Florida Power and Light will ask the state to impose a monthly surcharge starting next year to recoup costs from Hurricane Irma.

FPL's parent company told Wall Street analysts Thursday that it will request a surcharge equal to $4 a month on a 1,000 kilowatt hour bill starting March 2018.

Customers were already paying a surcharge for damage from Hurricane Matthew, but that surcharge will be gone by then. 

FPL also wants to increase the surcharge to $5.50 a month in 2019. The company expects the surcharge, if approved, to go until the end of 2020, when those costs should be fully recovered.

FPL says preliminary costs from Hurricane Irma are at about $1.3 billion.

The Florida Public Service Commission, the government body that monitors utility services in the state, would have to approve the surcharge.

FPL has not filed for the surcharge with PSC yet.