I will design solar pv system with single line diagram and cable sizing


About this gig
Are you looking for a professional solar PV system design that is accurate, code-compliant, and ready for installation? I am a civil and structural engineer with 10 years of experience, and I will design your solar PV system with a clear single line diagram (SLD) and complete DC and AC cable sizing calculations.
WHAT YOU GET:
- Solar PV system design (residential, commercial, on-grid, off-grid, hybrid)
- Single line diagram (SLD) in AutoCAD
- DC cable sizing (string, array, combiner box)
- AC cable sizing (inverter, panel, grid connection)
- Voltage drop and current calculations
- Protection sizing: fuses, breakers, SPDs, isolators
- Solar panel layout and string design
- PDF and DWG files
WHY CHOOSE ME:
- IEC and NEC standards
- Fast delivery and quick replies
- Free minor revisions
- Clear PV drawings for installers, contractors, and permit approval
Message me before ordering so we can confirm your project details. Order now and get your solar design done right!
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Get to know Brian
ENG Brian
- FromUnited States
- Member sinceSep 2026
Languages
English, German, French
FAQ
What information do you need to start the design?
Please send your system size (kW), panel and inverter models, cable lengths, and the local code or utility requirements. Site photos or a rough sketch also help. The more details you share, the faster and more accurate the design will be.
Which standards do you follow for the design?
I design according to IEC and NEC standards, depending on your country and project needs. Please tell me which code or utility guideline applies to you before ordering, so I can follow it in your drawings and calculations.
What file formats will I receive?
You will receive your single line diagram and drawings in editable AutoCAD (DWG) and PDF formats. Cable sizing calculations are delivered as a PDF or Excel sheet, so your installer or contractor can review and use them easily.
Can you design on-grid, off-grid, and hybrid systems?
Yes. I design residential, commercial, on-grid, off-grid, and hybrid solar PV systems, including battery-based setups. Send me your system type and load details, and I will confirm the best approach before starting the work.
Do you offer revisions, and is the design ready for permit approval?
Minor revisions are included, so your design is accurate and clear. My drawings are prepared for permit submission, but some regions require a locally licensed engineer's stamp. Please check your local authority's requirements.
