For businesses, owners & developers
Commercial and multifamily solar, engineered and permitted end to end
From flat urban rooftops to mixed-use and nonprofit buildings, Quest handles engineering, permitting, utility interconnection and installation — including the rooftop and code requirements that stall other projects.
Why commercial solar with Quest
Lower operating costs
On-site generation offsets electricity purchases for common areas, offices, retail and light industrial space.
Flat-roof engineering
Ballasted arrays and elevated canopies are designed around bulkheads, mechanicals and fire-code access pathways.
Code and certificate support
For NYC projects, we plan rooftop solar requirements and certificate-of-occupancy sign-off from the start.
Financing options
Commercial solar financing is available through partners such as Sunstone Credit, subject to their approval.
How the process works
Site and bill review
Roof survey, structural considerations, electrical service and 12 months of utility bills.
Engineering and proposal
Array layout, structural and electrical engineering, production estimate and project schedule.
Permits and interconnection
Building and electrical permits, fire-department requirements and utility interconnection.
Installation and close-out
Installation, inspections, utility acceptance and the documentation your team, lender or tax advisor needs.
Properties this suits
- Multifamily and mixed-use buildings
- Office, retail and light-industrial buildings
- Nonprofits and houses of worship
- New construction needing rooftop solar for code compliance or a certificate of occupancy
Equipment and products
Solar equipment we commonly design with
- SolarEdge
- Enphase
- Tesla Powerwall
Battery systems we commonly design with
- Tesla Powerwall
- FranklinWH
Equipment selection depends on project design and availability. Brand names are trademarks of their respective owners and are shown as text; their mention does not imply endorsement, certification, exclusivity or current availability.
For businesses, building owners and nonprofits
Commercial solar federal incentives
Qualifying commercial solar and battery projects may be eligible for the federal Clean Electricity Investment Credit. The final value depends on project timing, ownership, labor requirements, location and tax position.
Quest prepares project documentation for your tax professional, but does not provide tax advice or guarantee eligibility.
Review the federal guideLocal programs, without the clutter
Explore incentives by state
Choose your state for a clear, location-specific guide. We confirm the current program and utility rules before including an incentive in your proposal.
Geographic service-area overview
Verified November 2026; programs and funding can change. Incentives, rebates and tax credits depend on your utility, location, income, equipment, project details and program funding at the time you apply. Quest Solar does not guarantee eligibility or amounts and does not provide tax advice; consult a qualified tax professional about tax credits.
Proof points
- 45 Wadsworth Terrace, Manhattan (NY 10040): 50 kW final as-built rooftop system; Con Edison final interconnection acceptance January 2024.
- Family-owned since 2018, with more than 20 years of contracting experience.
Where we install
Frequently asked questions
Are federal tax credits still available for commercial solar?
Commercial projects may still qualify for federal investment credits, subject to construction-start and placed-in-service deadlines, prevailing-wage and apprenticeship rules, and other requirements. Have a qualified tax professional review your project; we provide the documentation they need but never guarantee eligibility.
Can you help with an NYC certificate of occupancy?
Yes. We plan rooftop solar requirements into the project so they do not hold up sign-off at the end.
How big a system can my roof hold?
It depends on usable roof area after fire-code pathways and mechanicals, structure and electrical service. We determine this during the site survey.
Do you work with nonprofits?
Yes — nonprofits and houses of worship are among the building owners we work with. Incentive and financing options differ for tax-exempt organizations.
Ready to talk about commercial solar?
Tell us about your property. A Quest Solar specialist reviews every request and follows up with honest recommendations.