Energy Storage System (ESS) Specialist

Overview

Lead design, integration, and commissioning of utility‑scale battery energy storage systems.

Key Responsibilities

• integration testing
• system integration
• technical design
• data analysis
• performance monitoring
• safety review

Tasks

-Preparing integration test plans for BESS systems and conducting technical reviews of relevant documents. -Integration of battery DC system (BESS Skid), AC systems, and Energy Management Systems (EMS) at the site, ensuring a seamless integration of all components. -Leading the technical design and project management of battery-based energy storage systems, from conceptual design to commissioning and post-commissioning support. This includes coordination with technical Solutions team, product team and external EPC, ICP and contractors. -Assist in technical risk identification and resolution through active participation in HAZID, HAZOP and design review workshops. -Monitor the operational performance of commissioned BESS assets across multiple sites, analyse system data to detect anomalies, and lead root cause investigations of technical issues. Collaborate with engineering, product, and O&M teams to implement corrective actions, system updates, or design changes aimed at improving reliability, safety, and performance of the BESS units. -Coordinating with internal and external stakeholders for the design and integration of control systems, ensuring clear communication and alignment. -Preparing electrical equipment specifications, data sheets, and bid evaluations to support procurement and ensure compliance. -Driving technical innovation and supporting the technology roadmap for BESS products and systems. -Review of thermal management, fire suppression and safety controls in line with UL9540A and UK HSE / Fire Safety expectations.

Requirements

• ena g99
• degree
• battery tech
• pcs
• 6+ yrs
• fat/sat

What You Bring

-Familiarity with UK grid compliance (ENA G99) and commissioning processes. -Degree in Electrical Engineering, Power Systems or related discipline. -In-depth knowledge of battery technologies (LFP/NMC), PCS functionality, protection, communication interfaces, and system-level design. -Strong coordination, stakeholder management and problem-solving skills. -Being familiar with and applying codes, standards, and regulations relevant to the UK. -Deep understanding of PCS technology, operations, fault contributions, inertia and reactive power flow behaviour under dynamic grid conditions. -6+ years of experience working on utility-scale BESS projects. -Experience working with FATs, SIT/SAT, alarm management, and integrated controls.

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About Envision Energy

-It rapidly grew to operate global R&D centres—from Denmark to California—pioneering blade design, battery tech and IoT energy platforms. -The company installs and manages smart wind farms and energy systems worldwide, via its Wind OS and Apollo Solar OS. -It ventured into green hydrogen machinery and net-zero industrial parks, notably constructing Ordos (Inner Mongolia), the first fully off-grid renewable industrial cluster. -Strategic acquisitions shaped its battery business: Envision AESC works with partners like Nissan and Renault and is building gigafactories across China, Japan, Europe and the U.S. -On the global stage, it's hailed as a leading renewable-asset manager and owner of the 2023 Formula E Teams' Champion racing team. -Major investments include smart wind, storage and power-management across Asia, Europe and the Americas.

Sector Specialisms