Energy Storage System (ESS) Specialist

ZipRecruiter; London; On-site; GBP 50,000 - 70,000; Full time

Job summary

A leading company in renewable energy solutions is seeking a BESS Specialist in London. The role involves technical design and project management of battery energy storage systems, ensuring integration with systems and stakeholders. Candidates should have a degree in Electrical Engineering, extensive experience in BESS projects, and strong knowledge of battery technologies and UK compliance.

Qualifications

• 6+ years of experience working on utility-scale BESS projects.
• In-depth knowledge of battery technologies (LFP/NMC) and system-level design.
• Familiarity with UK grid compliance and commissioning processes.

Responsibilities

• Integration of battery DC system (BESS Skid) and EMS at the site.
• Leading technical design and project management of battery-based energy storage systems.
• Preparing integration test plans and conducting technical reviews.

Skills

Coordination

Stakeholder Management

Problem Solving

Education

Degree in Electrical Engineering, Power Systems or related discipline

Job description

Job Description

Job Title: BESS Specialist

Location: London (On-site)

Salary: Depends on experience

About Envision:

Envision Energy is a world-leading green technology company that provides renewable energy solutions for global enterprises, governments, and institutions. Encompassing three major business sectors - Smart Wind Turbines, Energy Storage, and Green Hydrogen Solutions, Envision Energy collaboratively constructs comprehensive solutions for energy transformation.

Envision Energy has received several accolades for its sustainability performance, including the EcoVadis Gold Medal and the CDP “A-List”. It was also recognized in Fortune's “Change the World” list and ranked among the top 10 smartest companies by the MIT Technology Review.

Today, Envision Energy leverages its global network of R&D and engineering centers across China, the United States, UK, France, Germany, Denmark, etc. to continuously lead global green technology development. Envision Energy joined the Science Based Targets initiative (SBTi) and committed to achieving the "Business Ambition for 1.5°C" in 2021. It has achieved carbon neutrality across its global operations by 2022 and will achieve carbon neutrality throughout its value chain by 2028.

Responsibilities:

1. Integration of battery DC system (BESS Skid), AC systems, and Energy Management Systems (EMS) at the site, ensuring a seamless integration of all components.
2. 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.
3. Preparing integration test plans for BESS systems and conducting technical reviews of relevant documents.
4. Coordinating with internal and external stakeholders for the design and integration of control systems, ensuring clear communication and alignment.
5. Being familiar with and applying codes, standards, and regulations relevant to the UK.
6. Driving technical innovation and supporting the technology roadmap for BESS products and systems.
7. Preparing electrical equipment specifications, data sheets, and bid evaluations to support procurement and ensure compliance.
8. Review of thermal management, fire suppression and safety controls in line with UL9540A and UK HSE / Fire Safety expectations.
9. Deep understanding of PCS technology, operations, fault contributions, inertia and reactive power flow behaviour under dynamic grid conditions.
10. Assist in technical risk identification and resolution through active participation in HAZID, HAZOP and design review workshops.
11. 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.

Qualification and expertise:

1. Degree in Electrical Engineering, Power Systems or related discipline.
2. 6+ years of experience working on utility-scale BESS projects.
3. In-depth knowledge of battery technologies (LFP/NMC), PCS functionality, protection, communication interfaces, and system-level design.
4. Familiarity with UK grid compliance (ENA G99) and commissioning processes.
5. Experience working with FATs, SIT/SAT, alarm management, and integrated controls.
6. Strong coordination, stakeholder management and problem-solving skills.