Photovoltaic & Battery Energy Storage System Expert (m/w/d)

ILF Consulting Engineers in Germany; Fontainebleau; On-site; EUR 65,000 - 90,000; Full time

Job summary

ILF Consulting Engineers in Fontainebleau / Paris is seeking a Photovoltaic & Battery Energy Storage Systems expert to support international finance institutions, utilities and private clients on large-scale renewables projects.

You will lead feasibility studies, prepare technical specifications, evaluate EPC/IPP bids, supervise construction and stay aligned with market trends, while collaborating across teams and developing new opportunities.

Qualifications

• Degree in energy, electrical engineering or similar with focus on Energy Storage Systems (ESS) / Renewable Energies / Photovoltaics.
• 0–3 years of experience in Power Systems modelling, Battery Systems and VRE generation, with strong battery systems knowledge.
• Experience with PV design tools and energy storage simulation software is preferred.
• Proficiency in English and French (written and spoken) is essential.
• Strong summarizing and teamwork abilities.

Responsibilities

• Operate as a PV & BESS expert to international institutions, utilities, clients and developers.
• Participate in feasibility studies covering technology reviews, CAPEX/OPEX estimates, and preliminary system design.
• Write PV & BESS technical specifications, evaluate EPC/IPP bids, and vet designs before construction.
• Supervise construction and commissioning of energy projects and stay informed on market trends.
• Support development teams in pursuing new projects.

Skills

Energy storage systems

Power systems modelling

Battery systems

Python

French & English

PPA & EPC contracts

Education

Electrical engineering or energy field

Tools

PVSyst

HOMER PRO

PLEXOS

AutoCAD 3D

PVDesign / PV-CAD

Power Factory

PSSE

Job description

The ILF Solar Photovoltaic & hybrid systems team works across a vast range of large-scale renewables projects and programs, both grid connected and off-grid across private and public sectors globally. We offer you to join a dynamic environment and to work on unique and exciting projects (including floating PV, complex hybrid systems, combination with Hydrogen, rural electrification, etc.).

Join our Team in Fontainebleau / Paris to contribute to the transition toward a decarbonized and sustainable energy future!

YOUR RESPONSIBILITIES:

• You will operate as a Photovoltaic & Battery Energy Storage System (BESS) Expert to International Finance Institutions (AFD, KfW, World Bank, EBRD, EIB, etc.), national power utilities, major private clients as well as project developers.
• During development phase of the projects, you will participate to Feasibility work related to technology review attributes across storage technologies, system sizing CAPEX and OPEX estimation, conceptual system design and layout.
• During implementation phase, you will be in charge of writing the PV & BESS Technical Specifications (tender design), evaluating EPC/IPP offers, reviewing and validating the executive design before construction (design vetting). Your will also be involved in the supervision of the construction and commissioning of the power plants.
• As an interface between suppliers, EPC contractors and clients you keep up to date with and pass on market trends, new products, standards and simulation models.
• You will occasionally support our development teams in acquiring new projects

YOUR QUALIFICATIONS:

• Graduated in the field of energy, electrical engineering or similar with a focus on Energy Storage Systems (ESS) / Renewable Energies / Photovoltaics.
• 0 to 3 years of experience in Power Systems (Modelling), Battery Systems, and Variable Renewable Energy (VRE) generation, combined with a very good technical understanding of battery systems and energy storage simulation programs. Expertise in Wind and Green Hydrogen projects would be a plus.
• Expertise with PVSyst, HOMER PRO, PLEXOS, AutoCAD 3D, PVDesign / PV-CAD and/or power system analysis software (Power Factory, PSSE)
• Good command of MS office tools. Programming skills (Python,VBA) are an advantage
• Understanding of technical aspects of PPA and EPC contracts regarding performance and penalties is an advantage.
• Perfect command of English and French (written and spoken) is indispensable.
• writing skills and a knack for summarizing information
• You are a team player, curious, proactive and autonomous in your work

91% of our employees agree with the statement that ILF is a “great place to work” in Germany:

• Friendly corporate culture and diversity: Many local but also national live events characterize our cooperation, and the majority of employees are on a first-name basis. We are particularly proud of the internationality of our team with more than 30 different nationalities.
• Modern working environment: as a medium-sized family business, our corporate culture is characterized by non-bureaucratic dynamics and flat, collaborative hierarchies. We combine a strong engineering tradition spanning over 50 years with innovative approaches and the latest technologies. We share company profits with our employees, reward employee recommendations and publications of technical articles, honor outstanding projects with awards of excellence, offer discounted luncheon vouchers. We offer mobile and flexible working arrangements to suit every employee.
• Development and networking: We plan annual training budgets for all employees, which can be used for external offerings (e.g. Udemy) and our internal ILF Academy. In addition, the possibility of new or expanded areas of responsibility is discussed in regular feedback meetings on request. Our junior employees meet regularly in the Young Engineers Club.
• Be part of a big vision: We aspire to be a major player in the energy transition, environmental protection and improving quality of life for all.
• Development and networking: We provide annual training budgets for all employees, which can be used for external offerings (e.g. Udemy) and for our internal ILF-Academy. In addition, during regular feedback interviews, we discuss the possibility of obtaining new or extended responsibilities, if you so wish. Our young recruits meet regularly in the Young Engineers' Club.
• Internationality & Variety: We are part of the ILF Group, which is run by its founding families and comprises over 45 offices and more than 3,700 employees, and we work on both national and international projects with diverse teams from over 30 countries.

Your contact person:

Pauline Sittinger ([phone])