ONTILITY Powered by Smith for All Your Solar Needs

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

Headquartered in Houston, TX, and with offices in Asia and Europe, ONTILITY is a division of Smith, the leading global independent distributor of electronic components.

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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Residential    |    Commercial    |    Utility    |    Competitive Pricing    |    Stocked Equipment    |    Global Reach

Solar Modules

ONTILITY offers a broad range of solar PV modules –from new, full-warranty, high-wattage, tier-one modules to low-priced, reduced-warranty, and used modules. We can provide all quantities, from pallets and containers to multi-megawatt.


ONTILITY carries inverter solutions for all sizes of project – many of them in stock and ready to ship the next day. We offer residential solutions, including microinverters, off-grid, string, and optimizers. Commercial and utility options cover both centrals and large-scale string solutions.

Racking and Mounting

ONTILITY offers mounting, racking, and structural products, plus solutions for every type of solar-mounting configuration and application. We feature a comprehensive, in-house inventory of mounting and racking pieces, parts, and components. These range from small residential fixed-mount applications and custom-designed and fabricated car structures to signage and foam-based solutions and large-scale concentrated ground-mount trackers.

Balance of System (BOS) and Monitoring

We offer an extensive list of balance of system (BOS) components from the industry’s leading manufacturers. BOS components include, but are not limited to: batteries, charge controllers, monitoring devices, cables, connectors, over-current protection, disconnects, combiner boxes, grounding hardware, enclosures, stainless fastening hardware, lightning protection, and adhesives. ONTILITY knows that one missing BOS component can delay a renewable project install for weeks and can be extremely costly to the project’s overall profitability.

Energy Storage

We offer a wide variety of the latest energy storage solutions on the market. We support PV projects ranging from single panel units to multiple megawatt arrays. Regardless if your system is off-grid or grid-tied, we can design solutions and offer products to support your needs.

Solar Attic Fans

ONTILITY offers solar attic fans from multiple reputable manufacturers in the industry. Solar attic fans are available both individually for direct buyers and homeowners and in bulk for installers and home builders who need larger quantities.

Solar Excess-Inventory Solutions

ONTILITY purchases excess inventory from end users, developers, contractors, manufacturers, and brokers. Whether a project was cancelled or downsized or if you are simply aiming to liquidate inventory and recoup project funds, we can purchase the product while helping you secure the maximum return on your investment.


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Sell Your Excess Inventory

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Design & 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.

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.


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.

Decommissioning Services

We have the resources and knowledge to help you manage solar decommissioning projects of any scope or size. ONTILITY gives you access to the deep solar-market expertise needed to determine your best disposition strategy, including certified recycling solutions you can trust.

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Global Locations



N.F. Smith & Associates, L.P.

5306 Hollister Street
Houston, TX 77040 USA

+1 281.854.1400 | +1 877.858.7479

8820 Clay Road, Suite 200
Houston, TX 77080 USA


Europe Office

Smith & Associates Europe B.V.

Alpha Tower
De Entree 45, 22nd Floor
1101 BH Amsterdam
The Netherlands

+31 23.750.4066

Nijverheidsweg 2
2031 CP Haarlem
The Netherlands


Asia Office

Smith & Associates Far East Limited

Suites 2607-10, Tower Two
Times Square, 1 Matheson Street
Causeway Bay, Hong Kong

+886 2.2728.9978

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

Customer Service Tailored to You

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.

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

If at any time you are not satisfied with your purchase, don’t hesitate to contact us – we’ll make it right.

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Alexandra Harrison

EVP Sales & Procurement

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Alexandra Harrison

EVP Sales & Procurement

“Never settle – always push for more.” That’s how Alexandra Harrison says she approaches her role as ONTILITY’s Executive Vice President of Sales and Procurement.

Having previously executed and managed a new business development that led to one of the company’s largest gross profit deals, she is currently focused on expanding her team globally.

“This global strategy includes performance optimization across multi-site operations,” Alexandra said. “We’ve added members to the team in major regions around the world, expanding our footprint to bring more quality service to our customers.”

A true leader, Alexandra puts an emphasis on developing and motivating her teams around the world and encouraging collaboration between the groups.

When she’s not in the office, Alexandra values spending quality time with her husband and three children.