Investment Associate - Energy Transition / Clean Energy Infrastructure - Macdonald & Company

Macdonald & Company is seeking an Investment Associate for its energy storage platform in Reading, UK. The role involves financial appraisal of Battery Energy Storage projects, financial modeling, and transaction processes. Candidates should have 5+ years in a related field, strong financial modeling skills, and a proactive mindset. The position follows a hybrid model, requiring approximately 3 days in the office weekly.
A fast-growing, well-capitalised UK energy storage platform is seeking an Investment Associate to join its team in Reading.
The business is an established Independent Power Producer focused on the acquisition, development and operation of standalone Battery Energy Storage (BESS) assets across Great Britain. With a substantial operational and under-construction portfolio and a strong secured pipeline, the platform is executing an ambitious growth strategy to become a leading player in the UK BESS market over the next five years.
Backed by an international renewable energy group with a multi-GW global portfolio, the company offers a dynamic, entrepreneurial environment with institutional-grade governance and processes.

The Role
Reporting to senior leadership, the Investment Associate will be responsible for the commercial and financial appraisal of a growing portfolio of BESS projects.
The role combines hands-on financial modelling with full lifecycle transaction exposure, including origination, screening, due diligence, acquisitions and debt/equity finance raising. You will work closely with technical, commercial and legal teams to evaluate opportunities and drive value creation across both existing assets and new investments.
This is a high-impact position offering meaningful responsibility and direct exposure to senior decision-makers.

Key Responsibilities
• Take ownership of financial models for operating assets and new investment opportunities, ensuring alignment with best-practice modelling standards
• Build and maintain robust DCF-based models incorporating key BESS value drivers (e.g. degradation curves, efficiency assumptions, flexibility market forecasts)
• Support origination and early-stage screening of new investment opportunities
• Manage and review outputs from third-party technical, commercial and market advisors, integrating findings into financial models
• Support due diligence processes and oversee external advisors where required
• Prepare and contribute to investment committee and board materials
• Participate in acquisition processes and debt/equity financing at both project (SPV) and platform level
• Contribute to negotiation and execution of acquisition, financing and project documentation

Candidate Profile
• Minimum 5 years’ professional experience in a transaction-focused environment (investment, advisory, infrastructure, energy, or related sectors)
• Relevant professional qualification (e.g. ACA, ACCA, CFA, CIMA) is seen as an advantage
• Strong financial modelling and valuation expertise (advanced DCF capability essential)
• Advanced Excel and financial modelling skills
• Experience supporting A–Z transaction processes, including due diligence and contract negotiations
• Highly analytical, commercially astute and detail-oriented
• Ability to manage large volumes of information and distil key risks and insights
• Proactive, self-starter mindset suited to a growing, entrepreneurial platform
• Prior knowledge of the UK renewables or storage sector desirable but not essential

Location & Working Model
• Reading, Berkshire (c.20 minutes from London Paddington; office located adjacent to main station)
• Hybrid model – approximately 3 days per week in the office once established