Net Metering (Utility Option)

May 16, 2005


Indiana law allows the state's investor-owned utilities (IOUs) to offer net metering to customers with renewable-energy systems. Three Indiana IOUs currently offer net-metering contract riders: Indianapolis Power & Light Company (IPL), Southern Indiana Gas and Electric Company (SIGECO) and PSI Energy. Each of these utilities limits system capacity to 10 kW and caps the total capacity of all net-metered systems. PSI Energy has imposed a system-wide cap of 10 MW; SIGECO has a system-wide cap of 1.2 MW, and IPL's system-wide cap is 1 MW. In all cases, for generators producing less than 1,000 kWh per month, net excess generation (NEG) is granted to the utility. For systems producing more than 1,000 kWh per month, generators may request that the utility purchase NEG, in which case two meters would be installed. So far, this program has been used primarily by owners of small wind turbines. The Indiana Utility Regulatory Commission (IURC) issued mandatory net-metering rules in September 2004, requiring the state's investor-owned utilities (IOUs) to offer net metering to residential customers and K-12 schools. These new rules apply to solar, wind and hydro projects with a maximum capacity of 10 kilowatts. It is unclear if Indiana's mandatory net-metering policy will affect the optional policies implemented by some of the state's IOUs.

Program Overview

Implementing Sector: State
Category: Regulatory Policy
State: Indiana
Incentive Type: Net Metering
Web Site:
Start Date:
Eligible Renewable/Other Technologies:
Applicable Utilities: 1,000 kWh/month
System Capacity Limit: Varies by utility
Aggregate Capacity Limit: Granted to utility
Net Excess Generation: Voluntary basis
Ownership of Renewable Energy Credits: Under development


Name: 170 IAC 4-4.1-1 et seq.
Date Enacted: 3/7/85


Name: Laura Cvengros
Organization: Indiana Utility Regulatory Commission
Address: 302 West Washington Street, Suite E306
Indianapolis IN 46204
Phone: (317) 233-5315

This information is sourced from DSIRE; the most comprehensive source of information on incentives and policies that support renewables and energy efficiency in the United States. Established in 1995, DSIRE is operated by the N.C. Clean Energy Technology Center at N.C. State University.