Updated September 25, 2026
The best time to build solar for your business is while you still have room to plan the project, qualify for available incentives, and start capturing the savings your facility can support.
For businesses considering commercial solar installation in late 2026, there is a strong case for getting started now. Federal tax rules have shortened the window for many new projects. Electricity costs are putting pressure on operating budgets. And the price of a future installation can change as equipment, manufacturing, and transportation costs move.
If you are asking, “When is the best time to install solar panels for my business?” start with a more practical question: what could waiting change about this project’s cost, incentives, and savings?
Commercial solar tax credit expiration makes the best timelines shorter
For a new business owned solar project whose construction begins after July 4, 2026, current federal law generally requires the system to be placed in service by December 31, 2027 to qualify for the Section 48E investment tax credit. Federal law, Section 70513
For businesses starting now, this is a completion deadline. It is not a dependable schedule of smaller credits that remain available for several more years.
“Placed in service” generally means the system is ready and available to produce electricity. Signing a contract, making a deposit, or having equipment delivered does not by itself satisfy that standard. Federal placed-in-service regulation
That makes the project schedule part of the financial decision. Site review, engineering, procurement, permitting, utility coordination, installation, and applicable approvals all need a realistic place in the plan. Starting the conversation earlier gives your team more room to address issues before the deadline becomes the controlling factor.
The commercial solar tax credit also depends on eligibility. Section 48E has a 6% base rate; eligible projects can qualify for 30% when the applicable labor requirements or an exception are satisfied. The rate applies to qualified investment, which may differ from the total project invoice. Credit rates, increased-rate requirements
Scenario: a delay changes the incentive calculation
Imagine a new project with $500,000 of qualified investment that meets all requirements for a 30% credit. Its modeled federal credit would be $150,000.
If that same project begins construction after July 4, 2026 and is placed in service in 2028, it would not qualify for that solar credit under current law. A hoped for equipment discount needs to be weighed against a potentially much larger change in incentive value.
Rising business electricity costs strengthen the case for earlier savings
Waiting to build also means waiting to produce electricity at your property.
In its September 2026 outlook, the U.S. Energy Information Administration forecasts average commercial electricity prices of 13.99 cents per kilowatt-hour in 2026, compared with 13.41 cents in 2025—an increase of approximately 4.3%. It forecasts a further increase to 14.15 cents in 2027. EIA September 2026 energy-price table
Michigan businesses face several potential sources of utility cost pressure. The Michigan Public Service Commission identifies factors including inflation, equipment and labor costs, grid investment, capacity costs, and fuel-price volatility. MPSC explanation of rising utility rates
Commercial solar can reduce the electricity your business needs to purchase when generation serves onsite demand. The financial value depends on your operating schedule, tariff, and export arrangement; fixed charges and some demand charges may remain. National laboratory commercial solar financial-model guidance
Scenario: waiting for a discount postpones a year of benefits
Suppose a specific model estimates $40,000 in annual electricity savings after ongoing solar operating expenses, before financing and taxes. If an otherwise feasible project could begin operating a full year earlier, delaying it postpones that year’s modeled benefit.
Now suppose the owner hopes a $500,000 installation will become 5% cheaper. That would reduce its price by $25,000. The business should compare that possible discount with the $40,000 of modeled benefit postponed and with any change in credit eligibility.
Higher oil prices can put pressure on shipping and delivery costs
Solar equipment has a supply chain. Panels, inverters, mounting systems, and other materials must reach the installation site. Fuel costs can affect that movement.
EIA reported that Crude Oil averaged over $100 per barrel in September 2026, up $17+ from July, alongside tight diesel market conditions. That creates a reason to pay attention to transportation costs when evaluating a future equipment quote. While the forecast is that fuel goes down, with uncertainty in shipping in mind it may be best to negotiate a contract and buy equipment to prevent large increases in price which leads to a longer payback time or worse, missing the deadline. EIA September 2026 outlook
For a business buyer, the practical questions are straightforward: how long is the quote valid, is freight included, and which costs can change before equipment is ordered or delivered?
Start planning before the season you want to build
The best season for construction depends on your building, location, and operations. The best time to begin evaluation is early enough to work through those constraints.
For a warehouse, that may mean reviewing roof condition and scheduling around shipping activity. For a manufacturer, it may mean coordinating electrical work with a planned maintenance shutdown. If the roof needs replacement, bring that work into the solar plan from the beginning.
Starting assessment now does not require rushing an unsuitable installation. It gives your team time to determine what is feasible and whether an earlier operating date is achievable.
Put a timeline behind your solar decision
If your property and financial plan are a good fit, beginning sooner can give your business more time to pursue available commercial solar incentives, bring electricity savings forward, and manage procurement uncertainty.
SunMatic works with manufacturing facilities and warehouses and distribution centers. Bring your recent utility bills, facility address, operating schedule, and available roof information to the conversation.
Contact SunMatic to discuss your commercial solar project and timeline. Find out what your facility needs, what the current economics look like, and what an achievable path to installation could involve.