This bill creates a grant program for public buildings over 20,000 square feet (including schools, hospitals, public housing, and government facilities) to cover 100% of costs for mechanical insulation upgrades. Applicants receive a free energy audit from a certified contractor to identify missing or damaged insulation, then get grants covering all qualified materials and labor for installing insulation on pipes, HVAC systems, and equipment. The program requires specific state funding to operate and is administered by Iowa's Economic Development Authority. Grants are limited to projects that improve energy efficiency through proper mechanical insulation.
This bill exempts ethanol-blended gasoline containing 85% or more ethanol (like E85) from Iowa's excise tax when purchased exclusively for use in farm equipment (implements of husbandry) used in agricultural production. It directly affects farmers and agricultural suppliers who buy this specific fuel for farming operations. To qualify for the exemption, purchasers must provide a valid exemption certificate to the supplier, which must be signed, complete, and retained by the supplier for three years. If the fuel is later used outside agricultural production, the purchaser must pay the excise tax directly to the Iowa Department of Revenue.
HF 2283 requires Iowa's public utilities and transmission companies to study grid-enhancing technologies (like dynamic line rating systems) and reconductoring (replacing conductors with more efficient ones) by January 1, 2027, with updates every three years. The studies must evaluate how these approaches could increase transmission capacity, reduce congestion, support renewable energy integration, improve reliability, and minimize land impacts. Municipal utilities, cooperatives, and single-customer transmission lines are exempt from this requirement. Utilities must submit these public studies to the Iowa Utilities Commission, which may rely on existing analyses from regional organizations to meet the reporting obligation.
HF 2672 establishes Iowa's community solar program, allowing multiple subscribers to share benefits from solar facilities through bill credits. The bill sets specific rules: facilities can generate up to 5 megawatts (20 megawatts on brownfield sites), must have at least three subscribers, and require at least 60% of capacity to be subscribed by small users (under 40 kilowatts). Utilities must provide bill credits based on a commission-approved "value of solar" rate, with unused credits carried over monthly but forfeited annually. The program clarifies community solar does not count as a public utility or duplicate existing infrastructure, aiming to expand solar access while protecting non-participating customers from direct costs.
HF 2257 sets new rules for where and how renewable energy facilities (like wind turbines, solar farms, and battery storage systems) can be built in Iowa. It requires local governments to follow specific minimum distances from homes, community buildings, roads, and other properties - such as 2 times a wind turbine's height from occupied homes or 50 feet from nonparticipating property for solar. The bill also limits noise (max 47 decibels) and shadow flicker (max 30 hours/year) near residences, while requiring facilities to meet national safety and fire codes. These rules apply to all new renewable projects proposed after January 1, 2026, directly affecting developers, local zoning boards, and nearby property owners.
This bill requires Iowa state agencies to ensure that any passenger vehicle rented or leased with a diesel engine can use biodiesel fuel blended at 20% or higher (B-20). Specifically, it mandates that private vendors must provide manufacturer documentation confirming the vehicle's engine is compatible with B-20 biodiesel before being awarded state contracts. The requirement applies to all new or renewed rental/lease contracts issued on or after July 1, 2026. It extends an existing certification rule currently used for state vehicle purchases to the rental/lease procurement process. The bill does not mandate biodiesel use but ensures state vehicles can utilize this fuel type if chosen.
SSB 3178 requires wind energy developers in Iowa to conduct mandatory subsurface and environmental surveys by licensed professionals before obtaining construction permits. These surveys assess risks to karst terrain, groundwater, wells, septic systems, and nearby structures, with reports shared publicly and submitted to county boards and state agencies. Developers must also secure third-party insurance covering identified risks (like contamination or structural damage) and obtain a legal opinion confirming the project isn’t a nuisance. Violations carry daily civil penalties of at least $5,000 and allow affected landowners to sue for damages, injunctions, or $10,000 per violation. The bill directly affects wind facility applicants, county permitting bodies, and nearby residents whose properties may face environmental or structural risks.
SF 2214 requires Iowa's Department of Transportation (DOT) to coordinate with utility companies upon written request when planning transmission line placements on highway corridors. It mandates the DOT to assign a project coordinator within 30 days and share future highway project plans that might affect transmission lines. The bill allows longitudinal transmission lines on primary roads (including interstates) with DOT approval, unless safety or highway function is threatened, and requires public disclosure of denial reasons within 90 days. This directly affects utility companies seeking to install lines along highways and the DOT's permitting process. The law updates existing rules to create a more structured, timely coordination process for transmission line installations.
HF 2372 requires Iowa's Department of Administrative Services to contract with qualified contractors to assess mechanical insulation (insulation around pipes, boilers, and HVAC systems) in all state-owned public buildings within 10 years. The assessment must identify energy-saving opportunities, health risks, and necessary repairs, with findings posted online within 30 days. If repairs could cut carbon emissions and energy use by over 30%, the department must implement them within 12 months; immediate action is required for health or safety issues. The law expires on July 1, 2037.
SF 2433 updates Iowa's electrical code framework by adopting the International Energy Conservation Code (IECC), 2009 edition, as the "national energy code." It requires the electrical board to analyze cost impacts on new homes before adopting energy code changes, and mandates sellers of single-family homes built after January 1, 2027, to disclose in writing if the home doesn't meet the 2024 IECC standards. This bill directly affects homebuilders, electrical code administrators, and home sellers/buyers. The key mechanisms are the pre-adoption cost analysis and the new disclosure requirement for home sales. The bill takes effect January 1, 2027.
