Electrical Engineer, Senior/Intermediate - Solar & BESS in Mississauga, Ontario, Canada

Essential Job Functions:

Lead electrical engineering efforts for utility scale solar and lithium-ion BESS projects from concept (system sizing, layout) through construction.

Interface with utilities and ISO/RTOs to support interconnection submittals, permitting, and compliance for new renewable and BESS projects.

Prepare, review, and coordinate electrical engineering deliverables, including: Single-line diagrams Protection and control schematics Electrical layouts Equipment specifications Substation designs (34.5 kV to 230 kV+) MV/HV collector system designs

Single-line diagrams

Protection and control schematics

Electrical layouts

Equipment specifications

Substation designs (34.5 kV to 230 kV+)

MV/HV collector system designs

Support the design and integration of: Utility-scale Solar PV systems BESS facilities Auxiliary power systems Interconnection infrastructure Protection and control systems

Utility-scale Solar PV systems

BESS facilities

Auxiliary power systems

Interconnection infrastructure

Protection and control systems

Perform and review power system engineering studies, including: Load flow analysis Short circuit analysis Grounding studies Arc flash studies Protection coordination studies

Load flow analysis

Short circuit analysis

Grounding studies

Arc flash studies

Protection coordination studies

Ensure engineering deliverables comply with: Client specifications Applicable utility requirements Interconnection standards Industry codes and standards (IEEE, CSA, NEC, NESC, etc.)

Client specifications

Applicable utility requirements

Interconnection standards

Industry codes and standards (IEEE, CSA, NEC, NESC, etc.)

Support projects through all phases, including: Feasibility and conceptual design Detailed engineering Procurement support Construction support Commissioning and energization

Feasibility and conceptual design

Detailed engineering

Procurement support

Construction support

Commissioning and energization

Maintain up-to-date knowledge of BESS technologies, codes, and industry trends.

Coordinate with clients, utilities, OEMs, contractors, and multidisciplinary internal teams.

Prepare and review technical reports, engineering calculations, design criteria documents, procurement packages, and construction documentation.

Coordinate with internal stakeholders and external consultants to track scope, schedule, and budget.

Support construction activities by responding to RFIs, reviewing submittals, participating in site coordination activities, and resolving technical issues.

Assist with project planning, scheduling, resource coordination, and technical leadership activities.

Contribute to continuous improvement initiatives, technical innovation, and knowledge sharing within the Power Division.

Required Qualifications:

· Bachelor’s degree in Electrical Engineering from an accredited university.

· Minimum of 7 years of relevant engineering experience, preferably in:

o Renewable energy

o Utility-scale Solar PV

o Battery Energy Storage Systems (BESS)

o Power systems engineering

o Transmission and distribution infrastructure

· Demonstrated experience supporting or leading renewable energy and/or substation engineering projects.

· Strong technical knowledge of:

o Solar PV systems

o BESS technologies

o BESS use-cases including peak shaving, load shifting, demand response, and frequency response

o Medium- and high-voltage substations

o Interconnection design requirements

o Protection and control systems

· Experience performing power system studies using industry-standard software such as:

o ETAP

o CYME

o PVsyst

o PVCase

· SME in knowledge of NEC 705, NEC 706, IEEE 1547, UL 9540, and NFPA 855.

· Proficiency in AutoCAD/Revit, Bluebeam, Microsoft Office

· Professional Engineer (P.Eng. or PE) designation in Canada and/or the United States, or eligibility to obtain registration.

· Strong written and verbal communication skills with the ability to work effectively in multidisciplinary and client-facing environments.

· Experience working in consulting engineering environments and managing multiple concurrent projects is considered an asset.

· Ability to travel occasionally to project sites, client offices, and commissioning activities as required.

Nice To Haves

· Preferred proficiency in Transmission-level load flow and stability using PSSE and PSLF

· Preferred proficiency in Electromagnetic Transient Simulations using PSCAD, EMTC or similar

· Preferred proficiency in SEL Relay Settings using SEL AcSELerator or equivalent

· Preferred proficiency in Design of HVDC systems and converter station

Physical Requirements:

Ability to sit or stand as required and remain in a stationary position for at least 50% of the workday.

Frequent use of hands and fingers to handle, manipulate, or feel objects, including continuous operation of a computer and other standard office equipment such as calculators, copiers, and printers.

Work Environment / Environmental Factors:

The majority of work is performed in a professional office setting.

Periodic travel may be required and could involve limited exposure to extreme temperatures. Travel may include air travel, during which the employee may be required to remain seated for extended periods.

Additional Information

Tetra Tech offers comprehensive benefit options that allow employees to design a plan based on individual needs and assists in planning for long-term financial security. Available benefits include medical, dental and vision insurance, term life, disability, accidental death & dismemberment coverage, time off with pay, retirement plan, and an Employee Stock Purchase Plan.

Life at Tetra Tech:

The perks of working at Tetra Tech include:

· Comprehensive and market-competitive benefits.

· Merit-based financial rewards.

· Flexibility and company-wide commitment to work/life balance.

· Collaborative team atmosphere that values the contributions of all employees.

· Learning and development opportunities for ongoing professional growth.

About Tetra Tech:

Tetra Tech is the leader in water, environment, and sustainable infrastructure, providing high-end consulting and engineering services for projects worldwide. With 30,000 employees working together, Tetra Tech provides clear solutions to complex problems by Leading with Science ® to address the entire water cycle, protect and restore the environment, design sustainable and resilient infrastructure, and support the clean energy transition.

Tetra Tech is proud to be an Equal Opportunity Employer. All qualified candidates will be considered without regard to race, color, religion, national origin, age, disability, sex, marital or familial status, status as a protected veteran, or any other characteristic protected by law.

Tetra Tech may use AI-enabled tools to screen, assess, and assist in selecting applicants for this position based on job-related criteria. However, a human decision-maker will decide who moves forward throughout every stage of the hiring process.

We invite applications from all interested parties.

Explore our open positions at https://www.tetratech.com/careers. Follow us on social media to learn more about our people, culture, and opportunities:

LinkedIn: @TetraTechCareers

X (Twitter): @TetraTechJobs

Organization: 705 PWR