Duke on Monday filed a request that asks state regulators to approve a proposal to drop an average $3.45 a month charge from bills. A spokesman for Duke said the charge could be removed as soon as this summer.
Duke announced in 2013 it was abandoning plans to build the plant in Levy County on Florida's Gulf coast.
Some of Duke's billing practices have created an outcry. There is a push during this year's legislative session to place additional restrictions on utilities.