Gainesville Regional Utilities' new biomass plant faces a new challenge.

An advocacy group called "Gainesville Citizens Care" filed suit in circuit court...claiming that a purchase agreement approved by the city and GRU is in violation of the state's Sunshine Law.

In May 2008, city leaders authorized GRU General Manager Bob Hunzinger to finalize a contract with an out of state company to construct the facility under certain guidelines.

"Gainessville Citizens Care" claims Hunzinger appointed an advisory committee to serve as a negotiating team for the contract. The suit claims they didn't meet in public.

The group says that is in violation of Sunshine Law and is asking the court to void the biomass contract.