Commercial Solar for DMV Businesses in 2026: Act Before the July Deadline

Commercial Solar for DMV Businesses in 2026: The Clock Is Ticking

While the residential solar tax credit ended on January 1, 2026, commercial solar still qualifies for the 30% federal Investment Tax Credit (Section 48E) — but with a hard deadline approaching. For businesses in DC, Maryland, and Virginia, 2026 represents a shrinking but still powerful window to capture federal and state incentives.

The July 5, 2026 Deadline

Under the One Big Beautiful Bill Act (OBBBA) signed July 4, 2025, the commercial solar ITC phase-out works as follows:

Construction Start Date 30% ITC Available? Must Be Placed In Service By Before July 5, 2026 Yes December 31, 2030 July 5, 2026 or later Yes, but compressed December 31, 2027 After 2027 in-service deadline No Credit expires

What "begin construction" means:

• Systems under 1 MW (Small Solar): Meet the "5% Safe Harbor" rule — spend at least 5% of total project cost, then complete within 4 years
• Systems 1–1.5 MW: Same 5% rule, with optional Davis-Bacon wage requirements for the full 30%
• Systems over 1.5 MW: Must demonstrate "Physical Work of Significant Nature" and meet prevailing wage/apprenticeship requirements

The message is clear: begin construction before July 5, 2026 to lock in the most favorable terms with the longest completion runway.

100% Bonus Depreciation Is Back

The OBBBA reinstated 100% first-year bonus depreciation for commercial solar equipment purchased between January 2025 and the 2029 tax year. This is a major benefit that the original IRA phase-down had been reducing.

Here is how it works with the ITC:

1. Claim the 30% ITC on total system cost
2. Reduce depreciable basis by half the ITC amount (15%)
3. Apply 100% bonus depreciation to the remaining 85% of cost — all in Year 1

Example: 100 kW System at $200,000

Item Amount Total system cost $200,000 30% Federal ITC -$60,000 Depreciable basis (85% of cost) $170,000 100% bonus depreciation (Year 1) $170,000 deduction Tax value of depreciation (21% rate) -$35,700 Effective first-year cost ~$104,300

That is a 48% reduction in effective cost in Year 1 — before you count a single dollar of energy savings or SREC income.

Important: Foreign Entity Restrictions

Beginning January 1, 2026, projects cannot claim the 48E credit if they use components from "Foreign Entities of Concern" (primarily Chinese manufacturers). This affects:

• Solar cells and modules
• Battery storage components
• Critical minerals

Aduu Solar works with qualifying domestic and allied-nation suppliers to ensure your project meets these requirements and preserves full credit eligibility.

State Incentives Stack on Top

Maryland

• Certified SRECs (Brighter Tomorrow Act): ~$70 per SREC for qualifying rooftop and canopy systems. A 100 kW system generating ~130 MWh/year earns roughly $9,100 annually.
• Standard SRECs: ~$55 per SREC for other qualifying systems.
• Property Tax Exemption: 100% — the solar equipment added to your commercial property is not taxed.
• Sales Tax Exemption: 6% waived on all solar equipment and installation labor.

Washington DC

• SRECs at ~$400–$415 each: DC has the highest SREC values in the country. A 100 kW system can generate $52,000+ in annual SREC income. This alone can pay back system costs within 3–4 years.
• Property Tax Exemption: Solar equipment value excluded from commercial property assessments.
• 100% Renewable by 2032 mandate: DC's aggressive target keeps SREC demand — and prices — elevated.

Virginia

• Property Tax Exemption: Up to 80% of solar equipment value exempt.
• Net Metering: Available for commercial systems up to 1 MW.

Real ROI: A Maryland Case Study

Scenario: 100 kW commercial rooftop system in Maryland

Item Amount Total system cost $200,000 Federal ITC (30%) -$60,000 Bonus depreciation tax savings (Year 1) -$35,700 Net cost after Year 1 tax benefits $104,300 Annual energy savings (at $0.14/kWh) $18,200 Annual SREC income (Certified, ~$70) $9,100 Total annual return $27,300 Payback period ~3.8 years

After payback, the system generates $27,300+ annually in combined savings and income for 20+ additional years. That is over $500,000 in lifetime value from a $200,000 investment.

Benefits Beyond the Balance Sheet

1. Locked-in energy costs — Shield against utility rate increases averaging 3–5% annually for 25+ years
2. Brand reputation — Visible sustainability commitment resonates with customers and employees
3. Tenant attraction — Solar-equipped commercial buildings command 3–4% higher rents
4. ESG compliance — Meet growing Environmental, Social, and Governance reporting requirements
5. Reduced operating expenses — Lower overhead directly improves margins

The Bottom Line for Business Owners

The commercial solar window is narrowing but still wide open. The combination of 30% ITC + 100% bonus depreciation + state SRECs creates a financial case that may not be repeated. But the July 5, 2026 construction-start deadline is firm.

Start now:

• Engineering and permitting take 6–12 weeks
• Equipment procurement and delivery add 4–8 weeks
• Waiting until summer risks missing the deadline

Aduu Solar has completed commercial installations from 50 kW to 800 kW across the DMV. Our commercial team handles energy audits, system design, permitting, installation, and SREC registration.

Request a free commercial energy assessment or call (240) 429-1120.

Financial figures are estimates for illustrative purposes. Actual savings depend on system size, energy consumption, utility rates, tax situation, and incentive availability. Consult a tax professional for specific advice. SREC prices are market-driven and subject to change.