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Solar Services

ONTILITY Powered by Smith for All Your Solar Needs

ONTILITY specializes in buying and selling a full array of solar products and providing our customers with end-to-end customizable solar solutions. Our global footprint and extensive expertise in solar technology help ONTILITY to navigate this fast-evolving marketplace and deliver best-in-class solar products, support and solutions.

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How We Help

ONTILITY is committed to the solar market and solar-industry development

Trust ONTILITY to help keep you moving with comprehensive solar product and service partnership.

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Solar Project Consulting

ONTILITY’s consultants support projects of any size and scope with expert knowledge. Our team can help optimize your project at any phase, including site surveys, plan reviews, project planning, on-site training, inspections, commissioning, and more.

Solar Design and Engineering

ONTILITY offers expert design and engineering services for residential, commercial, and utility-scale solar energy systems. We work with architects, builders, installers, integrators, and project developers to produce top-quality designs for PV systems of all sizes and in all configurations.


Supported by Smith’s global operations team and industry-leading warehouse and laboratory resources, we’re ready to deliver the inventory management, kitting, and shipping solutions you’re looking for.

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Customer Service

Each order you place with us matters. That’s why ONTILITY strives to provide unmatched customer service that is dedicated and shaped to your needs. Our customer-support and quality teams deliver accurate orders that meet your exact specs and timeline so that your projects go smoothly.


With 17 global offices and 3 regional distribution hubs, Smith is at home all over the world, offering localized support to our customers.
World Headquarters

N.F. Smith & Associates, L.P.
5306 Hollister Street
Houston, TX, US 77040

8820 Clay Road, Suite 200
Houston, TX, US 77080

10350 Clay Road, Suite 200
Houston, TX, US 77041

+1 713.430.3000 |
European Headquarters

Smith & Associates Europe B.V.
Alpha Tower, 22nd Floor
De Entree 45
Amsterdam, NL, 1101 BH

Nijverheidsweg 2
Haarlem, NL, 2031 CP

+31 23.750.4000 |
Hong Kong
Asian Headquarters

Smith & Associates Far East Limited
Suites 3607 -11, Tower Two, Times Square
1 Matheson Street
Causeway Bay, HK

1F, Continental Electric Industrial Building
17 Wang Chiu Road
Kowloon Bay, HK

+852 2.854.3232 |

Certifications and Affiliations


ISO 14001

Smith’s environmental management system promotes an environmentally conscious workplace and continuous compliance with applicable regulations.



Smith’s adherence to specified e-waste practices underscores our deep commitment to supporting a healthy and responsible global recycling stream.



Smith conforms to the EN 50625 standards for responsible processing and disposing of electronic waste.


SolarPower Europe

SolarPower Europe membership provides support to ONTILITY Powered by Smith through solar-industry news, market analysis, and networking opportunities.



ONTILITY Powered by Smith’s solar design team utilizes the expertise of NABCEP Board Certified engineers to ensure the mechanical and electrical design components of our PV systems are configured to the highest standards.

ONTILITY Leadership

Our global strategy for solar services includes performance optimization across multi-site operations. We’ve added members to the team in major regions around the world, expanding our footprint to bring more quality service to our customers.

Alexandra Harrison

EVP Sales & Procurement

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