Portfolio FP&A Manager

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BW ESS

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London, United Kingdom

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BW ESS is a global energy storage owner-operator, moving with speed to develop, deliver and operate market-leading projects.


The business is active in the UK, Australia, Italy, Germany, Spain, and Sweden. It has more than 540MWh of operating Battery Energy Storage Systems (BESS), with ~11GWh under construction and a development pipeline of several gigawatts.


Part of BW Group, BW ESS builds on decades of global infrastructure experience, takes a long-term view of projects and partnerships, and focuses on unlocking value throughout the energy storage asset lifecycle.


To find out more, visit: https://bw-ess.com/


Role Description

BW ESS is seeking a Portfolio FP&A Manager to support its growing UK operating BESS portfolio. The role will focus on financial modelling, non-statutory reporting, valuation and treasury analysis, working closely with Asset Management to monitor performance and support value creation across the portfolio. The role reports to the Director of FP&A and Treasury.


1. Core Responsibilities


Reporting & analysis

  • Own recurring non-statutory reporting for UK operating assets
  • Prepare monthly and quarterly packs for management, board, shareholder and lender requirements
  • Produce variance analysis versus budget, forecast and investment case
  • Develop and maintain portfolio KPIs, dashboards and reporting tools
  • Translate high-volume, often unstructured operational and market data into clean, decision-ready outputs


Forecasting & analytics

  • Own and maintain financial models of operational assets, improving robustness, consistency and automation over time
  • Update financial models for actuals, revised forecasts and operational assumptions
  • Model and monitor debt covenant compliance, headroom and forward projections at asset and SPV level
  • Support periodic asset valuation and impairment test analysis of the UK portfolio
  • Support annual budgets and periodic reforecasts by coordinating model inputs and mechanics
  • Work closely with the Asset Management team to monitor operational and financial performance
  • Identify trends, risks and opportunities across the portfolio that support value creation
  • Coordinate operational, financial and commercial data from multiple stakeholders
  • Support asset-level cashflow forecasting and liquidity analysis


Treasury & capital support

  • Support distribution planning and modelling, working with the Director of FP&A and Treasury on portfolio-level treasury strategy and execution
  • Assist in liaison with banks and investors on reporting, covenant and information requests
  • Track debt service metrics, reserve accounts and distributions at asset level
  • Weekly, monthly, quarterly cash snapshots


Transactions support

  • Ad-hoc support financial due diligence for new M&A opportunities and disposals as required


Data & process management

  • Improve consistency and scalability of reporting and modelling processes
  • Ensure reporting outputs are accurate, timely and internally consistent
  • Apply scripting or AI-enabled tools to improve reporting efficiency and analytical depth
  • Work effectively in a fast-changing environment with evolving data structures and priorities


2. Required Skills & Experience

  • Finance qualification, such as ACA, ACCA, CIMA or equivalent
  • 3+ years' relevant experience with budgeting, forecasting, valuation, impairment or covenant analysis, and management/performance reporting including lender and shareholder reporting
  • Comfortable working with operational and financial datasets from multiple systems
  • Strong Excel and presentation skills, with an eye for clear, concise data presentation
  • Organised, detail-oriented and process-driven, able to manage multiple models and recurring deadlines in a dynamic environment
  • Able to communicate complex financial and operational information to technical and non-technical stakeholders in a simple and concise manner
  • Experience in one or more of: project finance, battery storage, infrastructure, energy, renewables


3. Nice to Have

  • Practical experience with at least one programming/scripting language for analysis or automation, such as Python, VBA, or with AI-enabled analysis tools
  • Experience with SQL, data platforms, APIs or other structured datasets
  • Familiarity with BI / dashboard tools, such as Power BI, Tableau or Looker
  • Exposure to M&A due diligence or transaction support
  • Demonstrated use of AI tools to improve reporting speed, accuracy or analytical depth


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 welcome applications from candidates of all backgrounds and experiences, and we are committed to an inclusive hiring process that supports equal opportunity.