BESS Asset Manager

JR United Kingdom; London; On-site; GBP 60,000 - 80,000; Full time

Job summary

A leading energy storage company is seeking a Battery Energy Storage System (BESS) Asset Manager to oversee the performance and optimization of utility-scale battery assets globally. The role involves collaboration with engineering and commercial teams, ensuring assets deliver maximum value and uptime. Candidates should have a background in electrical engineering or energy systems, along with experience in managing power assets. Strong analytical and communication skills are essential for success in this dynamic environment.

Qualifications

• 3+ years of experience managing utility-scale BESS or similar power assets.
• Strong understanding of battery technologies and power electronics.

Responsibilities

• Oversee performance, optimization, and health of utility-scale battery assets.
• Monitor SCADA and EMS data for performance tracking and reporting.
• Manage warranty claims and coordinate with OEMs and contractors.

Skills

Analytical mindset

Communication

Problem solving

Collaboration

Education

Bachelor’s degree in Electrical Engineering

Bachelor’s degree in Energy Systems

Tools

PowerBI

SQL

Excel

Job description

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BW ESS is a global energy storage owner-operator, moving with speed to develop and build market-leading energy storage projects across multiple countries.

Typically working with local development partners, the business is active in the UK, Australia, Italy, Germany, and Sweden. It has more than 500MWh of operating BESS projects, with over 1GWh under construction and a development pipeline of about 7GW.

BW ESS has a strategy to hold assets for the long-term, taking a hands-on approach to unlock value throughout the energy storage asset lifecycle.

Part of BW Group, BW ESS can leverage a global industry network, as well as decades of experience in energy infrastructure investment, delivery, and operation. To find out more, visit: https://bw-ess.com/

About the Role:

As our Battery Energy Storage System (BESS) Asset Manager, you will oversee the end-to-end performance, commercial optimization, and operational health of utility-scale battery assets globally. You’ll collaborate closely with in-country and remote engineering, commercial, and field teams to ensure our assets deliver maximum value and uptime.

1. Asset Performance Monitoring & Reporting:

• Real-time performance tracking: Monitor SCADA and EMS data to validate system performance, cycle counts, degradation metrics, and ensure portfolio is operating against agreed KPIs.
• Performance analysis: Identify under-performing assets, diagnose root causes (e.g., voltage spreads, SoC drift) and coordinate corrective action with in-country technical and OEM teams.
• Reporting: Produce portfolio performance reports for internal stakeholders and investors, utilising big-data to make key operational decisions.
• Benchmarking: Compare asset & commercial metrics against market participants and industry standards to drive operational and commercial improvements.

2. Warranty Tracking:

• Warranty Management: Maintain a centralized register of all manufacturer and supplier warranties (cells, inverters, BMS, transformers, etc.), including start/end dates and coverage details.
• Claim management: Proactively monitor warranty periods and trigger claims for defects, performance shortfalls, or premature degradation. Manage Insurance processes where needed
• Coordination: Liaise with OEMs/O&Ms, EPC contractors, and legal to submit required documentation, schedule inspections, and oversee remediation work.
• Reporting: Provide updates on warranty status, outstanding claims.

3. Route to Market / Optimiser Contract Management:

• Market participation: Work in partnership with Route to Market providers to optimise the trading strategy of our portfolio across multiple markets and regions.
• Contract oversight: Assist in discussions relating to optimiser contracts, ensuring performance obligations (e.g., minimum dispatch volumes, availability windows) are met.
• Regulatory compliance: Stay on top of local market rule changes within country and communicate to senior stakeholder and RTM partners ensuring bidding strategies are updated accordingly.
• Invoice validation: Review vendor and contractor invoices (O&M services, RTM etc) against contract terms, work orders, and performance milestones.
• Discrepancy resolution: Investigate billing discrepancies, review and negotiate adjustments as necessary

5. Site Setup (Software/Hardware):

• Commissioning support: Oversee installation and configuration of control systems and energy management software
• Integration: Ensure seamless interfacing between on-site hardware (battery modules, inverters, transformers) and cloud-based monitoring platforms.
• Testing & validation: Review Market Compliance testing, data integrity checks, and managed cybersecurity procedures where needed.
• Handover: Develop standard operating procedures (SOPs), training materials, and run-books for handover to O&M teams.

Experience & Competencies:

• Nice to have a Bachelor’s degree in Electrical Engineering, Energy Systems, or a related field.
• Ideally 3+ years of experience managing utility-scale BESS, or similar power assets.
• Strong understanding of battery technologies (Li-ion chemistries), power electronics, and grid standards.
• Experience interacting with SCADA/EMS platforms and data-analysis tools (PowerBI, SQL, Excel).
• Demonstrated contract management and stakeholder-engagement skills.
• Excellent written and verbal communication in English; proficiency in another European language is a plus.
• Analytical mindset with attention to detail and a proactive problem solver
• Collaborative team player and self-starter across commercial, technical, and field functions
• Adaptable to evolving market and regulatory environments