Project Design Engineer

Canadian Solar Inc. is a global leader in solar energy solutions, dedicated to delivering clean, solar-powered electricity. The Project Design Engineer will support the development and engineering of Commercial & Industrial (C&I) energy storage and solar PV projects, focusing on system design, site assessments, and technical documentation.

Responsibilities

• Perform technical feasibility assessments, load and utility data analysis, and conceptual system design for C&I battery energy storage (BESS) and solar PV systems
• Develop preliminary system layouts, one-line diagrams, electrical calculations, and capacity modeling
• Conduct solar irradiance studies, shading analysis, and energy performance modeling
• Analyze interval utility data (15-min / hourly) to evaluate load profiles, peak shaving potential, and system sizing
• Review interconnection requirements, tariff structures, and utility programs (CPUC, IOUs, NEM, SGIP)
• Prepare preliminary bill of materials (BOM), equipment selection support, and cost assumptions for proposals
• Perform occasional site assessments and prepare technical site reports
• Coordinate with project development, sales, and construction teams to ensure technical alignment
• Maintain organized project documentation and support permitting & utility submissions as needed
• Assist in identifying BESS opportunities and portfolio design optimization

Skills

• Bachelor's degree in Electrical Engineering, Renewable Energy Engineering, Power Systems, or related field (or equivalent industry experience)
• Minimum 1–3 years of experience in distributed energy, solar, or energy storage design is preferred
• Understanding of electrical design principles (480V/277V, 208V/120V systems, transformers, DER interconnection)
• Knowledge of battery energy storage system design, safety, and project workflows
• Strong analytical and problem-solving abilities
• Excellent documentation and communication skills
• Ability to multitask and work cross-functionally in a fast-moving environment
• Willing to travel occasionally for site visits
• Experience with California C&I energy systems is strongly preferred
• Familiarity with California incentive & interconnection programs (SGIP, Rule 21, NEM/NBT/A)
• Experience with microgrid or hybrid BESS-PV systems is preferred
• Knowledge of NFPA 855, UL 9540, UL 1741, NEC Article 690 & 706 is preferred
• Experience with ESS enclosure vendors and inverter/EPC requirements is preferred
• PV & Energy Modeling: PVsyst, Helioscope (or Aurora Solar), SAM preferred
• CAD Tools: AutoCAD (2D), SketchUp or similar for layout
• Electrical Calculations: ETAP or equivalent preferred; NEC knowledge
• Data Analysis: Excel (advanced), VBA or Python a plus
• Utility Data & Tariff Tools: Utility API, Energy Toolbase or equivalent preferred

Company Overview

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