The new solar power plants will add up to the eight solar projects of a combined capacity of 600MW that were announced by the utility recently.

FPL stated that it is looking to increase clean energy generation through its solar expansion and natural gas plant modernization projects. The utility added that its efforts could result in energy savings of more than half a billion dollars for its customers.

FPL president and CEO Eric Silagy said: "We continue to advance affordable clean energy strategically – making substantial improvements year after year while keeping overall electric rates lower than they were 10 years ago.

"We're currently building some of the lowest-cost solar ever seen in America, and our investments in more efficient natural gas technology are delivering enormous savings and environmental benefits for our customers and our state.

Construction of the 1.5GW solar power plants is slated to begin in 2019 and the projects are expected to be completed in 2023.

According to FPL, the new solar plants of an overall capacity of 2.1GW will generate enough energy that would be consumed by more than 420,000 households.

The Florida electric utility has planned to phase out the projects by adding around 300MW of new solar capacity each year from 2017 through 2023.

Locations for the new series of solar power plants are being explored by FPL. The utility disclosed that the solar projects, including the previously announced 600MW and the 1.5GW projects, would use about 9 million solar panels.

Last month, FPL finalized the locations and names of the eight solar projects which would each be of 74.5MW capacity.