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BESS Asset Manager

Join BW Energy Storage Systems as a BESS Asset Manager in Berlin, Düsseldorf, or Hamburg. Manage the performance and commercial optimisation of utility-scale battery assets in Germany. Benefit from a dynamic role blending technical and market expertise with opportunities to influence Europe's energy storage future.

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BW ESS is looking for a BESS Asset Manager for Germany to take ownership of the performance, commercial optimisation, and operational management of our German battery energy storage assets.

This role is suited to someone with a blend of technical and commercial experience: a person who understands how utility-scale battery or power assets perform operationally, how they generate value in energy markets, and how to manage contracts, data, counterparties, and regulatory requirements across the full asset lifecycle.

We are especially interested in candidates with experience in utility-scale BESS, renewables, grid infrastructure, power markets, or energy asset management, ideally with exposure to the German energy market.

The Role

As BESS Asset Manager, you will be responsible for the operational and commercial performance of utility-scale battery assets in the German market, with potential exposure to a wider European portfolio.

You will work across asset performance, route-to-market optimisation, contract management, budgeting, warranty management, regulatory compliance, and site integration. You will collaborate closely with German and international colleagues, RTM providers, optimisers, OEMs, O&M contractors, EPCs, TSOs/DSOs, and other market counterparties.

The role sits at the intersection of technical asset management, commercial optimisation, energy markets, and regulation. You will help ensure BW ESS's German portfolio is positioned to perform across products such as FCR, aFRR, mFRR, intraday and day-ahead markets, and other relevant flexibility or capacity mechanisms.

Key Responsibilities

  • Manage and monitor the performance, availability, degradation, cycle counts, and operational health of utility-scale BESS assets.
  • Analyse SCADA, EMS, and asset data to identify underperformance, diagnose root causes, and coordinate corrective actions with technical teams and service providers.
  • Work with route-to-market providers and optimisers to monitor and improve commercial performance across German balancing and wholesale markets.
  • Support and oversee optimiser, O&M, OEM, EPC, and other service provider contracts, ensuring obligations and KPIs are met.
  • Review invoices, manage budget inputs, support OPEX/CAPEX tracking, and contribute to medium- and long-term cost and revenue forecasting.
  • Maintain warranty registers, monitor warranty periods, coordinate claims, and manage related documentation and stakeholder processes.
  • Support commissioning, control system setup, EMS/software integration, data validation, testing, and handover into operations.
  • Track relevant German and EU regulatory developments, including BNetzA, TSO/DSO requirements, EEX, grid codes, and market rule changes.

Experience We're Looking For

We are looking for candidates who can bring both technical credibility and commercial judgement.

You should ideally have:

  • 3+ years' experience in utility-scale BESS, renewables, grid infrastructure, power generation, energy asset management, or a closely related field.
  • Experience managing or supporting operational energy assets, ideally in Germany or another European power market.
  • Understanding of battery systems, lithium-ion technology, inverters, BMS, EMS/SCADA, grid connections, and asset performance metrics.
  • Commercial exposure to energy markets, route-to-market arrangements, optimisation, balancing markets, intraday/day-ahead trading, or asset revenue management.
  • Familiarity with German energy market structures, TSOs, DSOs, BNetzA, EEX, grid codes, and ancillary service products would be highly valuable.
  • Experience working with data tools such as PowerBI, SQL, Excel, or similar platforms.
  • Strong contract management, reporting, stakeholder management, and problem-solving skills.
  • Excellent written and spoken German and English.

A degree in electrical engineering, energy systems, or a related technical or commercial discipline would be beneficial, but relevant hands-on experience is equally important.

Who This Role Is Best Suited To

This role may suit someone currently working as a:

  • BESS Asset Manager
  • Renewable Energy Asset Manager
  • Energy Storage Operations Manager
  • Technical Asset Manager
  • Commercial Asset Manager
  • Optimisation or Route-to-Market Manager
  • Power Markets Analyst with asset exposure
  • Grid or flexibility market specialist

Why Join BW ESS?

This is an opportunity to join a fast-moving global energy storage owner-operator with a long-term ownership strategy and a growing European portfolio. You will play a key role in the success of BW ESS's German assets, working across the technical, operational, and commercial dimensions of one of Europe's most important energy storage markets.

If you have the right mix of technical asset knowledge, commercial energy market experience, and German market understanding, we would like to hear from you.

BW ESS is committed to building a high-performing, inclusive team and welcomes applications from candidates of all backgrounds.

Your personal information will be processed in accordance with our Recruitment Privacy Notice.

