Solar Panels in Shiloh, IL: Cost, Payback & Savings
A typical 6.0 kW home solar system in Shiloh costs about $21,600 and pays for itself in about 17.0 years, saving roughly $12,891 over 25 years at Illinois' average electricity price of 19.2¢/kWh. Power you send back to the grid earns only about 8.3¢/kWh here, which is built into these numbers.
Monthly solar production in Shiloh
Estimated output of a 6.0 kW south-facing roof system. Jun is the strongest month (928 kWh); Dec the weakest (426 kWh).
Solar production (kWh) Typical home use, 693 kWh/month
Solar payback calculator for Shiloh
Pre-filled with Shiloh's sunshine and Illinois' average electricity price. Enter your own bill and an installer's price per watt to see your payback.
Leave export credit blank where the utility offers full net metering. Where exports earn less, solar used at home as it's produced is worth the full price and the rest earns the export credit.
How Shiloh compares
- Each kW of panels here produces about 1,419 kWh a year — 6% more than the Illinois median and 4% more than the US median city (1,371 kWh).
- Payback ranks #2 of 242 Illinois places we cover.
- Sunshine varies little across a state; electricity price, installed cost and how utilities credit exported power drive most of the difference between states.
Net metering, tax credits and incentives in 2026
Illinois pays less than retail for exported solar power. Under Supply-only net metering, power you send to the grid earns about 8.3¢/kWh, against 19.2¢ for power you buy. We assume 40% of a no-battery system's output is used at home as it's produced (worth the full price) and the rest is exported, so each solar kWh is worth about 12.7¢. Using more of your solar yourself, by running appliances midday or adding a battery, raises that.
Systems interconnected from 2025 are credited for exports at the electricity supply rate (ComEd's 2025 average was about 8.3¢), not the full delivered rate. Illinois Shines renewable-energy-credit payments and utility inverter rebates can shorten payback considerably and are not included here. Source.
There is no federal tax credit for buying home solar installed in 2026. The 30% Residential Clean Energy Credit (Section 25D) ended for systems placed in service after December 31, 2025, so the costs and paybacks on this page include no federal credit.
Illinois and local utilities may still offer rebates, performance payments, property-tax or sales-tax exemptions. Search the DSIRE incentives database for Illinois and ask installers which programs they apply for you.
Frequently asked questions
Is solar worth it in Shiloh, IL?
For a typical home, a solar system pays for itself in about 17.0 years and then keeps saving money. Over 25 years the estimated net savings are $12,891. Verdict: slow payback. Your own payback depends on your roof, your bill and the quotes you get.
How many solar panels do I need in Shiloh, IL?
A home using 693 kWh a month (the Illinois average) needs about 15 panels of 400 W — a 6.0 kW system — to cover its annual use. Divide your own yearly kWh by 1,419 to get the kW you need.
How much do solar panels cost in Shiloh, IL?
At 3.60 dollars per watt, a 6.0 kW system costs about $21,600 before any state or utility incentives. There is no federal tax credit for systems installed in 2026.
How much sun does Shiloh get?
Shiloh averages 5.0 peak sun hours per day, so each kilowatt of panels produces about 1,419 kWh a year.
Does Illinois have net metering?
Not full retail net metering. Under Supply-only net metering, exported solar power earns about 8.3¢ per kWh, versus 19.2¢ for power bought from the grid. Solar you use at home as it's produced still saves the full price.
How much does electricity cost in Illinois?
Residential electricity in Illinois averages 19.2¢ per kWh, and a typical home uses 693 kWh a month (EIA).
Solar payback in nearby places
- O'Fallon17.3 yrs
- Swansea17.3 yrs
- Fairview Heights17.2 yrs
- Belleville17.3 yrs
- Collinsville17.5 yrs
- Troy17.4 yrs
- Glen Carbon17.4 yrs
- East Saint Louis17.4 yrs