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I'm seeking an experienced Open Solar designer for commercial and residential PV solar and battery energy storage projects. Experience with solution design, simulations and string layouts is essential. Ability to work with project and installation teams along with excellent communication skills required. This is an ongoing opportunity. Hourly Rate or Happy to discuss price per proposal.
Project ID: 40505053
22 proposals
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Active 21 secs ago
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22 freelancers are bidding on average €17 EUR/hour for this job

With a deep-rooted knowledge in Electrical Engineering and a demonstrated proficiency in energy and renewable energy design and simulation, I am the perfect fit for your Opensolar project. My expertise in digital and analog designs applied to power electronics lends itself seamlessly to the task of PV solar and battery energy storage solutions design. Having worked extensively on low power distribution, motor controls, and converters - AC/DC, DC-DC, battery chargers, and solar inverters - my projects have underscored my commitment to precision in this field. My experience extends further to working with embedded systems such as ESP32 and ESP8266 modules which are integral to your demand for work across commercial and residential settings. My third-party tools like Orcad, Altium, Easyeda give me an added advantage in schematic and PCB design. Beyond that, my proficiency in Matlab aids efficient power electronics simulations specifically designed for your functionalities like wind energy and control applications. A point of pride for me lies in being able to communicate effectively with teams, ensuring smooth coordination on projects. Let's bring efficiency to your energy projects together!
€15 EUR in 20 days
7.4
7.4

HI, KINDLY READ THROUGH MY PROPOSAL I will provide expert Open Solar design services for your commercial and residential PV solar + battery energy storage projects, delivering optimized system designs, accurate simulations, string layouts, and full technical documentation. MY APPROACH ✅ Phase 1: Site assessment, load analysis, and system sizing using Open Solar. ✅ Phase 2: Detailed PV + BESS design, string layouts, shading analysis, and performance simulations. ✅ Phase 3: Coordination with installation teams, BOM generation, and handover of all required drawings and reports. RELEVANT PROJECTS • Multiple Open Solar designs for residential and commercial systems (rooftop, ground-mount, and hybrid storage) across India and the Middle East with strong focus on efficiency, compliance, and seamless team collaboration. DELIVERABLES • Complete Open Solar project files with simulations and string layouts • Technical drawings, BOM, and performance reports • Clear communication and support for project/installation teams Pricing: Open to hourly rate or fixed price per proposal, depending on project scope. QUESTIONS 1. What is the typical project size (kW/kWh) you are currently handling? 2. Do you need support for a specific ongoing project right away? 3. Any particular standards or client requirements to prioritize (e.g. net metering, DISCOM rules)? Ready to start immediately. Looking forward to supporting your growing pipeline.
€12 EUR in 40 days
6.3
6.3

Hi, I am interested in supporting your commercial and residential solar PV and battery storage projects. I have experience in electrical system design, renewable energy projects, system sizing, energy analysis, and technical proposal development. I can assist with OpenSolar project creation, PV array layouts, string design, shading analysis, production simulations, battery storage integration, and preparation of client-ready proposals. My engineering background allows me to work effectively with project managers, installers, and clients to ensure designs are technically sound, code-compliant, and optimized for performance and cost. I am comfortable handling both single residential systems and larger commercial installations, including ongoing design revisions and support throughout the project lifecycle. I am available for long-term collaboration and can work on either an hourly basis or a fixed-price-per-proposal arrangement. I would be happy to discuss your workflow, project volume, and turnaround requirements. I look forward to hearing from you. Reagrds.
€15 EUR in 40 days
5.7
5.7

Hello, I am a Mechanical Engineer and CAD specialist with over 15 years of industrial experience, including extensive involvement in solar power projects totaling approximately 20 MW across ground-mounted, tracker-based, and rooftop PV installations. Most of my experience has been with grid-connected (on-grid) solar systems, supporting projects from engineering, design coordination, installation, and commissioning activities. My background has provided me with a strong understanding of PV system layouts, string configurations, equipment selection, energy production considerations, and the practical aspects of solar project execution. I am interested in establishing a long-term working relationship and am available on either an hourly basis or a fixed-price-per-project arrangement. I would be pleased to discuss your requirements in more detail and learn how I can support your ongoing solar and battery storage projects. Best regards,
€14 EUR in 20 days
5.3
5.3

Hi, Thanks for posting! We wants to do business with you. Please let us know a right to talk to you. Thanks & Regards Sudhir
€15 EUR in 40 days
4.8
4.8

Dear Client I am writing to express my strong interest in your opening for an OpenSolar designer. With extensive experience in solar system engineering, I am confident in my ability to deliver high-quality, precise, and installation-ready designs for your residential and commercial projects. While my primary expertise lies in PVsyst—where I have performed in-depth energy yield assessments, complex shading analysis, and precise string sizing—I am also highly proficient in OpenSolar. I understand that OpenSolar is an excellent tool for sales and rapid design, and I can bridge the gap between its user-friendly interface and the technical rigor required for a robust system design. Why I am a strong fit for your team: Deep Engineering Knowledge: I have a comprehensive understanding of panel placement, string layouts, voltage/current calculations, and power optimization. I ensure that all designs are not only aesthetically pleasing but also electrically sound and optimized for performance. Proven Large-Scale Experience: I have successfully designed two **3.5 MW solar power plants**. I have attached a preview of my work: I am ready to share the documentation] including the detailed simulation reports and layout results as a testament to my technical capabilities. Installation-Oriented Approach: I recognize the importance of collaborating with project teams. My designs prioritize practicality, ensuring that the installation team has clear, accurate documentation that minimizes on-site issues. Regarding the engagement and compensation: My preferred mode of collaboration is project-based, as I find it leads to the most efficient and focused delivery of high-quality proposals. For project-based work, my pricing typically ranges from **$150 to $250 per project**, depending on its complexity and scope. However, I am also open to hourly arrangements if that better suits your needs, and I am comfortable working with urgent requests. I am ready to start immediately and am confident that my background will allow me to hit the ground running with your current pipeline. I would welcome the opportunity to discuss your current project requirements and demonstrate how my technical background can streamline your design process. Thank you for your time and consideration. Best regards, Mahmoudreza A.
€15 EUR in 30 days
4.3
4.3

