Indiana Solar Panels

Under Indiana Code § 6-1.1-12-26, any increase in your home’s assessed value caused by a solar installation is fully excluded from your property tax assessment. This exemption applies to all residential and commercial solar systems installed after December 31, 2011, and does not require annual renewal once it is in place.

Because high-efficiency residential solar panels can add $20,000–$30,000 in home value, this exemption can save homeowners an estimated $124 or more per year at Indiana’s average property tax rate of around 0.75%. Over a 25-year system lifespan, that adds up to roughly $3,100 in cumulative savings — all without reducing the resale value benefit of your solar investment.

To claim the exemption, complete Form 18865 (Renewable Energy Property Tax Deduction) and submit it to your local county auditor’s office after installation. Once approved, the exemption remains in effect for as long as you own the system — no annual paperwork required.

Indiana exempts solar panels, inverters, mounting hardware, and other qualifying solar system components from the state’s 7% sales tax. For a typical residential solar system priced between $33,000 and $45,000, this exemption translates to an immediate upfront savings of approximately $2,300 to $3,200 — automatically applied at the point of sale.

To ensure the exemption is applied correctly, provide your solar equipment seller with a completed Indiana General Sales Tax Exemption Certificate (Form ST-105) at the time of purchase. Unlike a tax credit, there is no waiting for a refund — the savings come off your purchase price directly.

It is worth noting that some online sources suggest the exemption may be limited to certain categories of purchasers (such as utilities or qualifying electricity sellers) depending on how the statute is interpreted. Confirm eligibility with your installer or a tax professional before purchase to ensure you receive the full benefit.

Indiana’s five largest investor-owned utilities — AES Indiana, CenterPoint Energy, Duke Energy Indiana, Indiana Michigan Power (I&M), and NIPSCO — no longer offer traditional net metering to new solar customers. Instead, new installations are enrolled in the Excess Distributed Generation (EDG) program, also called net billing. Under EDG, any surplus solar electricity your system sends to the grid earns a bill credit at 125% of the utility’s avoided-cost rate, which typically works out to roughly 3–5 cents per kWh — well below the retail electricity rate of 14–17 cents per kWh. For example, AES Indiana’s current EDG credit rate is approximately 3.935 cents per kWh.

Systems eligible for EDG must have a maximum capacity of 1 megawatt (MW). Customers who installed solar before Indiana’s 2022 policy change may be grandfathered into the old full-retail net metering rates: systems installed before 2018 retain net metering until July 1, 2047, while systems installed between 2018 and the end of net metering for new customers retain it until July 1, 2032.

If your electricity is supplied by a rural electric member cooperative (REMC) or a municipal utility rather than one of the five large investor-owned utilities, you may still be eligible for more favorable net metering terms. Policies vary by provider, so contact your specific utility to confirm your options. Because EDG credits are significantly below retail rates, pairing your solar system with a battery storage system is increasingly recommended to maximize the value of your solar generation by consuming more power on-site.

NIPSCO (Northern Indiana Public Service Company) previously offered a Feed-In Tariff (FIT) program as a performance-based incentive for solar customers. Under the program, solar systems between 5 kW and 10 kW earned credits of $0.15–$0.17 per kWh generated, while systems above 10 kW earned $0.13–$0.15 per kWh — rates significantly higher than the current EDG avoided-cost credits available to new customers.

As of 2026, the NIPSCO Feed-In Tariff program is closed to new applicants and is not accepting new solar installations. Existing participants who were enrolled before the program closed continue to receive their contracted rates. Earnings from the FIT are considered taxable income and must be reported accordingly.

NIPSCO customers installing solar in 2026 will instead be enrolled in Indiana’s standard Excess Distributed Generation (EDG) net billing program. For the most current information on NIPSCO’s renewable energy programs, visit the official NIPSCO website or contact NIPSCO’s New Business team directly.

