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Commercial Solar System DesignI am preparing a commercial-scale solar installation of up to 50 kW and need a complete electrical design package that a permitting authority and my installation crew can work from without further modification. The scope covers three key areas: • Solar panel layout – optimized stringing, row spacing, and tilt to maximise yield on the available roof area. • Electrical wiring – conduit runs, cable sizing, protection devices, string combiner or homerun details, and a clean single-line diagram that meets the latest NEC/IEC requirements. • Inverter system – proper inverter selection, placement, and integration with the existing service panel, including grounding and monitoring points. Deliverables I expect: 1. CAD and PDF drawings for the array layout, single-line, and wiring schematics. 2. An equipment schedule / bill of materials. 3. Basic generation estimate (PVsyst, Helioscope or similar) to validate design assumptions. 4. A brief design report citing code references used. Files must be ready for submission to the local authority having jurisdiction and usable by field electricians. If you have recent commercial rooftop experience and can turn around an accurate, permit-ready set quickly, let’s get started.
Project ID: 40599036
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12 freelancers are bidding on average ₹7,958 INR for this job

Hi, I have experience in designing Circuits and can complete your project. I have expertise in the following: 1- Designing schematic and PCBA 2- Ordering the PCBA and getting boards manufactured. 3- Writing firmware for the PCBA to make sure everything works as expected. 4- I can also develop smartphone apps to communicate and control the hardware. If you wish we can discuss in chat. Thank you.
₹7,000 INR in 7 days
7.3
7.3

Having spent a significant part of my career focusing on industrial automation, with a particular emphasis on electrical engineering, I believe I've got the necessary skills for this project. In the field of electricity, I install and commission electrical panels, design electrical projects, and handle field applications for small enterprises. These experiences have honed my CAD and wiring skills, ensuring that my diagrammatic representations are precise, readable and approved by those having jurisdiction. Furthermore, my in-depth knowledge of industry codes will enable me to meet all the necessary regulatory requirements your project demands. In addition to my proficiency in electrical work, I am also well-versed in PV system design; specifically commercial rooftop installations. These ventures have required visualizing panel placements and stringing strategies—skills that will be directly applicable to your project's need for 'optimised stringing, row spacing, and tilt'. My designs are not only visually impactful but focus primarily on maximum energy yield from available roof space - this is a fact-based approach that your project requires.
₹12,000 INR in 7 days
5.4
5.4

Hi, I read your project requirements for utility-scale ground-mounted solar power plant design, and I am highly interested in supporting your team. With my background in engineering and design for MW-scale projects, I understand the complexities involved in taking a project from concept through to a construction-ready execution package. My experience covers the full lifecycle of solar PV engineering, including site layout optimization, electrical system design, and technical documentation. I am well-versed in industry-standard software like PVsyst and AutoCAD, ensuring that the designs are not only efficient in yield but also technically sound and compliant with international standards. Key highlights of my experience include:** . MW-Scale Utility Design:** I have successfully led the design for a **3.5 MW utility-scale ground-mounted solar power plant in Germany.** This project required adherence to strict European technical standards and precise execution-ready documentation. . End-to-End Delivery:** I am experienced in preparing comprehensive engineering packages, including Single Line Diagrams (SLD), OCPD sizing, cable schedules, and layout optimization to minimize losses and maximize ROI. . Technical Compliance: I prioritize safety, grid code compliance, and constructability in every design, ensuring a smooth transition from the office to the field. I am more than happy to share the relevant design packages or technical samples from my 3.5 MW project in Germany upon your request, so you can evaluate the quality and depth of my work. I would love to learn more about your current project’s specific constraints and requirements. Are you available for a brief chat to discuss how I can help bring this project to a successful completion? Best regards, Mahmoudreza A.
₹8,500 INR in 15 days
4.9
4.9

Hi, I can deliver a complete, permit-ready design package for your commercial solar system up to 50 kW, including optimized array layout, stringing, wiring, protection, inverter integration, grounding, CAD/PDF drawings, BOM, generation estimate, and code-referenced design report compliant with NEC/IEC and local AHJ requirements.
₹4,500 INR in 3 days
3.3
3.3

Hi, for a commercial solar system design, ensuring the electrical design package meets all permitting authority requirements is crucial. I'd start by reviewing your site layout and electrical load requirements to ensure compatibility with local codes and standards. Can you share the current site plans or any existing documentation?
₹7,000 INR in 7 days
0.0
0.0

IF YOU'RE NOT HAPPY, YOU DON'T PAY. I recently completed a commercial solar design project that resulted in a 20% increase in energy efficiency for the client’s installation. I understand the importance of a comprehensive electrical design package for your 50 kW solar installation. I will ensure that the solar panel layout is optimized for maximum yield, and I will provide a clean single-line diagram that adheres to the latest NEC/IEC standards. The deliverables will include CAD and PDF drawings, an equipment schedule, and a generation estimate to validate the design. I focus on good planning, clean and maintainable code, clear communication, on time delivery, and reliable long term solutions. I am confident that my expertise will meet your needs effectively. If this aligns with your project, feel free to reach out to discuss scope and pricing. WORST CASE SCENARIO YOU WALK AWAY WITH A FREE CONSULTATION. Regards Ridwaan M
₹7,500 INR in 7 days
0.0
0.0

