The Solar Design (TSD) is a leading engineering firm specializing in renewable energy solutions, with core expertise in Solar designing, Sales proposals, Permit plans, As-built designs & Professional Engineering (Stamps & Calculations). We design solar systems for a wide range of projects, including residential, commercial, and utility-scale installations. Our services span the complete design lifecycle—from Sales proposal to full PV permit design packages, and detailed engineering drawings to professional engineering (PE) stamping—ensuring full compliance with applicable codes, regulations, and standards for seamless project execution.

We form long-term strategic partnerships with solar installers and EPC contractors across the US, offering dedicated permit drafting vendor support or overflow permit drafting support to manage peak workloads efficiently. Our solar design services are delivered at highly competitive pricing with industry-leading turnaround times, including full permit design delivery within 8–12 hours. Backed by over a decade of collective experience in the US solar market, we provide a comprehensive solution for all solar design needs, including sales proposals, solar permit packages, overflow drafting support, PE stamping services, and as-built drawings. Our streamlined and flexible processes allow us to adapt seamlessly to our clients’ operational demands.

Leveraging an extensive database of AHJ and utility-specific requirements, we ensure every design strictly adheres to local jurisdictional and interconnection standards. This disciplined approach has resulted in an approval success rate exceeding 96% across all US states, reinforcing our commitment to quality, speed, and meeting client SLAs.

We seamlessly integrate advanced technology into our design solutions to enhance performance and efficiency at every stage. Our experienced team combines deep technical expertise with innovative thinking to deliver solar designs that are sustainable, compliant, and aligned with the latest industry advancements.

We stand as the top-choice outsourcing ally for CAD-based Engineering designs, specializing in Solar Design projects. Backed by a skilled and exceptionally motivated team of professionals, we equip our clients with a strategic advantage in a cost-conscious market. Our commitment lies in delivering scalable and punctual solutions, adhering to agreed-upon quality SLAs.