Indiana Solar Guide: Hoosier State Solar Options

Indiana offers property tax exemptions and net metering, making solar viable for Hoosier homeowners despite modest state incentives. Rising utility rates are driving increased solar adoption.

Quick Answer
Indiana offers property tax exemptions and net metering for solar, though net metering is being phased out. Acting sooner can lock in better long-term terms. With 4.4 peak sun hours and rising Duke Energy and AES Indiana rates, expect 10-13 year payback periods. Best for homeowners planning to stay long-term.

Indiana Solar Overview

💡
From my experience:

Indiana is a "move now" situation. Net metering is being phased out, and once it is gone, the economics get a lot harder. If you are thinking about solar in Indiana, getting in while you can still lock in net metering terms is smart. Duke Energy and AES rates keep climbing, which helps the math. The property tax exemption is nice too.

Indiana isn't a solar leader, but property tax exemptions and net metering requirements make solar work for many homeowners. With Duke Energy and AES Indiana rates rising, solar is becoming more attractive in the Hoosier State.

[Editor's Note, Jan 2026]:Indiana net metering phase-out is ongoing. Check current grandfathering provisions and export rate structures with your utility. Acting sooner may lock in better terms.
Indiana Solar Facts
Indiana averages 4.4 peak sun hours daily—typical for the Midwest. The state requires net metering for investor-owned utilities and exempts solar from property taxes. Payback typically runs 10-13 years. (Source: NREL Solar Resource Data)

Why Indiana Can Work for Solar

  • Net metering: Required for IOUs until phase-out
  • Property tax exemption: Solar value excluded
  • Rising rates: Duke and AES rates trending up
  • Moderate sunshine: 4.4 peak sun hours average
  • Competitive pricing: Growing installer market

State Incentives

Indiana Programs

  • Property tax exemption: 100% of solar value excluded
  • Net metering: Required, but being phased out
  • No state tax credit: Indiana doesn't offer state credit
  • Utility programs: Check for current rebates

Federal Options

  • Purchased systems: No federal credit (25D ended 2025)
  • PPA/Lease: Still benefits from 30% credit through 2027

Net Metering

Indiana Policy

  • Current status: Net metering being phased out
  • Grandfathering: Existing customers may keep net metering
  • New customers: May receive reduced export rates
  • Action: Installing sooner locks in better rates
Net Metering Phase-Out
Indiana is phasing out 1:1 net metering. New solar customers may receive reduced export credits. If you're considering solar in Indiana, acting sooner may lock in better long-term economics. (Source: utility tariff filings and DSIRE Database)

Solar Costs

System SizeGross CostAfter Incentives
6 kW$15,000-18,600$15,000-18,600
8 kW$20,000-24,800$20,000-24,800
10 kW$25,000-31,000$25,000-31,000

Major Utilities

Duke Energy Indiana

  • Service area: Central and southern Indiana
  • Net metering: Subject to phase-out schedule
  • Programs: Check current rebate availability

AES Indiana (formerly IPL)

  • Service area: Indianapolis metro
  • Net metering: Subject to phase-out schedule
  • Rates: Among higher in state

Production Estimates

  • Annual production: 1,200-1,350 kWh per kW installed
  • 8 kW system: ~9,600-10,800 kWh/year
  • Best months: May-August

The Bottom Line

Indiana solar is viable but timing matters. The net metering phase-out means acting sooner may provide better long-term economics. Property tax exemptions help, but expect 10-13 year payback.

Questions About Indiana Solar?

Our AI can help you understand the net metering phase-out and your best options.

Ask About IN Solar
LP

Written by

Lincoln Panasy

Founder, SolarQuest AI • Solar Expert Since 2018

Lincoln created SolarQuest AI after seeing too many homeowners get burned by pushy solar salespeople. With 8 years of experience in the solar industry since 2018, he writes and reviews all content on this site—combining his real-world expertise with AI tools to deliver accurate, unbiased solar education.