Hi, we've been using Open Solar since 2020 on daily basis for solar installers in USA and Canada. We can provide you our services as well. You can test us with couple of FREE sample projects before hiring.
€12 EUR in 80 days
3.3
3.3

Hi there, I am an experienced solar designer proficient in OpenSolar, PVsyst for accurate simulations, and AutoCAD for precise string layouts and technical drawings. I have extensive experience in designing commercial and residential PV and battery storage systems, ensuring both technical compliance and financial viability. I am comfortable collaborating with installation teams and delivering professional, client-ready proposals. I am ready to start immediately. Let’s discuss how I can add value to your projects.
€15 EUR in 40 days
2.1
2.1

Hi there, thank you for reviewing my proposal. I'm a solar power enthusiast, a state-certified Electronics Engineer, and a Senior Software Engineer with over 20 years experience. LiFePO4 battery systems are my expertise. I have hand-built a 25-kWh solar battery backup system for my home consisting of three banks of LiFePO4 batteries with three solar inverters, respectively. I'm a Will Prowse disciple and I have around 500 posts in his solar energy community. I'm also a fan of Victron products. I'm not an Open Solar expert but I'm really excited about this opportunity and I look forward to hearing from you. Best regards, Valentino
€15 EUR in 40 days
0.0
0.0

Hello, You have dozens of proposals. will keep this short. You are thinking: "Another designer who will draw pretty layouts but has no idea how string sizing or battery integration actually works." Hey, that's fair. Here is how we work: You share the project specs (commercial or residential). I deliver complete Open Solar designs simulations, string layouts, and battery storage integration ready for installation teams. You approve the milestone. Only then get paid. Would it be a disaster to award me this project and find out why ongoing solar partners trust me with both design and installation-team communication? Either way, good luck with the projects. Best, Sibora Magige
€16 EUR in 40 days
0.0
0.0

Hello, I am an experienced OpenSolar designer with a strong background in commercial and residential PV solar and battery energy storage projects, including solution design, simulations, string layouts, and energy modelling. I have worked closely with project and installation teams, and I communicate clearly to ensure designs are practical, code‑compliant, and easy to install. I can produce accurate system designs, shading analysis, single‑line diagrams, equipment lists, and performance simulations within OpenSolar. I am available for ongoing work and am happy to discuss either an hourly rate or a price per proposal. I am available to start immediately — please share your project location, typical system sizes, and any preferred equipment brands. Best Regards
€15 EUR in 40 days
0.0
0.0

Hi, Greetings For The Day I have read your requirements very carefully and i am very sure i can work on your requirements much more i will provide you services 24/7 so get in touch with me and lets comete this project
€40 EUR in 160 days
0.0
0.0

Experienced Electrical Engineer specializing in solar PV and battery storage design. Proficient in OpenSolar for commercial and residential projects, including system sizing, energy yield simulations, string layouts, shading analysis, battery integration, and proposal preparation. Strong collaboration skills with project managers and installation teams, ensuring accurate, compliant, and cost-effective designs. Available for ongoing work on either an hourly rate or fixed-price-per-proposal basis. Committed to clear communication, quality deliverables, and meeting project deadlines.
€18 EUR in 20 days
0.0
0.0

Hi, I have reviewed your requirement for an experienced OpenSolar designer for commercial and residential PV + battery energy storage systems and I can confidently support this type of ongoing work. I have a background in electrical engineering and hands-on experience working directly on solar PV system design, including solution development, simulation work and practical system layout considerations. I understand the importance of accuracy in string design, performance optimization and ensuring designs are fully aligned with installation and project execution requirements. My approach focuses on: • Accurate PV system design using simulation-based planning • Proper string layout optimization for performance and safety • Integration of battery storage considerations into system design • Clear coordination with project and installation teams • Delivering designs that are practical, build-ready, and compliant I prioritize clear communication and structured workflow so designs are not only technically correct but also easy for installation teams to execute without ambiguity. I am comfortable working on ongoing projects and can adapt quickly to your design standards and preferred workflow tools. Available to start immediately and support both hourly or per-project arrangements depending on your structure. Looking forward to collaborating. Best regards
€15.55 EUR in 40 days
0.0
0.0

Hello, I am an Electrical Engineer with experience in renewable energy projects, electrical design, AutoCAD/EPLAN drawings, technical documentation, BOM preparation, and project coordination. I can support you with PV solar and battery energy storage system design, string layouts, simulations, and clear technical communication with project and installation teams. I am detail-oriented, organized, and able to work on ongoing projects with accurate documentation and timely delivery. I would be happy to discuss your project requirements and start with a test task or proposal-based work.
€13 EUR in 40 days
0.0
0.0

Dublin, Ireland
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