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Iowa Solar Information

Iowa isn’t a bad state for solar. There’s always enough sunshine to cover your basic energy needs or at least to reduce your monthly electricity bill. The 26% Federal Solar Tax Credit as well as some local incentives will make your solar installation even more profitable.
  • #34
    Iowa ranks #34 in the USA for savings from installing solar panels
  • 5961.86 kWh
    Annual AC energy output of a 4 kW solar system installed in Iowa
  • 4.96 kWh
    Solar Radiation (kWh / m2 / day)
  • 13 ¢ /kWh
    The cost of electricity today in Interstate Power & Light Co
  • 27 ¢ /kWh
    If you don't go solar. The forecast average utility price over the next 25 years

Iowa Solar Facts

  • $1.35
    Average cost of a 4kw solar power system in 2019.
  • 4 years
    Average system payback period.
  • $57 413
    Average lifetime savings.
  • 5 ¢ /kWh
    Levelized cost of solar energy.
  • 5 kW
    Recommended system size.
  • Solar Power System Cost in Iowa
  • $1.35 per watt
  • $5 993 total
  • 4 years

Solar power in Iowa is limited but growing, with 96 MW installed by the end of 2018 with 21 MW installed within the last year, ranking the state 39th among U.S. states. Iowa's position as a major wind power provider may have limited early solar investment. Over 12,000 Iowa homes are powered by solar energy, accounting for 0.17% of the state's total electricity production in 2019. Solar on rooftops can provide 20% of all electricity used in Iowa. On June 7, 2012, Sky Factory in Fairfield became the first company in the state to generate all of their electricity from solar power, with the installation of a 54 kW 3500 sq. ft. solar array. Prior to that one of the largest arrays was the 15.75 kW array on the Marshalltown Public Library. Currently, a 5 megawatt (MW) array near Dubuque is the largest in the state since its construction by Alliant Energy in September, 2017. Over the next 5 years 411 MW in additional capacity is projected, bringing the state to a possible 33rd place rank in the nation.

Net metering is available continuously to all consumers generating up to 500 kW, one of the best policies in the country[10] but is given a B because of not being available to large, megawatt users. A feed-in tariff is available for customers of the Farmers Electrical Cooperative for up to 25% of their electricity. It pays 20 cents/kWh for electricity generated, none of which can be directly used – a separate meter is required, in a parallel connection, making it a power purchase agreement, instead of a feed-in tariff. The state of Iowa has proposed a feed-in tariff, in Senate bill SF 225. A separate rate applies for systems less than 20 kW and systems from 20 kW to less than 20 MW.

In December 2011, Des Moines-based MidAmerican Energy Holdings, a Berkshire Hathaway company, purchased the Topaz Solar Farm, which when completed, at 550 MW, was the largest in the world.

Tell us how much you are spending on electricity and we’ll calcalute how much you can save if you go solar
According to Interstate Power & Light Co, we received the cost of kWH in your area and calculated energy consumption based on an average electricity bill for 3 months.
I am claiming the 26% Federal Tax Credit (ends 2020) i

When you install your solar system, 26% of your project expenses apply toward a credit to offset any taxes you owe that year. This federal tax credit is a major incentive to go solar, but it is being phased out by 2022.

Most people are eligible to claim this credit (you must owe federal taxes to be eligible).

System size

  • Mini
  • Small
  • Medium
  • Large
We recommended
4.45 kW medium system size
Provides up to 80% of electricity consumption
$1.35 per watt
Average system cost
  • image rec 3
    14 x 325 watt
    solar panels
  • +
  • image rec 3
    14 x 300 watt
    microinverter
  • +
  • image rec 3
    1 x 5 000 watt
    inverter
$99.76 / month
Estimated savings on your average quarterly bill
  • $5 993.17
    Estimated system cost
    Excludes 26% Federal Tax Credit.
    This price does not include the installation cost.
  • 4 years
    Average system payback period
  • $57 413.46
    Estimated utility savings

Example of 4 kW system calculation in Minnesota for electricity bill $100

  • 13 ¢ /kWh
    The cost of electricity today in Interstate Power & Light Co
  • 27 ¢ /kWh
    If you don't get solar. The forecast average utility price over the next 25 years
  • 5 ¢ /kWh
    levelized cost of solar energy

Relevant product for your system

Entry-level solar panels x 14
$2,602.32
  • View
  • View
Entry-level microinverter x 14
$2,001.15
  • View
Entry-level inverter x 1
$1,523.11
  • View
  • View
In stock
Canadian Solar 315W Solar Panel 120 cell CS3K-320MS Monocrystalline Black - A1 Solar Store 28% Off
Cell number 120 cell
DC/Charger Volt Compatible 12v, 24v, 48v
Price per Watt $0.52
Rated Power Output 315 W
Voltage (VOC) 40.1V
Cell Type Monocrystalline
In stock
Canadian Solar 325W Solar Panel 60 cell CS1H-325MS Monocrystalline Black - A1 Solar Store 30% Off
Cell number 60 cell
DC/Charger Volt Compatible 12v, 24v, 48v
Price per Watt $0.57
Rated Power Output 325 W
Voltage (VOC) 43.4V
Cell Type Monocrystalline
In stock
LONGi 320W Solar Panel 120 cell LR6-60HPH Modules - A1 Solar Store
Cell number 120 cell
DC/Charger Volt Compatible 12v, 24v, 48v
Price per Watt $0.48
Rated Power Output 320 W
Voltage (VOC) 40.6 V
Cell Type Monocrystalline
In stock
Canadian Solar 320W Solar Panel 60 cell CS1H-320MS-Black Monocrystalline - A1 Solar Store 30% Off
Cell number 60 cell
DC/Charger Volt Compatible 12v, 24v, 48v
Price per Watt $0.55
Rated Power Output 320 W
Voltage (VOC) 44 V
Cell Type Monocrystalline