Structural & Electrical Engineering
BIM & 3D Modeling
EV Charging Infrastructure



Structural & Electrical Engineering
BIM & 3D Modeling
EV Charging Infrastructure
Dedicated Resident Engineers
Seamless Workflow Integration
Employee Exchange Programs
Installation-Trained Designers
Zero Construction-Phase Errors
Practical Site Logic
Who We Are
At RS Solar CAD Group, we are committed to advancing renewable energy through precise and reliable solar design services. With a team of skilled engineers and CAD professionals, we deliver high-quality, permit-ready solar plan sets with fast turnaround times and strong approval success rates.
We partner with solar installers, EPC companies & vendors, financing partners, manufacturers & suppliers, and mounting & racking companies across the United States and Canada to deliver permit-ready solar design solutions with speed and accuracy.
Our Expertise
RS Solar CAD Group provides an integrated outsourcing model supporting solar installers, EPCs, and engineering firms across the U.S. and Canada. We act as a captive offshore extension of your in-house team, ensuring high-quality, scalable execution aligned with your standards.
We handle the full design side of your solar projects – from proposal layouts to permit plan sets. The designs are made the way installers actually need them, so approvals don’t get stuck and your team doesn’t waste time fixing drawings later.
We don’t redesign your work – we check it, correct it where needed, and get it stamped. This helps you avoid rejection due to small errors and keeps your project moving without repeated comments from authorities.
We create EV charging plans that are easy to approve and easy to build. Load calculations, layouts, and documentation are all prepared in a way that your team can directly use on-site without confusion.
Instead of hiring and training new people, you can work with our team as your backend support. We handle design tasks, updates, and even basic follow-ups so your internal team can focus on execution and closing projects.
For India-based projects, we don’t stop at design – we help get the system installed properly. From planning to final setup, the focus is on completing the work correctly and making sure everything runs as expected.
Why Choose Us
Built for Speed. Designed for Approvals. Trusted by Solar Professionals.
Delivering fast, accurate solar permit designs with high approval rates, helping solar businesses scale efficiently across the US and Canada.
We don’t just promise speed—we structure our workflow around it. With a dedicated night-shift model aligned to US time zones, most permit plans are delivered within 24–48 hours. This allows installers and EPC teams to move projects forward without waiting on design bottlenecks or internal bandwidth issues.
Every plan set is built with AHJ expectations in mind. We follow jurisdiction-specific requirements, utility standards, and code compliance from the start—so you don’t go back and forth on revisions. That’s how we consistently maintain a high first-time approval rate across multiple states.
This is not template-based work. Our team includes experienced solar designers and engineers who understand real project challenges—roof constraints, load calculations, system sizing, and layout optimization. You get practical, build-ready designs, not just drawings that look good on paper.
Hiring and training an in-house design team is expensive and slow. We act as your extended team, delivering consistent quality at a predictable cost. Whether you have 5 projects or 500, you can scale without increasing internal overhead or compromising turnaround time.
Solar projects don’t wait—and neither do we. With 24/7 operations, our team is always working in the background. While your US team is offline, we’re actively designing, so you wake up to completed plans ready for submission or review.
We already work with EPC companies, installers, racking providers, and manufacturers. That means we understand different workflows, tools, and expectations. Instead of explaining everything from scratch, you get a partner who fits into your process from day one.
Why Choose Us
Built for Speed. Designed for Approvals. Trusted by Solar Professionals.
Roadmap
We Serve
Reviews
Your Feedback Matters

“Very happy with the quality of work. The installation was quick, and the staff was knowledgeable and friendly. They helped us choose the right system for our needs.”

“Excellent service and great support! The solar system is working perfectly, and we are already seeing savings. Highly recommend them for anyone looking to switch to solar energy.”

“We recently installed solar panels and the experience was smooth from start to finish. The team was professional, explained everything clearly, and completed the installation on time. Our electricity bill has dropped significantly!”
FAQ
We combine engineering precision with real-world installation experience to deliver designs that work.
We design based on exact AHJ requirements and perform strict QA checks before delivery.
Every jurisdiction has different expectations, and most rejections happen due to small compliance gaps. Our team follows AHJ-specific guidelines, NEC codes, and utility requirements from the beginning. Before delivery, each plan goes through an internal quality check where we verify layouts, labels, calculations, and documentation. This reduces back-and-forth and helps achieve a consistently high first-time approval rate.
Basic project details like site info, system size, and equipment are enough to begin.
To start quickly, we typically need the site address, utility bill, system size (or target offset), and any preferred equipment. If you have site photos, roof dimensions, or drone images, that helps improve accuracy. Even if some details are missing, our team can guide you step-by-step and still initiate the design process without delays.
Yes, we are built to support high-volume solar businesses.
Our team structure is designed for scalability. Whether you’re handling a few projects per week or large daily volumes, we can manage your workload without affecting turnaround time. Many EPCs and installers use us as their extended design team, allowing them to grow without hiring and training in-house designers.
We have a fast-track workflow for urgent and priority projects.
We understand that some projects are time-sensitive—especially when permits or installations are scheduled. For urgent cases, we assign priority resources and follow an accelerated workflow. Depending on project complexity, we can deliver same-day or overnight designs, helping you meet tight deadlines without compromising quality.
We quickly revise designs based on AHJ feedback at no hassle.
While rejections are rare, they can happen due to changing AHJ expectations. In such cases, we review the comments, update the drawings accordingly, and resubmit quickly. Our goal is to minimize delays and keep your project moving. We stay aligned with AHJ feedback to avoid repeated issues in future submissions.
Yes, we align with your design format, branding, and workflow.
Every company has its own way of working—title blocks, equipment preferences, design styles, and documentation formats. We adapt to your internal standards so that every plan set looks consistent with your brand. This is especially useful for EPCs and installers managing multiple teams or clients.
We follow region-specific codes and maintain updated compliance knowledge.
AHJ requirements vary widely across states and cities. Our team keeps track of these differences and applies the correct standards for each project. We continuously update our internal processes based on new codes, ensuring that your designs remain compliant no matter where the project is located.
Yes, we design using your selected modules, inverters, and systems.
We don’t force standard configurations. Whether you use specific brands or unique system setups, we design accordingly. Our team ensures compatibility between components, proper system sizing, and compliance with manufacturer and electrical guidelines.
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Partner with world-class engineers for your solar & roofing needs.