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I am looking for an electronics engineer to design a 250 kw off grid solar inverter circuit, for a new product launch.
Project ID: 40649621
9 proposals
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Active 15 hours ago
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9 freelancers are bidding on average ₹11,222 INR for this job

As a highly-skilled and experienced team of RF & Electronics Engineers, we are perfectly equipped to tackle your Solar Inverter Circuit Design project with utmost precision and expertise. Our deep knowledge in circuit design, electronics, and embedded systems, combined with our proficiency in PCB design using major design tools such as KiCad and Altium Designer, makes us the ideal choice for this task. Our specialization in high-frequency systems and microwave engineering is a significant advantage when it comes to optimizing the performance of intricate circuits like a solar inverter - especially at such a high capacity of 250 kW. Additionally, we have an excellent command over tools like MATLAB which come handy during modeling and signal processing tasks as well as ANSYS HFSS widely used in electromagnetic simulation. In summary: Choose us not only because we excel at circuit design, electronics engineering or embedded system programming but choose us because when it comes to the complex task like your project demands ,we hold a wide range of specialized skill sets from circuit design to research contribution which match up perfectly with your project requirements.. Also choose us because after-care support is also part of our agenda, and you will get much more than just a satisfactory off-grid solar inverter circuit design if you hire us.
₹30,000 INR in 7 days
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Hi, I'd like to be considered for this project. Designing a 250kW off-grid solar inverter is a substantial undertaking, and I want to make sure I understand your requirements fully before committing to scope and timeline — things like input voltage range, battery/DC bus architecture, output waveform requirements, switching topology preference (e.g., multi-level or paralleled H-bridge modules), cooling strategy, and relevant compliance standards (UL, IEC, etc.) will shape the design significantly. My approach would be: An initial requirements and architecture review to align on topology, component selection, and thermal/safety constraints before schematic work begins. Circuit design and simulation (control loop, switching stage, protection circuitry) with documentation at each milestone for your review. Iterative revisions based on your feedback, followed by a final design package suitable for prototyping/manufacturing. I'd welcome a call to discuss your target specs, certifications needed, and expected timeline before providing a detailed proposal and quote. Looking forward to learning more about the product.
₹1,050 INR in 7 days
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As a seasoned electronics engineer and the founder of an innovative end-to-end electronics organization, I am fully equipped to expertly design your 250 kW off-grid solar inverter circuit. My team is adept at all aspects of hardware design - from meticulously crafting schematics to creating optimized PCB layouts and Bill of Materials (BoM) with strategic component selections. These skills are crucial for ensuring your product's long-term reliability, resilience, and market accessibility. This aligns perfectly with your goal of developing a viable product for launch. In addition to this, we have extensive experience in the firmware development of various microcontrollers like Arduino, ESP32, and STM32 platforms. This means we can create application-specific programming tailored to your hardware integration and functional requirements. Over our 2-year professional journey, we have undertaken numerous diverse projects similar to yours & our delivered designs have garnered unwavering client trust & satisfaction. This includes groundbreaking work such as designing an ultra-compact commercial drone that integrated control and power interface into a mere 35 mm x 45 mm footprint,and crafting a custom Arduino-based solution for Kinetic lights control- involving the precise driving and control of 3 stepper motors.
₹10,000 INR in 7 days
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I would love to get on a quick call to discuss your specific technical requirements, targeted efficiency, and the timeline for your product launch. Could you let me know if you are leaning towards a central inverter architecture or a modular approach (e.g., 5 x 50kW modules in parallel) for this 250kW system?
