BESS Associate - Battery Energy Storage Systems

Become a BESS Associate with Matrix Renewables in the UK, focusing on battery energy storage systems. Engage in technical and analytical tasks, from feasibility studies to performance optimization. Enjoy the chance to work in a dynamic international environment and contribute to the renewable energy transition. Join Matrix Renewables as a Battery Energy Storage Systems (BESS) Associate in the United Kingdom. In this role, you will support the technical, analytical, and operational aspects of BESS projects, collaborating with project developers and engineers. Key responsibilities include developing battery system models, overseeing commissioning, and providing technical input for investment cases. This is a fantastic opportunity to work in a fast-paced international environment and contribute to the renewable energy sector.

Matrix Renewables United Kingdom Flexible Full Time UTC+00:00

Matrix Renewables

Company Overview

Name

Matrix Renewables

Headquarters

Madrid, Spain

Founded

2020

Size

The company has approximately 200 employees (source: cbinsights.com). Revenue has not been publicly disclosed as it is a private company backed by TPG's The Rise Fund.

What They Do

Matrix Renewables specializes in photovoltaic (PV) solar energy projects, as well as energy storage, wind power generation, and green hydrogen production. The company manages a secured portfolio of 2,475 MW under power purchase agreements (PPAs) with an average tenor of 10 years, and owns a core portfolio of 4 GW, in addition to a broader portfolio exceeding 15.5 GW, which includes battery energy storage systems (BESS) and green hydrogen initiatives (source: matrixrenewables.com). Their services cover the entire project lifecycle, from site identification and development to financing, construction, and long-term operation of renewable assets, targeting utilities, corporations, and financial institutions as clients through long-term PPAs.

Projects and Track Record

Among the highlighted projects of Matrix Renewables is the 50 MW solar plant in Jaén, Spain, which reached full operation in the second half of 2022 under a 10-year PPA with Statkraft (source: matrixrenewables.com). Also, the Pleasant Valley Solar 1 project of 261 MW DC (200 MW AC) in Ada County, Idaho, USA, which was commissioned in 2025 under a PPA with Meta through Idaho Power, marking the largest operational solar installation in the Idaho Power system (source: cbinsights.com). Additionally, the Gaskell project, which combines solar and storage, represents their first entry into the U.S. market (source: matrixrenewables.com).

Recent Developments

In the past two years, Matrix Renewables achieved commercial operation date (COD) for Pleasant Valley Solar 1 in Idaho in 2025 (source: cbinsights.com). They also launched Hyren in 2024 to lead their green hydrogen strategy (source: matrixrenewables.com). The company executed $650 million in corporate debt facilities (source: matrixrenewables.com) and secured power purchase agreements with Merck, Hyundai, Idaho Power/Meta, Amazon, EDP, Centrica, and Volkswagen (source: matrixrenewables.com). They also won capacity in Italy's FER-1 auctions for three PV projects (source: matrixrenewables.com).

Working There

Matrix Renewables emphasizes a specifically designed team of experienced professionals managing development, markets, mergers and acquisitions, financing, and operations in their global offices, especially in Madrid, where development and M&A roles are located (source: matrixrenewables.com). Active hiring is suggested in growing markets such as the U.S., Italy, and Spain, with leadership roles like Chris Matthews as MD for Development and Markets (source: matrixrenewables.com). The company culture is based on collaboration across technologies and geographies, integrity in project delivery, and a focus on efficient and high-value execution as a preferred partner for corporations and utilities (source: matrixrenewables.com).

Contact

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Last updated on 2025-12-27 | Report an issue

Matrix Renewables is a renewable energy platform that was founded by global alternative asset manager TPG through its impact investing platform, TPG Rise, in 2020. Headquartered in Madrid, Matrix Renewables focuses on developing, constructing and being long-term owners of renewable energy assets.

Matrix Renewables' current portfolio is comprised of 15.7 GW (operational, under construction, ready to build, under development) of renewable energy projects and storage across North America, Europe and Latin America.

TPG impact-investing platform is a $27 billion impact investing platform focused on investing in and supporting the growth of world-class businesses that deliver positive and measurable social and environmental impact globally.

TPG is a leading global alternative asset investment firm with offices in Austin, Beijing, Boston, Dallas, Fort Worth, Hong Kong, Houston, London, Luxembourg, Melbourne, Moscow, Mumbai, New York, San Francisco, Seoul, Singapore, and Washington D.C. TPG's investment platforms span a wide range of asset classes, including private equity, growth equity, impact investing, infrastructure, growth venture, real estate, secondaries, and public equity.

The Role

At Matrix Renewables we are seeking an experienced Battery Energy Storage Systems (BESS) Associate to join our growing Energy Storage team. The successful candidate will play a key role in the technical, analytical, and operational aspects of BESS projects - from early-stage feasibility and modelling to commissioning and performance optimization.

You will work closely with project developers, engineers, and financial analysts to evaluate and implement cutting-edge battery storage and energy solutions supporting the energy transition to a low-carbon energy system.

This is a great opportunity for someone looking to be involved in the full setup of a company, work in an international, fast-paced environment, and contribute to the renewable energy sector.

Key activities and responsibilities

Technical & Analytical

Develop and maintain battery system models (electrical, thermal, and economic).
Conduct performance simulations, degradation analysis, and techno-economic assessments for utility-scale projects.
Evaluate different battery chemistries and configurations and advise on system design
Support grid connection studies, dynamic modelling, and integration with renewable generation assets (solar, wind).
Work with different and innovative technologies related to renewables and energy storage

Project Execution & Commissioning

Oversee and coordinate system commissioning and acceptance testing.
Validate performance data and ensure systems meet functional and safety standards (G99, IEC, IEEE).
Liaise with EPC contractors, OEMs, and integrators to resolve technical issues during installation and start-up.
Support root-cause analysis and optimization of operational BESS assets.

Commercial & Strategic

Provide technical input into investment cases, RFPs, and due diligence processes.
Work with commercial teams to optimize revenue streams across energy trading, frequency response, and capacity markets.
Track technology trends and supplier developments in the global BESS sector.
Contribute to internal knowledge sharing and best practices for BESS deployment.

Qualifications & Experience

Essential

Degree in Electrical or Chemical Engineering, Energy Systems, Physics, or related field.
3-7+ years of professional experience in battery energy storage systems (design, modelling, or commissioning).
Proven ability to model and analyse BESS performance using simulation and data analytics tools.
Experience with battery management systems (BMS), power conversion systems (PCS), and control strategies.
Strong understanding of grid codes (G99/G100) and connection processes.
Excellent communication and stakeholder management skills.

Desirable

Knowledge in new technologies, green hydrogen, interconnections, etc.
Experience with SCADA systems, EMS software, or real-time monitoring platforms.
Knowledge of Python / MATLAB / PowerFactory / PSCAD / DIgSILENT.
Familiarity with lifecycle cost analysis and asset performance benchmarking.