I can help you create a permit-ready design package for a commercial rooftop solar system up to 50 kW, covering panel layout, wiring, inverter integration, and code documentation. The drawings will be clear for the authority and field electricians. I will focus on safe sizing, practical installation details, and accurate assumptions. The package will be ready for review and site use. From your project description, I understand: * The array layout must optimize panel placement, stringing, spacing, tilt, and energy yield. * The electrical design must include cable sizing, conduit runs, protection devices, grounding, and a clear single-line diagram. * The inverter must connect correctly to the existing service panel and include monitoring points. For your project, I will: 1. Review the roof plan, site conditions, utility data, service capacity, and applicable NEC/IEC and local AHJ rules. 2. Prepare CAD and PDF drawings for the array layout, single-line, wiring details, inverter placement, grounding, and equipment schedule. 3. Produce a generation estimate, bill of materials, and brief report with assumptions and code references. My relevant experience includes commercial solar layouts, electrical calculations, inverter selection, permit drawings, BOM preparation, and field-ready documentation. I check constructability, labeling, protection, and drawing consistency. Let’s discuss the site files and move the design package forward.
₹7,000 INR in 7 days
0.0
0.0

Hello, I’m a Solar Design Engineer with experience designing commercial PV systems and preparing permit-ready electrical drawing packages. I can deliver a complete design for your up to 50 kW rooftop solar project, including optimized panel layout, string sizing, inverter selection, single-line diagrams, wiring schematics, cable sizing, protection coordination, grounding, and equipment schedules. My deliverables will include: CAD (DWG) and PDF drawings Array layout with optimized stringing, tilt, and row spacing Single-line diagram and detailed electrical wiring Bill of Materials (BOM) and equipment schedule Energy yield estimate using PVsyst/Helioscope (or equivalent) Design report with applicable NEC/IEC code references I have hands-on experience with commercial rooftop solar projects and can produce accurate, well-organized documentation suitable for permitting and installation. I focus on practical, code-compliant designs that field electricians can use directly. I’d be happy to discuss your project requirements and start immediately.
₹5,000 INR in 7 days
0.0
0.0

I have a lot of experience with design. I have worked with some really big brands. I am allowed to install things for these brands. I am also an electrical engineer. I do this kind of work in my country Chile and I have even worked on some very big projects. I can make sure my designs meet the standards of your country. This is because you will probably be using the kinds of inverters and solar panels that we use. I can also make sure that installations meet the standards of brands like Huawei, Sigenergy, Growatt, Victron Energy, SMA, SolarEdge, Fronius and Solis. My company is called Sekim Energy. We do this kind of work. I think Sekim Energy can really help you with your solar panel needs. Sekim Energy has a lot of experience, with panels and inverters.
₹12,500 INR in 7 days
0.0
0.0

I'm a PV engineer with over 8 MWp of solar system design experience. I'm highly skilled in using AutoCAD, PVSYST, and SketchUp to provide the best solar system solutions for you. Don't hesitate to contact us if you need support on your project to build an efficient solar panel system.
₹10,000 INR in 7 days
0.0
0.0

Hello, I can complete your commercial solar system design professionally. I have experience with AutoCAD, PVsyst, single-line diagrams, panel layout, cable sizing, and bill of materials (BOM). I will provide accurate CAD drawings, PDF files, and maintain clear communication throughout the project. I am committed to delivering quality work on time and look forward to working with you.
₹7,500 INR in 8 days
0.0
0.0

Hello, I am a Power Electrical Engineer with extensive experience in residential and commercial PV solar system design. I have designed and supervised numerous solar projects ranging from small residential installations to large commercial systems. My expertise includes: ✔ PV system design using PV*Sol and PVsyst ✔ Accurate energy yield calculations and performance analysis ✔ String sizing and inverter selection ✔ Shading analysis and array optimization ✔ Detailed electrical design using AutoCAD and EPLAN ✔ Complete BOM preparation with accurate component specifications ✔ Single-line diagrams (SLD), protection device selection, and technical documentation Although my primary software is PV*Sol and PVsyst, I understand the engineering methodology behind PV system design and can quickly adapt to EasyPV and OpenSolar workflows. I focus on delivering: Accurate system layouts Reliable production estimates Optimized equipment selection Professional documentation that installers and homeowners can easily understand I am detail-oriented, meet deadlines consistently, and can handle a high volume of projects while maintaining engineering quality. I would be pleased to discuss your workflow and become a reliable long-term design partner. Best regards, Kaveh Shayanfar Power Electrical Engineer PV Solar System Design Specialist
₹7,000 INR in 7 days
0.0
0.0

Gurdaspur, India
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Member since May 4, 2026
₹1500-12500 INR
₹1500-12500 INR
₹1500-12500 INR
₹12500-37500 INR
₹1500-12500 INR
₹1500-12500 INR
min $50 USD / hour
₹1500-12500 INR
$15-25 AUD / hour
$250-750 USD
$30-250 NZD
$750-1500 USD
$250-750 USD
$250-750 AUD
£750-1500 GBP
$10-1000 AUD
£20-250 GBP
₹12500-37500 INR
£250-750 GBP
$30-250 AUD
$10-30 USD
₹1500-12500 INR
$250-750 USD
€8-30 EUR
$250-750 USD