The City of Bloomington’s Green Home Improvement Program (BGHIP) provides cash rebates to Bloomington homeowners who install solar panels or battery storage systems. For solar panel installations, the general population receives a rebate equal to 20% of the project cost (up to $5,000), while low-income homeowners qualify for 40% of the project cost (up to $10,000). For battery storage systems, the general population rebate is 25% of project cost (up to $5,000), and low-income homeowners can receive 40% (up to $8,000). The minimum rebate is $500, meaning the minimum qualifying project cost is $2,000 for general applicants and $1,250 for low-income applicants.

A key advantage of BGHIP is that a simultaneous installation of solar panels and a battery energy storage system qualifies for both rebates at the same time — an exception to the standard one-rebate-per-household-per-year rule. This means a low-income Bloomington homeowner who installs solar and battery storage together could receive up to $18,000 in combined rebates. BGHIP rebates can also be stacked with Indiana’s state sales tax and property tax exemptions, as long as the total of all rebates and incentives does not exceed the total project cost.

Applications must be submitted and pre-approved before starting the home improvement project to ensure funding availability. After pre-approval, applicants have 60 days to submit proof of a paid contractor deposit and a completed W9/EFT form. The City of Bloomington has also partnered with Clean Energy Credit Union and Hoosier Hills Credit Union to offer loans with a 0.5% bought-down interest rate for BGHIP recipients, making financing more accessible for those who need it.

The City of Bloomington’s Sustainable Energy Equity and Leadership (SEEL) Program provides grants to nonprofits and small businesses to help cover the cost of solar and battery storage installations. Grant amounts include up to $25,000 for a solar PV system installation, up to $20,000 for a standalone battery energy storage system (nonprofits only), or a combined grant of up to $45,000 for a simultaneous solar and battery installation (nonprofits only). Battery storage grants are specifically reserved for nonprofits that provide essential social services related to food, health, housing, or similar community needs.

The 2026 program cycle supports up to 9 new solar grants, or a mix of solar and battery grants, with applications accepted on a rolling basis until all program funding has been allocated. Technical assistance is also available to help eligible organizations navigate the solar installation process, from understanding system options to working with contractors.

This program is distinct from the residential BGHIP rebate and is designed specifically for nonprofit organizations and small businesses located within Bloomington city limits. Interested applicants should apply early, as funding is limited and awarded on a first-come, first-served basis until the cycle’s grant capacity is reached.

The PowerSave Indiana Loan Program is offered by the Indiana Energy Independence Fund (IEIF), Indiana’s nonprofit green bank, and provides below-market, unsecured financing for residential solar panels and battery storage systems statewide. Unlike a rebate or tax credit, this program helps homeowners access affordable financing to go solar without needing home equity or a high credit score, making it a valuable tool for those who want to install solar but face upfront cost barriers.

The program is available to Indiana residents statewide — not just in specific cities — and can be used for solar PV systems, battery storage, and complementary energy upgrades. Because the loan is unsecured, your home is not used as collateral, which reduces risk for the borrower.

For the most current loan terms, interest rates, and application details, contact the Indiana Office of Energy Development (OED) directly at [email protected] or visit the Indiana OED website. Program terms and availability may change, so it is recommended to confirm current offerings before applying.

The USDA Rural Energy for America Program (REAP) provides grants and loan guarantees to agricultural producers and rural small businesses in Indiana to help offset the cost of renewable energy systems, including solar PV and battery storage. Grants can cover up to 50% of eligible project costs, with individual grant awards capped at $1,000,000, making this one of the most substantial incentives available to qualifying rural Indiana businesses and farms.

To be eligible, applicants must be an agricultural producer (farmer, rancher, or other agricultural operation) or a small business located in a rural area as defined by USDA guidelines. The solar or battery storage system must be installed at the applicant’s agricultural or business property. Applications are accepted on a competitive basis through USDA Rural Development, and funding is subject to annual appropriations.

Indiana residents and businesses interested in REAP should contact their local USDA Rural Development state office for current application deadlines, funding availability, and eligibility requirements. Because this is a federal grant program administered at the state level, requirements and timelines can vary by funding cycle.