₹1,050 INR in 3 days
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I am am Industrial Chemical Electrician that as Installed several Solar systems ranking from 5 KW all the way to 300KW. This experience has given me an extensive knowledge of solar inverters and a keen understanding of the relationship between electricity and the designed circuit. I've handled various aspects such as electrical installations, solar panel placement, off-grid inverter design, and troubleshooting technical issues which will be immensely valuable in custom-designing a 250 kw off-grid solar inverter for your new product. Moreover, my proficiency extends to not just the technical field but also to the digital platform. As a bonus skill, I have gained mastery in using software like Create Content For Clients, Photoshop, and converting unedited documents editable. This multi-faceted approach ensures that I am capable of not only designing but also presenting high-quality work that can be easily integrated into your project's wider eco-system with maximum efficiency. Solidifying my qualifications is my strong problem-solving knack. I am adept at breaking complex concepts into manageable ones and approaching them with a fresh perspective to find innovative solutions. So from understanding electrical drawings to proficient electronics design - I guarantee excellent performance and total professionalism in every step of this project. Looking forward to leveraging my expertise for your solar inverter circuit design!
₹1,050 INR in 7 days
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With a comprehensive skill set in circuit and PCB design, my name is Neha, and I'm your dedicated engineer for this solar inverter project. As an Electronics and Communication Engineering graduate with specialized knowledge in battery hardware R&D, I'm well-versed with transforming conceptual designs into tangible, marketable assets like the one you're seeking. In addition to my expertise in designing complicated circuits with a focus on optimal signal integrity and clean power distribution, I have also worked extensively on developing custom lithium-ion battery packs. This experience proves invaluable given how crucial efficient energy storage is to the success of your off-grid solar inverter. My proficiency in managing every stage of the hardware development process equips me with insights into potential problems and their solutions early on - saving valuable time and resources. Furthermore, my commitment to delivering production-ready designs aligns perfectly with your aim for this product launch. With me, you'll not only receive a highly functional circuit but a complete manufacturing package that includes meticulous documentation and assembly data. In summation, if you're looking for an engineer who knows how to bring complex circuit concepts to life while maintaining high-quality standards throughout - look no further!
₹1,050 INR in 7 days
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I can design and build a solar inverter circuit that converts DC input from a solar panel into usable AC output. The design would use an H-bridge switching topology with IGBTs as the main switching elements, driven by a PWM control signal to shape the output into an approximate sine wave, with an LC filter stage to smooth the result and reduce harmonic distortion. This would be built as a functional prototype — a solid demonstration of core power electronics principles like DC-AC conversion, switching control, gate driving, and filtering — rather than a certified, grid-ready system. I'm happy to scope the build around your specific power requirements and budget.
₹800 INR in 5 days
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Hi, I’m interested in designing your 250 kW off-grid solar inverter for your new product launch. I can help develop a robust power-electronics architecture with a strong focus on efficiency, reliability, protection, and scalability. My work can cover: - Complete inverter system architecture and power-stage design - PV/DC input and high-power DC bus design - High-power switching stage and gate-driver selection - MPPT and power-management architecture - DC-DC/DC-AC conversion stages as required - Control and sensing circuits for voltage, current, temperature, and fault conditions - Protection against over-current, short-circuit, over-voltage, under-voltage, and over-temperature - Isolation, pre-charge, DC-link capacitors, contactors, fuses, and emergency shutdown considerations - Thermal management and high-current busbar/PCB layout recommendations - Component selection and ratings based on the required operating conditions - Simulation and design verification before hardware fabrication - Detailed schematics, BOM, design calculations, and documentation For a 250 kW system, I would first establish the required PV voltage range, battery voltage/DC-bus architecture, AC output voltage and frequency, peak/surge requirements, efficiency target, cooling method, and applicable safety/grid standards before finalizing the topology.
₹1,000 INR in 3 days
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bhubaneshwar, India
Member since Nov 6, 2014
₹600-601 INR
$250-750 USD
₹150000-250000 INR
€250-750 EUR
$30-250 USD
$8-15 USD / hour
₹600-1500 INR
$1000-4000 USD
€250-750 EUR
$8-15 USD / hour
$30-250 USD
$10-30 USD
₹600-1500 INR
$30-250 USD
$150-500 USD
$30-250 USD
min $50 USD / hour
$250-750 USD
£20-250 GBP
$250-750 USD