Dayton Power and Light Co. is seeking approval from the Federal Energy Regulatory Commission to change its existing stated transmission rate to formula transmission rates.

If fully approved, the change would increase the company's revenues by approximately $4.1 million through the end of 2020, according to a March 6 filing.

In its March 3 application, the AES Corp. subsidiary cited its plan to construct approximately $170 million in new or upgraded transmission facilities over the next five years as the main factor driving its request. The amount represents a 40% increase in the utility's current gross transmission investment and is on top of typical investments for capitalized repairs and minor upgrades.

Dayton Power and Light expects FERC to allow the rate to take effect May 3, subject to further proceedings and a possible refund. (FERC docket ER20-1150)