BOSTON (AP) — Residential customers of Eversource living in eastern Massachusetts will likely be seeing lower electric bills this summer.

The utility on Monday announced that it has filed for a 24 percent reduction in its basic service supply rate with the state Department of Public Utilities. If approved, the new rate would take effect July 1 and last six months.

The supply rate cut would save the typical residential customer using 600-kilowatt hours per month about $10 per billing period. It would be partially offset by an increase in the rate used to fund statewide energy efficiency programs.

Customers in the greater Boston service area would see their bills decrease to $120.34 from $129.89.

Bills for customers on the South Shore and greater New Bedford would fall to $126.43 from $135.98.