The Kentucky Economic Development Finance Authority has approved an incentives package for General Electric to expand operations at Louisville's Appliance Park.The move could create 420 jobs at the facility.GE says it is considering an expansion of its Louisville operations to include production of energy-efficient appliances, beginning with a hybrid hot water heater.The state incentives package is worth $10 million.The Louisville Metro Council has also approved a request for $2.5 million in tax incentives for the same expansion project.Meanwhile, in a separate action, union workers at Appliance Park voted Wednesday to approve wage concessions requested by the company in exchange for a promise of job security and the addition of 100 new positions.