Investment Director
BW Energy Storage Systems
Company Overview
BW Energy Storage Systems, a subsidiary of BW Group
Singapore
2020
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).
Last updated on Feb 23, 2026 | Report an issue
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, Spain, and Sweden. It has more than 540MWh of operating BESS projects, with ~5GWh under construction and a development pipeline of ~9.3GW. 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 - and the scale and connections needed to move the needle in global energy storage.
To find out more, visit: https://bw-ess.com/
How We Work
BW ESS culture and way of working is based on few clear foundations:
- talent density over team size,
- flexible people over fixed structures,
- context over control,
- results over processes,
- transparent and clear feedback.
We move fast because our culture makes it possible - freedom empowers people to act quickly and decisively, while responsibility ensures those actions remain accountable and aligned with shared goals. Together, they create a culture where speed is balanced by discipline, and efficiency thrives on trust.
Role Overview
The Investment Director will play a pivotal role in shaping BW ESS's growth in Iberia. This senior position will lead all those workstreams to ensure that projects reach FID, will manage Project Delivery in conjunction with our Operations and Revenue teams and manage high-level relationships with key stakeholders. Working closely with the Senior Leadership Team the Investment Director will ensure disciplined capital allocation, value creation, and alignment with BW ESS's long-term strategy.
Key Responsibilities
Development & Financing
- Lead the transition of projects from RTB to FID, ensuring robust development package, bankable contracts and commercial strategies are in place.
- Co-Lead financing processes, managing negotiations with domestic and international lenders, investors, and advisors in conjunction with our Finance Team and Executive Directors.
Commercial & Contracts
- Lead negotiation and management of key commercial agreements, including PPAs, EPC contracts, and O&M service agreements in conjunction with our Engineering, Operations and Revenue Team.
- Provide strategic input into contract structuring to ensure bankability, proper risk management, and long-term value creation.
- Work closely with development and legal teams to align commercial arrangements with investment objectives and financing processes.
- Managing relationships with local partners, including JVs and minority shareholders.
External Stakeholder Management
- On those projects lead by this role, act as the primary relationship manager with partners, institutions, financial institutions and major stakeholders to secure project success.
Leadership & Team Development
- Foster a culture of excellence, accountability, and commercial focus within the team.
- Collaborate with internal development, engineering, and commercial teams to align financial strategy with project delivery and execution.
Market & Strategic Insight
- Monitor energy market trends, policy shifts, and regulatory developments.
- Provide strategic market insight to inform BW ESS's pipeline strategy and portfolio optimisation.
- Integrate ESG considerations and risk management into all investment decision-making processes.
Candidate Profile
The ideal candidate will be a senior commercial professional with extensive experience in utility-scale renewable energy, particularly battery energy storage and/or solar projects. The candidate will have a proven track record in leading complex projects, bringing projects to FID, financing, and strategic investments, with a strong ability to deliver risk-adjusted returns and drive value creation.
They will be highly strategic, capable of engaging with senior executives, boards, investors, lenders, and external advisors, and able to lead / support with negotiations for major financing, PPA, EPC, and O&M contracts. A deep understanding of investment structuring, valuation methodologies, financial modelling, and portfolio analysis is essential, as is the ability to translate market and regulatory insights into commercial strategies.
The candidate will also demonstrate strong leadership and people management skills, with experience building, mentoring, and managing high-performing investment or finance teams. Excellent communication and stakeholder management abilities are required, with the capacity to influence and collaborate across internal and external parties.
Desired attributes include:
- Significant experience in the Iberian Market and understanding of regulatory, market, and ESG considerations that affect investment outcomes.
- Real experience in the BESS Market within development, financing and/or construction.
Other:
- This role will be based in Madrid BW ESS Office, but candidates based in locations where BW ESS office are located can be considered.
- Candidate must be fluent in Spanish and English. Other language will be desirable.
- Usual travelling within Spain and to Zurich is expected.
Apply now
Job expired?Please let BW Energy Storage Systems know you found this job on Rejobs. This will help us grow and get more people to work on renewable energy!
Apply now
Job expired?Please let BW Energy Storage Systems know you found this job on Rejobs. This will help us grow and get more people to work on renewable energy!
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About the role
April 4, 2026
Full time
Company
- Madrid, Spain
Senior level with extensive experience in renewable energy
UTC+01:00