Job Description

Job Description

Senior Electrical Design Engineer – Battery Energy Storage Systems (BESS)

b19 is partnering with an established renewable energy company to find an experienced Senior Electrical Design Engineer to support the design and delivery of utility-scale Battery Energy Storage System (BESS) projects. This role is focused on the detailed engineering and design of AC collector systems, medium-voltage electrical infrastructure, and associated balance-of-plant (BOP) systems from concept through construction.

The ideal candidate has a strong background in electrical utility design, including collector systems, conductor sizing, equipment selection, and California GO95 requirements. Experience designing utility-scale battery storage facilities is essential.

Responsibilities

Electrical Design

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• Lead the electrical design of utility-scale Battery Energy Storage System (BESS) collector systems.
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• Develop engineering packages from conceptual design through Issued for Construction (IFC).
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• Design medium-voltage AC collector systems, including overhead and underground distribution.
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• Produce and review:
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• Single-line diagrams
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• Collector system layouts
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• Electrical site plans
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• Conduit and cable routing drawings
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• Equipment layouts
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• Bill of Materials (BOMs)
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• Size medium-voltage and low-voltage conductors, cables, conduit systems, and raceways.
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• Perform voltage drop, ampacity, fault current, and equipment loading calculations.
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• Develop grounding and bonding designs for BESS facilities.
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• Select and specify electrical equipment including:
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• Pad-mounted transformers
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• Medium-voltage switchgear
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• Reclosers
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• Sectionalizing switches
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• Metering equipment
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• Protective devices
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• Underground structures and duct banks
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Utility & Collector System Design

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• Design overhead collector systems in accordance with GO95 requirements and applicable utility standards.
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• Develop pole loading calculations and construction packages where applicable.
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• Coordinate utility interconnection requirements for collector system interfaces.
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• Prepare construction drawings for overhead and underground distribution systems.
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• Ensure compliance with utility engineering standards and applicable electrical codes.
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Project Delivery

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• Support projects from early development through detailed engineering and construction.
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• Coordinate with civil, structural, and mechanical disciplines to integrate electrical designs.
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• Review vendor drawings and equipment submittals for compliance with project requirements.
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• Prepare technical specifications and support procurement activities.
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• Respond to Requests for Information (RFIs) and provide engineering support during construction.
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• Participate in factory acceptance testing (FAT), site inspections, and commissioning activities as required.
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Client & Team Collaboration

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• Serve as a technical lead during client meetings and design reviews.
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• Develop engineering scopes, schedules, and cost estimates.
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• Mentor junior engineers and designers.
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• Support continuous improvement of engineering standards, templates, and design procedures.
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Qualifications

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• Bachelor's degree in Electrical Engineering from an accredited university.
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• 7+ years of electrical design experience in utility, renewable energy, or Battery Energy Storage System (BESS) projects.
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• Strong experience designing medium-voltage collector systems.
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• Demonstrated knowledge of California GO95 standards.
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• Experience sizing conductors, cables, conduit, raceways, and electrical equipment.
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• Experience preparing construction drawing packages using AutoCAD.
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• Working knowledge of:
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• NEC
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• NESC
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• GO95
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• IEEE standards
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• Utility engineering standards
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• Strong understanding of electrical balance-of-plant (eBOP) design.
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• Professional Engineer (PE) license or ability to obtain.
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• Experience with utility-scale Battery Energy Storage System (BESS) or renewable energy projects.
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• Experience designing collector systems for solar or battery storage facilities.
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• Familiarity with utility interconnection requirements and construction practices.
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• Experience using ETAP, EasyPower, CYMCAP, or similar engineering software.
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• Knowledge of grounding design, cable ampacity studies, and equipment specification development.
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• Experience coordinating multidisciplinary engineering projects.
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• Strong written and verbal communication skills.
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If interested, please apply with an updated resume.

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