Substation Design Engineer

Louth Callan; Enfield (CT); Hybrid; USD 80,000 - 110,000; Full time

Job summary

Louth Callan is seeking a Substation Design Engineer in Enfield, Connecticut, responsible for electrical design in utility-scale solar projects. The role includes developing designs for substations, ensuring compliance with codes and standards, and collaborating across teams.

The ideal candidate holds a Bachelor’s degree in Electrical Engineering and has strong knowledge in power systems, medium- and high-voltage equipment. Remote work is possible, with potential travel to project sites required.

Qualifications

• Proven experience in substation or power systems design.
• Strong understanding of medium- and high-voltage electrical systems.
• Experience supporting construction and field execution preferred.

Responsibilities

• Develop electrical designs for medium- and high-voltage substations supporting renewable energy projects.
• Prepare one-lines, three-lines, wiring diagrams, and equipment layouts.
• Ensure designs comply with NEC, NESC, IEEE standards, and utility requirements.

Skills

Power systems fundamentals

Medium- and high-voltage equipment

Communication skills

Analytical skills

Education

Bachelor’s degree in Electrical Engineering or related field

Tools

AutoCAD

MicroStation

Job description

The Substation Design Engineer is responsible for the electrical design and engineering of substations supporting utility‑scale solar and renewable energy projects. This role supports projects from early conceptual design through issued‑for‑construction (IFC) drawings, ensuring compliance with applicable codes, utility standards, and project requirements. The ideal candidate has strong power systems fundamentals, experience with medium‑ and high‑voltage equipment, and the ability to collaborate across engineering, construction, and project management teams.

Key Job Responsibilities *

• Substation & Power Systems Design
• Develop electrical designs for medium- and high-voltage substations supporting renewable energy projects.
• Prepare one-lines, three-lines, wiring diagrams, grounding plans, protection and control schematics, and equipment layouts.
• Design and specify substation equipment including transformers, breakers, relays, switches, and protection systems.
• Perform basic power system studies as required (load flow, short circuit, grounding, etc.).
• Produce and review design drawings using AutoCAD and/or MicroStation.
• Prepare technical specifications, design calculations, and engineering documentation.
• Support permitting, utility interconnection, and regulatory submittals.

Cross-Functional Coordination

• Coordinate with civil, structural, protection & controls, and solar engineering teams.
• Support construction teams by responding to RFIs, reviewing submittals, and resolving field issues.
• Interface with utilities, AHJs, and third-party engineers to ensure alignment with interconnection and design standards.

Compliance & Standards

• Ensure designs comply with NEC, NESC, IEEE standards, utility requirements, and project-specific criteria.
• Incorporate safety, constructability, and long-term reliability into all designs.
• Support commissioning and energization activities as needed.

The Key Job Responsibilities described are not a comprehensive list – additional tasks may be assigned to the team member and the scope of the job may change as necessitated by business demands.

Requirements

• Bachelor’s degree in Electrical Engineering or a related field.
• Proven experience in substation or power systems design.
• Strong understanding of medium- and high-voltage electrical systems.
• Proficiency with AutoCAD and/or MicroStation.
• Familiarity with utility interconnection requirements and substation standards.
• Knowledge of NEC, NESC, IEEE, and applicable electrical codes.
• Experience supporting construction and field execution preferred.
• Strong analytical, organizational, and problem-solving skills.
• Ability to work effectively in a fast-paced, multi-project environment.
• Clear written and verbal communication skills.

Work Environment / Job Conditions:

• Remote work environment.
• Travel to project sites, utility meetings, or Enfield, Connecticut may be required based on Company needs.
• Field visits to active construction sites may be required.