179D as engineering documentation, not a tax product

EPAct 179D (Section 179D) can open a conversation with facility sponsors, plant engineers, and design partners, but it is not a substitute for a real energy or mechanical basis. Eligibility requires records and PE certification engineering that hold up under scrutiny.

SIEC supports documentation pathways only where the facility and project history support them. We do not prepare tax returns or promise deduction amounts. Your CPA applies the tax deduction on the return.

When incentives are in scope, say so early and keep CPA or tax counsel in the loop. Engineering remains the product. Incentives are secondary—start with the free eligibility checklist when you need a go/no-go screen.