Average Client Rating
Projects Delivered
Countries Served
Client Retention Rate
Verified feedback from homeowners, contractors, distributors and industrial clients we supply worldwide.
★★★★★
The solar panels and lithium batteries we sourced from ONSS LTD have performed above rated output for two consecutive years. Documentation and certification were complete and accurate.
Procurement Manager, EcoVolt Portugal
★★★★★
Our container shipment arrived ahead of schedule with zero damage. Packaging and logistics coordination were handled professionally from start to finish.
Managing Director, BrightPower Kenya
★★★★★
Their engineers helped us size an ESS for a hospital backup system. The design was thorough and the commissioning support was hands-on.
Facilities Head, Meridian Hospital
★★★★★
We compared five suppliers. ONSS LTD offered the best balance of tier-one components, warranty terms and pricing for our commercial rooftop project.
Director, Northline Commercial Group
★★★★★
The solar water pumping system now irrigates 40 hectares with no diesel cost. Installation guidance was clear and the system has been maintenance-free.
Owner, Nile Valley Agrifarms
★★★★★
ONSS LTD supplied and supported the deployment of 24 EV chargers across our sites. Smooth project management throughout.
Fleet Manager, Horizon Logistics
Our client base spans five core sectors in 38 countries, each supported by tailored system design and dedicated technical assistance.
Homeowners who cut electricity bills with rooftop solar and battery storage.
Offices, retail and hospitality clients reducing operating costs at scale.
Factories and plants running high-capacity solar and ESS installations.
Farms powered by solar water pumping and off-grid energy systems.
Public infrastructure and utility-scale renewable energy projects.
A 98% retention rate is built on consistency — in product quality, in delivery, and in the support that follows every order.
Tier-one panels, inverters and batteries with full international certification.
Direct manufacturer relationships that secure quality and competitive pricing.
Engineers available for sizing, design review, commissioning and troubleshooting.
Clear, honoured warranty terms backed by responsive claim handling.
Four straightforward stages from first conversation to long-term performance.
We listen to your energy goals, review load data and site conditions, and define the right scope.
Watch project walkthroughs and client interviews from installations we have delivered around the world.
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