Files written by the engineer who uses them
Najdeah publishes the design guides, project sets and financial models behind real solar work, so the next engineer does not start from a blank sheet.
What Najdeah is
Najdeah is an Arabic platform for renewable energy, built to turn sustainable energy from an idea into action. We provide the tools, the projects and the knowledge that let engineers and developers design a plant, price it and hand it over with confidence, instead of each of them starting from a blank page and rebuilding what has already been delivered dozens of times.
We work along three lines: a shop of editable engineering files, teaching material that explains project economics and risk, and consulting on project development and commercial structuring. One thread runs through all of it: everything we publish came out of a real project, not out of a textbook.
Drawings, calculators and financial models in their source formats, bought once and yours to keep forever.
More than 21,000 engineers and trainees from over 30 countries have learned through Najdeah teaching material.
More than 100 renewable energy projects that the Najdeah side has helped develop, design or deliver.
One engineer, one catalogue, no filler
Najdeah is the publishing side of the work of Eng. Nooraldin Najdeah, CEM®, CEA™, a renewable energy and business development professional with more than nine years across Saudi Arabia, the GCC and the wider MENA region.
His work sits where engineering, commercial structuring and finance meet: originating bankable projects, structuring commercial models, negotiating contracts and closing deals in utility scale and C&I renewable energy — and it is where every file in this shop comes from.
The technical grounding behind it is a Bachelor’s degree in Mechanical Engineering plus the CEM® and CEA™ certifications, which is what makes it possible to de-risk a project early, sanity check CAPEX and OPEX, validate energy yield assumptions and challenge a financial model before anyone commits capital.
Beyond the consulting work, he founded an education platform that has trained more than 20,000 professionals globally on project finance, risk and energy economics. Najdeah is the shelf where the underlying files finally live.
- BSc Mechanical Engineering, with honours
- Certified Energy Manager CEM®, AEE
- Certified Energy Auditor CEA™, AEE
- 9+ years across Saudi Arabia, Qatar and Jordan
- 100+ renewable energy projects
- 21,000+ trainees from 30+ countries

What We Actually Stand For
The drawings, calculations and reports come out of plants that were designed, financed and commissioned - not out of a template pack.
AutoCAD, Excel with the formulas intact, Word and PVsyst. Nothing is flattened into a locked PDF, because a file you cannot edit is a file you cannot use.
The design work follows IEC and NEC, and the guide covers the Saudi code and the requirements that come up repeatedly across the Middle East.
How A File Gets Published
Nothing is written for the shop first. A file only becomes a product after it has already done its work on a project.
Client names, sites and commercial terms come out. The engineering, the structure and the formulas stay in.
Sizing, protection and documentation are re-checked against IEC and NEC before the file is listed.
Packaged with the source files, priced once, and delivered to your account the moment the payment clears.
What Engineers Say
Great course. Very easy to follow and understand. I learned a lot through this course. No matter you are a beginner or experienced, this course will teach you everything you want to learn regarding solar energy system design and installation.
The content is well organised and the explanation is clear and to the point. It covers the practical side of the design, not only the theory, which is what I was looking for.
Very useful material for anyone working on solar plant design. The examples are taken from real projects and that makes a big difference.
Save up to 50%
4 of the 7 files are reduced right now, including the complete 3 MW package.
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Send the scope of your project and you will get a straight answer on which file covers it, within 24 to 48 hours.
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