As in so many other states, solar incentive programs and renewable energy standards are being kicked around the state legislature in Indiana. Unfortunately, to this point, not much has been accomplished. Residential solar incentives are glaringly lacking. Indiana does have net metering, for which residential systems are eligible, but there is little other incentive for homeowners to make the jump. Here is what Indiana does have to offer:
Renewable Energy Property Tax Deduction
Residents of Indiana are eligible for a 100% deduction in property taxes for the value of solar energy systems. Unfortunately, a "solar" installation under this statute is defined only as systems using solar for water and space heat. Electric systems are still outside the exemption. See the Indiana Office of Energy & Defense Development (OED) for more information.
Net Metering
PV systems in Indiana, including residential, are eligible for state net metering rules. It involves only investor-owned utilities (IOUs) and has a system size limit of 10kW. Net excess generation is credited to the customer's next bill with no apparent expiration (should the customer decide to cancel the agreement, any excess will be credited to the utility).
Utilities may decide to impose an aggregate limit, of 0.1% of their most recent summer peak load, at their own discretion. For info on interconnection standards and other regulations, visit this website.
That's all for Indiana so far, although the present legislative session could make a difference. Indiana does have a state-funded grant program for renewable; but as of yet, residential systems do not qualify. According to Solar Power Rocks, the average residential solar electric system would not even return half its cost to the owner over 25 years. There is still a lot of room for progress in Indiana.
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