Feb 26 | WEBINAR | Top 3 Solar Battery Incentives in 2026
Learn the top 3 solar battery incentives for homeowners & businesses in 2026, including Illinois rebates & Tesla Next Million Powerwall Rebate.
Businesses in Illinois and Missouri can significantly reduce their energy overhead costs by stacking federal tax credits, accelerated depreciation, state incentives, and utility rebates.
In 2026, most commercial projects leverage the 30% Federal Investment Tax Credit (ITC). When combined with the Illinois Shines (SREC) program or other available rebates, these commercial solar incentives can offset a substantial portion of the initial investment, often resulting in a payback period of 3 to 7 years. Get started with our commercial solar installers today!
Choosing solar is a significant financial decision, and it requires a partner with deep local roots. Since 2006, StraightUp Solar has completed more than 3,200 projects across Missouri and Illinois.
Our longevity means we have successfully navigated every major policy shift, ensuring our clients lock in the highest possible incentives. We focus on creating long-term value through excellence from initial design to long-term care with our dedicated full-time service team. We can help guide you through available incentives and financing options.
Like your business, every solar project is unique. Rather than using “one-size-fits-all” pricing, our experts create custom assessments based on your specific operational needs. Several factors influence the final cost of your system:
While the “sticker price” varies, the combination of 2026 incentives significantly reduces the net cost of going solar, turning a utility expense into a high-performing asset.
The FITC provides 30% of the full solar system cost back as a credit against your total tax liability for the year your system is installed. Bonus adders are available for projects utilizing domestic content or for businesses located within energy communities. Projects that begin construction by July 4, 2026 must be placed in service within four calendar years. Projects that begin construction after July 4, 2026 can only receive the credit if the project is placed in service by December 31, 2027. Safe harbor regulations can lengthen the project’s time frame. Our Project Developers can explain the tax credit’s application to your project.
Learn the latest rules and deadlines for the Commercial Solar Tax Credit.
In 2026, many businesses can take advantage of 100% Bonus Depreciation, allowing for a full deduction of the system’s depreciable basis in the very first year.
The recent Tax Reform Bill modified bonus depreciation under Code Section 168(k) to allow 100% expensing for property placed in service. By increasing bonus depreciation to 100 percent, the new tax bill essentially allows eligible entities to deduct the entire allowable tax basis of the system in the first year of operation.
Learn more about MACRS depreciation.
The Illinois Shines sRECs Program remains a premier driver for ROI. By participating, your business can recover 30-35% of the original solar system cost with cash payments upfront or over 7 years, depending on system size, from the Illinois Power Agency. (Not available with PPA). Solar Renewable Energy Credits are based on the production of your solar PV system.
Net metering ensures you receive credit on your utility bill for any excess energy your system sends back to the grid.
In Illinois: New projects receive credits for the supply portion of their electric bill, which carry forward to offset future usage.
In Missouri: Many utilities continue to offer 1:1 retail credits for systems up to 100 kW, providing an immediate and powerful reduction in monthly overhead.
For businesses located in Ameren Illinois or ComEd territories, additional cash rebates are available to lower your upfront investment.
Smart Inverter Rebate: A one-time payment for installing grid-smart technology. Small businesses receive $300/kW (DC) smart inverter rebate and large commercial, nonprofit, and industrial solar systems receive $250/kW (DC).
Battery Storage Rebate: Secure your facility against outages and hedge against peak-demand pricing while earning an upfront $250 per kWh rebate.
Solar is a low-risk investment with a powerful ROI. To visualize how these incentives work together, we use custom modeling to track your net cash flow over time. Below are examples for an Illinois and Missouri business.
Based on example system with production of 240,000 kWh the first year and 3% kWh rate increase annually.
Based on example system with production of 474,000 kWh the first year and 3% kWh rate increase annually.
We protect your financial projections with a multi-layered security net to ensure your system performs for its 25+ year lifespan:
We help you choose a path that fits your organization’s balance sheet.
Clean Energy Credit Union offers loans ranging from $50,000 to $1.5 million for terms of 10, 12 or 15 years. Lesser loans may be considered on a case by case basis.
Third party investors have a strong interest in solar. With the available federal tax incentives and SRECs, a third party investment partner will pay to install and own the solar system on your property. Through a “power purchase agreement” you buy only the kilowatt hours the system produces.
Rural small businesses and agricultural producers across Illinois may apply for competitive grants that provide a “bonus” offset to project costs. While grants are competitive, StraightUp Solar can help connect you to resources for the application process.
Clean Energy Credit Union offers loans ranging from $50,000 to $1.5 million for terms of 10, 12 or 15 years. Lesser loans may be considered on a case by case basis.
Property Assessed Clean Energy (PACE) is a specialized financing mechanism that allows Missouri commercial property owners to fund 100% of solar project costs with no upfront capital. Unlike a traditional bank loan, the financing is structured as a voluntary special tax assessment tied directly to the property rather than the business owner. Repayment is made through an annual line item on the property tax bill for terms up to 20 years, often allowing projects to remain cash-flow positive from Year 1.
What happens when the property is sold? Because the obligation is attached to the property, the assessment and its energy-saving benefits automatically transfer to the next owner upon sale. This structure provides a unique added value for multi-tenant buildings, as it allows for the equitable sharing of costs and savings with current tenants. This enables real estate investors and business owners to upgrade their building’s value and protect against rising utility rates without impacting their primary credit lines.
Through this State Treasurer’s program, participating banks and credit unions offer 2-3% interest loans to both individuals and businesses. This program has been infrequently used for solar electric projects due to certain limitations, but is well-funded and worth consideration.
If you are a rural small business or agribusiness in Missouri, you may consider applying for competitive grants that help offset your solar project costs. StraightUp Solar can help connect you to resources to help with the application process.
Goal: Stabilize rising operational expenses for a growing craft brewery while locking in long-term energy costs.
Strategy: Layered the 30% Federal Investment Tax Credit with Illinois Shines (SRECs) to maximize the project’s net value.
Impact: 96% Energy Offset, $3,800 Estimated Year 1 Savings, $175,000+ Projected Lifetime Electricity Savings (25 years).
Bottom Line: This investment secures predictable energy rates, allowing capital to be redirected toward their taproom experience and regional expansion.
*All scenarios are unique, your experience may differ.
Goal: Lower operational overhead and increase property value for a historic mixed-use restaurant and office space.
Strategy: Optimized ROI by stacking benefits and incentives, including 30% Federal Tax Credit and MACRS Depreciation.
Impact: 74% incentive savings off total costs, 6.7 year payback period, estimated $434,000 energy bill savings over 30-years.
Bottom Line: With a Levelized Cost of Energy (LCOE) of just $0.014 per kWh, this 99 kW rooftop array provides tenants with price stability far below traditional utility rates.
*All scenarios are unique, your experience may differ.
Take our handy 2-minute assessment to find out if your business or organization is a good fit for solar. Everyone’s situation is different, and we appreciate learning about your unique interest in solar. One of our solar specialists will reach out to you about your project to determine if it is a good fit for solar.
*Disclaimer: We are not tax professionals, we are solar experts. Please consult with your tax advisor to see how the Federal Investment Tax Credit can work best for you.
Learn the top 3 solar battery incentives for homeowners & businesses in 2026, including Illinois rebates & Tesla Next Million Powerwall Rebate.
New “Big Beautiful Bill” changes the federal commercial solar tax credit. Find out how your MO or IL business can secure the credit before it’s gone!
New “Big Beautiful Bill” changes the federal commercial solar tax credit. Find out how your MO or IL business can secure the credit before it’s gone!