As of May 2026, the average storage system cost in Barnstable County, MA is $1148/kWh. Given a storage system size of 13 kWh, an average storage installation in Barnstable County, MA ranges in cost from $12,687 to $17,165, with the average gross price for storage in Barnstable County, MA coming in at $14,926. After accounting for 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.
| System Size | System Cost |
|---|---|
| 10 kWh | $11,482 |
| 13 kWh | $14,926 |
| 20 kWh | $22,963 |
| 26 kWh | $29,852 |
$20,602 - $60,252
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.
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