensive than Ameren Illinois, even though the long-term picture is more complicated. For the current summer period, Ameren’s price to compare is 11.326 cents per kilowatt-hour from June 1 through September 30, 2026, while Homefield’s Jacksonville aggregation rate is 13.19 cents per kilowatt-hour for the June 2026 through May 2027 term.

On a sample 1,000-kilowatt-hour summer bill, that gap is easy to see. Ameren’s supply charge would come to about $113.26, while Homefield would be about $131.90, a difference of roughly $18.64 before delivery charges and taxes. That is the kind of monthly spread that can trigger frustration in a hot month, but city clerk Angela Salyer says that one summer bill is not enough to judge whether the aggregation program is the better deal over time.

The monthly math changes once the seasons turn

The comparison gets murkier because Ameren’s current summer price ends Sept. 30, 2026, but Homefield’s fixed Jacksonville rate runs all the way through May 2027. Ameren has not yet announced its next non-summer price for October 2026 through May 2027, and Salyer said another annual adjustment from Ameren is expected to take effect on Jan. 1, continuing a pattern the utility has followed for several years.

That means Jacksonville customers are comparing a known fixed rate on one side with an unfinished rate cycle on the other. The last non-summer Ameren price, covering October 2025 through May 2026, was 8.402 cents per kilowatt-hour for the first 800 kilowatt-hours and 7.483 cents above that threshold. Under that structure, a 1,000-kilowatt-hour household would have paid about $82.18 in supply charges, far below Homefield’s fixed summer-and-winter rate. But that older winter price does not tell residents what the next cold-season Ameren number will be.

For families trying to budget across the full year, the practical lesson is simple: summer is not the whole bill. A plan that looks expensive in July can still make sense if it protects a household from a higher winter reset, especially when the utility’s next non-summer rate is still unknown.

How Jacksonville’s aggregation program works

Jacksonville’s electric aggregation is part of a statewide system that lets municipalities and counties buy electricity for residents and eligible small businesses through one combined supply offer. Under Illinois law, it is an opt-out program, which means customers are automatically enrolled unless they decide not to participate. The Illinois Power Agency says only communities in Ameren Illinois and ComEd service territories are pursuing government aggregation at this time.

Consumer advocates say the arrangement can be useful, but it is not a guaranteed bargain. The Citizens Utility Board said municipal aggregation never guarantees savings, because market conditions, capacity costs and other utility charges can move quickly. CUB also notes that customers can opt out without paying an exit fee, although switching back to utility supply can take up to two months.

That makes aggregation less like a permanent lock-in and more like a timing decision. Residents who value predictability may prefer a fixed city plan even when one summer month looks worse. Others may decide the flexibility of dropping out is worth it if they want to chase the lowest short-term rate.

Why power prices are still under pressure

Ameren’s summer pricing has not risen in a vacuum. CUB said Ameren’s summer electricity price spiked above 12 cents per kilowatt-hour in 2025 after a jump in Midcontinent Independent System Operator capacity auction prices. Customer notices reported by local media have also pointed to tight supply during periods of high demand and extreme summer heat as a reason summer prices remain elevated.

That backdrop matters in Morgan County because power bills are already a visible household concern. When electricity costs rise, the effect is immediate and local: a family’s cooling bill climbs, a budget gets tighter, and the cheapest rate on one month’s statement may look far more important than the annual average. Jacksonville residents are seeing that tension now, with one utility price tied to a summer window and the other stretched across an entire year.

What Homefield’s paperwork says

Homefield Energy’s Jacksonville enrollment letter from Oct. 11, 2024 said the city selected Homefield after a competitive process and that eligible residents were automatically enrolled unless they opted out by Nov. 1, 2024. The letter also said there were no switching or early termination fees.

Those details matter because they explain why so many households ended up in the program in the first place. The city chose the supplier, the program defaulted residents into participation, and the exit terms were designed to be simple. For anyone who wants to leave, the move can be made without a fee, but the decision should still be based on the full annual cycle rather than a single hot-weather bill.

Who should review the choice now

Jacksonville residents who should take a fresh look at their aggregation choice include anyone who is paying close attention to summer bills, anyone on a fixed household budget, and anyone who is tempted to opt out only because Homefield now looks higher than Ameren for June through September. Those same households should also check whether they want rate stability through May 2027 or whether they are comfortable waiting for Ameren’s next round of pricing to be announced.

Salyer has directed callers with questions to Good Energy, the city’s consultant, at 844-686-4244. For residents in Jacksonville and across Morgan County, the real test is not which number looks better this month, but which plan fits the full 12-month bill cycle ahead.