The Principal Battery Energy Storage System (BESS) Integration Engineer serves as a technical authority for the evaluation, specification, integration, commissioning, and lifecycle management of battery energy storage systems supporting advanced power generation solutions.
This role provides system-level engineering leadership across BESS technology selection, electrical integration, protection, controls, communications, safety, and commissioning. Working closely with electrical, controls, civil, mechanical, procurement, construction, commissioning, safety, and operations teams, the engineer develops technical standards and specifications, evaluates vendors, and ensures BESS solutions deliver the required performance, reliability, safety, and long-term value.
The position will have particular focus on BESS integration supporting AI and hyperscale data centers, behind-the-meter generation, microgrids, and other complex power systems.
Key Responsibilities
- Lead the development of technical requirements and performance specifications for utility-scale and behind-the-meter BESS installations, including capacity, duration, dynamic response, reliability, grid-forming/grid-following operation, and black-start capability.
- Evaluate BESS technologies, system architectures, suppliers, and integrators; develop technical bid evaluations and support vendor selection and commercial negotiations.
- Define electrical integration requirements between BESS, generation assets, medium-voltage distribution systems, switchgear, transformers, microgrids, and data center loads.
- Establish protection, controls, communications, and energy-management requirements, including voltage and frequency regulation, load sharing, state-of-charge management, and emergency operating modes.
- Develop system-level operating philosophies and Theory of Operation documentation for normal, islanded, generator-support, load-transient, black-start, emergency, and maintenance conditions.
- Lead technical safety and reliability assessments, including thermal-runaway mitigation, fire protection, HAZOP, FMEA, risk assessments, and applicable code and standards compliance.
- Develop lifecycle and total-cost-of-ownership evaluations considering degradation, auxiliary power, augmentation strategies, warranties, operating costs, and end-of-life requirements.
- Develop repeatable engineering, site-layout, installation, and construction standards for BESS deployments.
- Lead or support factory acceptance testing, site acceptance testing, commissioning, energization, troubleshooting, performance validation, and turnover to operations.
- Collaborate across engineering, procurement, construction, operations, safety, and commercial teams to ensure BESS solutions meet technical, contractual, and business requirements.