Innovative Solar Engineering Solutions for Everyone

Sleek modern solar panels under a vibrant blue sky with clouds, symbolizing clean energy.

About THE RAYVO

THE RAYVO is a local photovoltaic engineering and supervision firm that turns sunshine into reliable performance.

We design, supervise and hand over solar systems that lower energy bills and run dependably — from rooftop homes to utility-scale plants worldwide.

Our story

THE RAYVO was founded by Abderraouf HADJ DJILANI, a renewable-energy engineer with a Master’s degree in Renewable Energy (specializing in photovoltaic conversion). Combining technical design skills with hands-on field supervision, Abderraouf built THE RAYVO to close the gap between engineering studies and reliable real-world operation. We believe great solar projects start with precise design and finish with disciplined supervision.

What we do

At The Rayvo, we provide end-to-end photovoltaic engineering studies online, serving clients worldwide.

Feasibility & Site Studies

shading analysis, load review, and ROI estimates.

System Design & Sizing

electrical single-line diagrams, stringing, inverter selection and layout.

Performance Modeling

production estimates, yield forecasts and loss analysis.

Procurement Guidance

vendor & component advice to match budget and quality goals.

On-site Supervision & Commissioning

quality control during installation and final handover.

Maintenance Planning

simple, practical plans to keep production high over the years.

Why clients choose us

Engineer + On-site supervisor

you get the same expert from design to commissioning.

know-how

deep familiarity with regulations, documentation and suppliers.

Transparent, measurable results

we focus on predictable energy production and clear ROI.

Turnkey, practical approach

from study to handover — no surprises.

About the founder

Abderraouf HADJ DJIILANI — MSc Renewable Energy (Photovoltaic conversion). Founder of ecoHADJILANI in Algeria and THE RAYVO. Abderraouf has led PV site supervision missions and collaborated with international partners to deliver projects adapted to local conditions. Languages: Arabic, French, English.

Our values

Precision — Responsibility — Clear communication

THE RAYVO

Photovoltaic engineering & site supervision in Algeria. Design, supervision and turnkey services to maximize solar performance and savings.