CET — Approved solar installer

Go solar

Turnkey solar installations for homes, industry and agriculture. Plus all industrial, marine and oil & gas electrical installation work.

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CET technician checking an inverter
Free quote

From design to commissioning, a single point of contact.

Why CET

Turnkey solar, and all industrial electrical work

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Approved company

Approved by the competent authorities for photovoltaic work.

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Qualified teams

Experienced electricians and high-quality equipment on every project.

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Fast response

After-sales service and repairs throughout Tunisia.

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About us

Electrical and solar, from design to after-sales service

CET — Chalghaf Electrical Technology is a Sfax-based company specialising in industrial, marine and oil & gas electrical installation work, as well as solar photovoltaics.

Approved for photovoltaic work, it handles the entire project, from design to after-sales service.

Learn more
CET technicians installing rooftop modules

Electrical know-how serving industry.


0
Years of experience
4
Areas of expertise
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Years of equipment warranty

01

Our mission

To deliver safe, durable electrical installations, sized precisely to real needs, on every project entrusted to us.

02

Our vision

To be our clients’ single point of contact, from the first site survey to after-sales service.

Our commitments

Satisfied, or your money back

Your satisfaction is our priority, and we put it in writing.

Approved company

Approved by the competent authorities for photovoltaic work.

High-quality equipment

Recognised brands, chosen to last rather than to show the lowest price.

Fast response

Our teams travel throughout Tunisia, for both projects and repairs.

Our equipment

The best-ranked brands, checked every year

Equipment determines how long an installation lasts. Every year, we check our selection against independent global market rankings.

Solar panels

Our modules are chosen from the manufacturers at the top of the annual ranking of the most efficient panels, based on conversion efficiency.

See the panel ranking

Inverters

Reliability, after-sales service, monitoring and warranty: our inverters come from the best-rated brands in the annual ranking of grid-connected inverters.

See the inverter ranking

Structures and protection

The same standards apply to structures, cables, protection boxes and batteries: only recognised equipment, guaranteed and supported by its manufacturer.

Rankings published and updated every year by Clean Energy Reviews, an independent website specialising in solar energy.

Our services

Solar for every use

Sales, installation and maintenance: we take care of your entire project.

Villa equipped with solar panels

Residential solar

Turnkey installation for houses and villas. Up to 70% savings on your electricity bill.

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Solar plant on an industrial rooftop

Industrial solar

Rooftop or ground-mounted plants for factories, workshops, shops and commercial buildings, sized on your actual consumption.

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Solar on a farm

Agricultural solar

Farms and estates: self-consumption, solar pumping and independence for off-grid sites.

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Our projects

Our projects, in pictures soon

Our strengths

What solar changes for you

A home that produces its own electricity

An approved company

CET is approved by the competent authorities for photovoltaic work: a guarantee of a compliant installation accepted for grid connection.

Self-consumption on an industrial site

Safety first

Industrial sites, ships, oil installations: our teams follow site procedures, with lockout and equipment suited to the hazardous-area classification.

CET design office

Fast response

An electrical failure costs money by the hour. Our teams travel quickly throughout Tunisia, and after-sales service doesn’t stop when the job is done.

They trust us

What our clients say

“From design to grid connection, everything was taken care of. The team put together the subsidy application and commissioning went smoothly, with no unpleasant surprises.”

CET client 1
Mohamed Ben Salah
Manager, Sfax

“Fast, clean installation and a very professional team. Our electricity bill dropped significantly from the very first months.”

CET client 2
Sonia Trabelsi
Site manager, Sfax

“Investing in solar was the right decision for our workshop. The proposed sizing truly matched our actual consumption.”

CET client 3
Karim Jelassi
Shipyard, Sfax

“Work on an oil site: procedures followed, work permits in order, no deviations.”

CET client 4
Amine Kammoun
Oil site, southern Tunisia

“The solar installation covers a good share of our daytime consumption. The bill went down from the very first quarter.”

CET client 5
Hédi Maalej
Farmer, Sfax

“From the first meeting to the annual maintenance, everything is spot on. The equipment installed is high quality and production matches the study.”

CET client 6
Nadia Bouzid
Hospitality, Sfax
The CET team

Answers to your questions about solar

FAQ

Frequently asked questions

CET carries out industrial, marine and oil & gas electrical installations, as well as solar photovoltaic installations, both new and renovation.

Yes. We prepare, submit and follow the entire application with STEG until approval, then coordinate the grid connection.

Depending on your consumption profile, your electricity bill can drop by up to 70%. The feasibility study quantifies this saving before any commitment.

Yes. Our head office is in Sfax, but our teams travel throughout Tunisia, for both projects and repairs.

Maintenance visits, protection checks, module cleaning, diagnostics and restarting. Our commitment doesn’t end when the job is finished.

Ready to go solar?

Let’s talk. We come to your site, carry out the feasibility study and give you a detailed quote.

Request a free quote
Our news

Tips and news from CET

Feasibility study at a private home
  • 12 January 2026
  • Study

Why the feasibility study changes everything

A quote without a site visit is a shot in the dark. Surveying the existing setup and analysing actual consumption and access constraints determine the capacity to install — and avoid the two classic mistakes: oversizing or undersizing.

Preparing the STEG application with the client
  • 26 January 2026
  • STEG

The STEG application, step by step

Preparing the application, submitting it, following its review and then coordinating the grid connection: so many steps that put project owners off. Here is what a complete application contains and the timeframes to expect.

Inspecting an industrial electrical cabinet
  • 9 February 2026
  • Industrial

Electrical cabinet: the warning signs

Overheating, repeated tripping, illegible labelling, undersized protection devices. Reviewing these points once a year prevents production shutdowns, which cost far more than the inspection.