DES MOINES — Legislation that would cap some energy efficiency programs and alter the Iowa Utilities Board oversight of investor-owned utilities moved forward in the Iowa House, but likely will be amended by the Commerce Committee on Thursday.Senate File 2311 would restore a 2 percent cap on energy efficiency programs for electricity and 1.5 percent for natural gas utilities, allow customers to “opt out” of the programs and require utilities to show on customers’ monthly bills how much they are paying to help finance rebates and other incentives for consumer purchases of energy-efficient appliances and furnaces or for insulating homes.The bill faces a Friday deadline for committee approval to remain eligible for consideration in this legislative session.“It’s probably going to be amended.