A working library on commercial economics, incentive structures, and the operating systems behind a scalable commercial business. Grounded in active projects, not theory.
Insights covers what actually moves commercial solar deals from interesting to bankable. Each piece is written for owners, CFOs, and installers evaluating real decisions on real timelines.
A discovery call calibrates anything you read here to your pipeline, market, and project timeline.
Book a 30-minute discovery callA federal court restored the 5 percent safe harbor on June 6, 2026, three weeks before the OBBBA deadline that ends new commercial solar tax credits. The economics, the risks, and what an owner should authorize in the next 21 days.
Most commercial solar projects above $1M require a tax equity partner to absorb the ITC. The partnership flip, sale-leaseback, and inverted lease each allocate credits, depreciation, and cash distributions differently. Selecting the wrong structure delays closing. This piece covers yield targets, flip mechanics, and when to engage a tax equity investor relative to PPA execution.
The manufactured product component threshold increased to 50 percent for projects beginning construction in 2026, with a separate 100 percent requirement for structural steel and iron. Solar and storage sides of combined projects must qualify independently under Section 48E. The IRS elective safe harbor reduces documentation burden but comes with conditions developers frequently miss.
The Energy Communities bonus adds 10 percentage points to the base ITC with no application window and no capacity cap. Eligibility runs across three pathways: coal closure, statistical area fossil fuel employment, and brownfield sites. IRS Notice 2025-31 updated the qualifying lists and expanded coverage. For ITC projects, eligibility is tested on the placed-in-service date, not at construction start.
C-PACE sits senior to the mortgage and subordinate only to property taxes, which means the existing lender must provide written consent before the assessment can close. Typical capital stack architecture places C-PACE at 15 to 25 percent of project cost, displacing equity and reducing personal guaranty exposure on the senior loan. Deals that skip early lender engagement are the ones that miss closing timelines.
The Low-Income Communities bonus is the only IRA adder that requires a competitive allocation award before the credit can be claimed. The 2026 application window opened February 2 and runs through August 7, but the first 30 days function as a simultaneous submission window. Applications filed after March 3 are reviewed on a rolling basis only after prior-window demand is cleared. Demand has exceeded available capacity in each program year to date.
The $280 million Residential Solar and Storage Equity budget launched in June 2025 at $1,100 per kWh for qualifying low-income installations. The commercial Large-Scale Storage budget operates separately, currently at $250 per kWh with step-down rates above 2 MWh, and has been under sustained budget pressure since 2022. Commercial developers should verify step funding availability with the applicable utility program administrator before committing SGIP incentives to a financial model.
Field notes on tax credits, incentive structures, and project economics. Three to four emails a year, delivered to commercial owners and installers actively evaluating solar.