Critics say the measure would muscle out smaller competitors from the emerging solar market.
The 21,000 panel solar farm will go on a portion of a former Continental Steel plant.
If approved, it would be Duke's largest solar facility in Indiana.
It will feature 76,000 solar panels on roughly 145 acres of land owned by NSA Crane, making it one of the largest solar facilities in Indiana.
Indiana kept with national trends over the last few years, as only two wind farms have been developed in the Hoosier state over the last four years.
A bill approved Wednesday in a House committee would allow utilities to charge future alternative energy customers a fee.
Duke Energy is seeking proposals from companies that want to supply it with solar energy in order to fulfill a legal settlement Duke made last year.
Solar panels will provide 60% of the energy at the Owen Valley Winery.
Gregg says nuclear power is not a good option because it could take two decades to get a nuclear plant online.
A local non-profit organization is hosting a tour of Bloomington’s solar technologies this weekend.