Typical pay for similar roles

Estimate
€42,150–79,000 annually
Mid level · Germany · 83 similar jobs

The middle half of pay advertised on Rejobs for this group over the last 24 months. This employer has not stated a salary.

About this role

Posted
22 Oct 2026
Updated
22 Oct 2026
Job type
Full time
Workplace
Hybrid
Sectors
Working hours
UTC+01:00
Experience
3+ years

About BW Energy Storage Systems

Company Overview

Name

BW Energy Storage Systems, a subsidiary of BW Group

Headquarters

Singapore

Founded

2020

Size

Approximately 30 employees (source: ess-news.com).

What They Do

BW Energy Storage Systems (BW ESS) specializes in battery energy storage systems (BESS), acting as a developer, owner, and operator of utility-scale projects that enhance energy market efficiency, integrate renewable energy sources, and stabilize electrical grids. The company focuses on large-scale BESS platforms that utilize advanced liquid-cooled technologies, such as Sungrow’s PowerTitan 2.0, which provide essential grid-forming capabilities including black start, millisecond inertia support, and frequency/voltage stabilization (source: bw-ess.com). These systems are designed for durations of up to 3.5 hours, enabling revenue generation through tolling agreements, frequency response, and energy arbitrage, particularly in deregulated energy markets across Europe and Australia (source: bw-group.com). BW ESS's strategic focus on long-term asset ownership rather than merchant sales allows it to serve grid operators, utilities, and energy traders effectively (source: bw-ess.com). The company leverages its backing from BW Group for funding and maritime expertise, which enhances its capacity for rapid project execution and innovative revenue models, positioning it as a leader in the energy storage sector (source: bw-group.com).

Projects & Track Record

As of early 2025, BW ESS boasts over 500MWh of operational BESS projects and more than 1GWh currently under construction, alongside a robust 7GW development pipeline (source: bw-group.com). A flagship project is the 100MW/331MWh Bramley BESS located near Bramley, Hampshire, UK, which became operational in early 2025, marking it as the largest battery energy storage system in the UK at that time and capable of powering approximately 44,000 homes daily (source: bw-group.com). Other significant projects include the Hams Hall site in the UK, which is currently under construction with a capacity of 1.4GWh, and the Berkswell site, which is at the ready-to-build stage (source: cbinsights.com). The company is also engaged in a 700MW/3.5-hour BESS portfolio in the UK, a 1.5GW collaboration with Zelos Energy in Germany, and multiple projects in Italy and Australia, significantly expanding its geographic footprint and operational capacity (source: bw-ess.com). Key clients include Shell Energy Europe, with whom they have a 7-year tolling agreement for the Bramley project, and partnerships with local developers to facilitate market entry (source: bw-group.com).

Recent Developments

In February 2025, BW ESS celebrated the inauguration of the 100MW/331MWh Bramley BESS, marking its first European project with Sungrow PowerTitan 2.0, under a groundbreaking 7-year tolling agreement with Shell Energy Europe established in 2024 (source: bw-group.com). In October 2024, the company made headlines by acquiring the remaining shares of Penso Power, thereby merging its team of nearly 30 specialists and adding a significant 2GW pipeline of projects in the UK and Australia, which contributed to a total pipeline of 5GW (source: ess-news.com). Additionally, BW ESS secured a 1.4GWh supply deal with Sungrow for the Hams Hall project and advanced joint projects in the UK and Italy (source: cbinsights.com). Recent announcements in 2025 included AIP Management acquiring a 49% stake in a 700MW/3.5-hour UK BESS portfolio and a collaboration with Zelos Energy Developments for a 1.5GW project in Germany (source: bw-ess.com). The Bramley project has been recognized as a significant milestone for enhancing UK grid resilience (source: bw-group.com).

Working There

BW ESS is actively hiring across various roles including project development, engineering, commercial operations, and business development, particularly following the integration of Penso Power in 2024, which enhanced their team with specialists focused on delivery and market entry (source: ess-news.com). The company is focusing its recruitment efforts on project sites in the UK, Australia, Italy, Germany, and Sweden, with a global team of nearly 30 supporting its multi-market expansion (source: bw-group.com). The culture at BW ESS is characterized by close-knit collaboration, as highlighted by CEO Erik Strømsø, who refers to the Penso teams as "trusted colleagues," fostering synergies in a fast-paced environment that navigates complex grid codes and local strategies (source: youtube.com). While specific benefits such as salaries or perks are not publicly documented, the long-term owner-operator model suggests a degree of stability tied to BW Group's extensive infrastructure expertise (source: bw-ess.com). Job seekers are encouraged to monitor LinkedIn for openings in Singapore and Europe as the company scales its operations to meet growing demand (source: linkedin.com).

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