All of it. Marshalltown is our largest, most established Marshall County market, but SolQ installs residential solar throughout the county — Melbourne, State Center, Albion, Le Grand, Liscomb, Haverhill, and every smaller Marshall County community in between. This page exists specifically to cover the whole county, not just the county seat.

If you live anywhere inside Marshall County’s borders, we almost certainly serve you. We named every incorporated Marshall County community we could confirm on this page, but unincorporated addresses and rural routes are covered too. Reach out and we’ll confirm coverage, utility, and crediting terms for your specific address before you commit to anything.

For most of the county, including Marshalltown, it’s Alliant Energy — per findenergy.com, Alliant is the largest provider in Marshall County by a wide margin, with an estimated 13,527 county customers. Consumers Energy Cooperative, a rural co-op headquartered in Marshalltown, serves an estimated 3,256 customers in Clemons, Ferguson, Haverhill, Laurel, Melbourne, Rhodes, and St. Anthony. State Center runs its own municipal utility (about 964 customers), and Grundy County REC covers Liscomb (about 192 customers). We confirm your exact provider before designing your system.

Alliant credits solar production through its Inflow-Outflow tariff: power you pull from the grid (inflow) is billed at your normal rate, and power you export (outflow) is credited separately at Alliant’s approved energy credit rate. SolQ checks the exact terms on your account before you sign anything. Full detail is on our dedicated Alliant Energy solar page.

Consumers Energy Cooperative is a member-owned rural electric co-op headquartered right in Marshalltown, with its own crediting structure separate from Alliant’s investor-owned tariff. State Center runs its own small municipal electric utility with an independent solar policy, and Grundy County Rural Electric Cooperative reaches Liscomb near the county line with its own co-op terms. We check which utility and rate structure applies to your account and explain exactly what it means for your savings before you sign anything.

No. Iowa’s state income-tax credit for residential solar isn’t available for systems installed after 2021. Two state benefits still apply regardless: a 5-year property-tax exemption on the added home value from your system, and a sales-tax exemption on qualifying solar equipment (labor is still taxable).

If you’re buying your system outright through cash or a loan, the federal Residential Clean Energy Credit (Section 25D) ended for systems placed in service after December 31, 2025, under the One Big Beautiful Bill Act signed in July 2025. If you go with a Lease or PPA instead, the benefit is still built in indirectly: our financing partner owns the system and claims a separate federal credit for commercial-owned solar (Section 48E, active for projects that begin construction by July 4, 2026, or are placed in service by December 31, 2027), which is part of how they can offer $0-down payments below what you’re currently paying your utility. We’ll walk you through exactly what applies to you during your free consultation.

Yes, and they vary by municipality within the county. Marshalltown runs its own permitting process, separate from Marshall County’s own rules for unincorporated areas and the county’s smaller towns. We handle the paperwork with your specific city or the county, and file the interconnection application with your utility, so you don’t have to sort out which office to call.

Many projects are installed in as soon as 30 days. Some take longer, up to 2-3 months, depending on your municipality’s permitting timeline and your utility’s interconnection queue. We give you a realistic timeline for your specific address up front.

Yes — 49 completed residential installs on record: 43 in Marshalltown and 6 in Melbourne, ranging 2.4–16.8 kW in system size, mostly on Alliant Energy accounts. We don’t yet have completed installs specifically in State Center, Albion, Le Grand, Liscomb, or Haverhill, and we say so directly rather than implying otherwise. That’s a real, verified local footprint backed by the same track record behind our 1,179 completed Iowa installs statewide.

An EF-3 tornado with winds near 144 mph tracked through Marshalltown on July 19, 2018, damaging the courthouse and other downtown buildings, along with the Lennox International plant on the east side of town. The city has since rebuilt substantially, including a fully restored courthouse dome and a renovated, nearly-million-square-foot Lennox manufacturing campus that reopened in 2023. It doesn’t change the electrical engineering, but it does mean Marshalltown has a real mix of recently rebuilt and older roofs, a mix SolQ’s crews evaluate on every quote rather than assuming a standard roof condition.

The Marshall County Courthouse, built in 1886, anchors Marshalltown’s historic downtown square. The 2018 tornado twisted and damaged its dome and clock-tower spire beyond repair; the county rebuilt both, including a new steel dome clad in copper panels, and rededicated the courthouse on November 19, 2022. That downtown square, along with the surrounding blocks of historic and mid-century homes, is part of why SolQ evaluates every Marshalltown roof individually rather than applying a generic template.