money circle icon

Storage cost in
Illinois

Updated 8/4/2024

How much do storage systems cost in Illinois in 2024?

As of September 2024, the average storage system cost in Illinois is $1836/kWh. Given a storage system size of 13 kWh, an average storage installation in Illinois ranges in cost from $20,289 to $27,449, with the average gross price for storage in Illinois coming in at $23,869. After accounting for the 30% federal investment tax credit (ITC) and other state and local storage incentives, the net price you'll pay for solar can fall by thousands of dollars.

Importantly, these costs are typical for shoppers comparing storage quotes on the EnergySage Marketplace. When you compare quotes for solar panels and batteries on EnergySage's competitive marketplace, you can expect to see prices up to 20% lower than working with a single company.

Average storage system cost by system size in Illinois

System Size System Cost System Cost (after ITC)
10 kWh $18,361 $12,853
13 kWh $23,869 $16,709
20 kWh $36,722 $25,706
26 kWh $47,739 $33,417
Note: you can't claim the federal tax credit without installing solar panels alongside a battery system.

2024 average solar + storage cost in Illinois

$27,781 - $79,139

There are several variables that impact the price you pay for a solar + storage system: the quality of the equipment you install, the type of inverters you choose, and the storage capacity and chemistry of your battery. This is an average price range for solar + storage installations in your area, and the specifics of your project will change the final price you pay.

battey size range image

Top 5 quoted battery models in Illinois

Enphase Energy IQ Battery 5P
Tesla Powerwall 2
FranklinWH Energy Storage Inc…
Enphase Energy IQ 10
SolarEdge Technologies BAT-10…

Top storage system installers in Illinois

See more storage companies in IL arrow icon