System Engineer, Energy Storage & Optimization

Fareham, PO16
Jan 10, 2022
Jan 19, 2022
Energy Engineering
Position Type
Engineer, Staff Engineer
Organization Type
Firm, Consulting Engineering
Wärtsilä is leading the transition towards a 100% renewable energy future. We Wärtsilians help our customers unlock the value of energy transition by optimizing their energy systems and future-proofing their assets. Did you know Wärtsilä has delivered 73 GW of power plant capacity in 180 countries around the world, including 80 energy storage systems?

In this era of innovation and fast changing world of energy, we are constantly on the lookout for future-oriented talent to join our team and to work towards enabling sustainable societies with smart technology - together. Want to join the ride?

The position of System Engineer (SE) will be part the growing Project Delivery Team and report to Manager of Project Delivery. The SE is responsible to oversee the Project Design (Electrical Design Package, Communication, and minor Software), Commissioning, and Technical Support of AC and DC electrical systems associated with utility-scale Battery Energy Storage Systems (BESS).

Applicant should have a solid understanding of fundamental electrical engineering, project management and construction principals, as well as experience designing high power electrical systems. This position will be a member of Wartsila's internal and customer technical Subject Matter Expert Team for Energy Storage System (ESS) Products and Projects and will work closely with the following group: Software Delivery, Product Delivery, Project Management, Commissioning Manager and other various groups to ensure ESS projects fulfill customer functionality and contract requirements.

This position shall report to the Manager, Africa & EU Project Delivery Team. The location for the position is in the UK, Fareham Wärtsilä offices. Possibility to work partially or fully remote can be negotiated.

As System Engineer (SE) you will focus on these responsibilities:

  • Collaborates with the relevant team in the preparation and coordination of projects technical materials
  • Establish and maintain the engineering, design criteria and applicable standards and specifications for the ESS project
  • Interface with external product vendors to understand the specification(s) and function(s) of their product(s) and service(s); and determine which product(s) are best suited for exact ESS applications and functionalities
  • Specify appropriate system components, calculate component ratings and quantities, and create detailed bills-of material for energy storage projects
  • Review detailed electrical plans produced by others and provide precise organized feedback in a timely manner
  • Review project technical specifications and provide feedback to ensure that project requirements will be met
  • Responsible for revising existing electrical drawings in Solidworks, AutoCAD, or AutoCAD Electrical from explicit verbal or written instructions from senior engineers
  • Collaborates with the relevant team to response to RFP/RFQ regarding plant integrator, equipment and technology selection
  • Perform site visits and ESS field inspection in advance to check any risks from engineering side.
  • When need the ability to preform remote or onsite Commissioning and Troubleshooting
  • Tier 2 project technical support for internal and external stakeholders

As an ideal candidate, you have the following skills:

  • Education: Minimum Bachelors or Master's degree in Electrical or Power Engineering, or equivalent work experience
  • 5 years' experience with renewable energy (Solar Utility Scale) and/or Energy Storage System, Power System Design, Communication Network, and minor Software.
  • Ability to travel to domestic and international project sites and/or vendors (Approx. 10 - 25%).

In addition the below willl enable you to shine in this role:

  • Familiar with lithium ion battery
  • Familiar with relevant codes and standards for ESS and inverters (BS, EN, IEC, NEC, NFPA, UL, IBC, IFC)
  • Excellent verbal and written communication skills, including ability to effectively communicate highly complex engineering, construction and operational issues
  • Experience and understand in CAD drawing
  • 25% travel via plane and/or automobile required
  • Experience with utility scale energy storage and renewable energy projects and products (bi-directional inverters, various battery chemistries, PV, wind turbines, flywheels, etc.).
  • Understanding of Inverter, Converter, Transformer, Battery, Circuit breaker, Fuse, AC/DC power supply electrical equipment.
  • Understanding of utility generation project engineering, construction, and commissioning practices.
  • Applicant should be able to explain in detail the electrical principals of voltage, current, power, energy, charge, resistance, inductance, capacitance, DC voltage, AC voltage, single-phase, and three-phase power and other fundamental electrical engineering concepts.
  • Applicant should be able to read and understand drawings of electrical controls for industrial automation, switchgear control and protection, involvement with medium voltage equipment and networks schematics. Especially single-line, three-line, fire safety systems, and communication diagrams.
  • Knowledge of multimeters, oscilloscopes power quality analysis, harmonics and their operation.
  • Ability to configure and troubleshoot programmable logic controllers (PLC) and industrial electronic equipment (protection relays, inverters, BMS, etc.).
  • Experience with industrial control methods and SCADA systems.

Why you and us:

We at Wärtsilä believe in empowerment, ownership and taking responsibility of our work. We support each other's growth and co-creation is the true basis of our innovation. We have courage to see opportunities and take initiative.
We are authentic and honest, and we strongly believe in a diverse and inclusive work community where everyone can be their true self. We don't always get it right the first time, and if mistakes are made, we make sure to learn and grow from them. We want everyone to voice their opinions freely. That is why we have built an environment that empowers you and everyone around you, and where you can feel safe and cared for.

Are you eager to be part of this ambition?

You will be a part of a global organization with local presence and work in an exciting and dynamic working environment with highly motivated and skilled co-workers. We offer interesting and challenging work tasks, as well as personal and professional development in a great team.

Contact person to give more information:
Thomas Pellas (
Manager Project Delivery Team, EU & Africa
Energy Storage & Optimisation
Wärtsilä Finland Oy - Energy Solutions

Please apply by 16th of January, 2022 at 23:59 EEST. Our recruiting tool recognizes the time zone where the job ad has been published and closes the application period according to same time zone.



At Wärtsilä we value, respect and embrace all our differences, and are committed to diversity, inclusion and equal employment opportunities; everyone can be their true self and succeed based on their job-relevant merits and abilities.

All new Wärtsilä employees in Finland will attend occupational health check, including the drug test/screening. The legislation of the country followed when person is located outside of Finland.

This is Wärtsilä

Wärtsilä Energy leads the transition towards a 100% renewable energy future. We help our customers unlock the value of the energy transition by optimising their energy systems and future-proofing their assets. Our offering comprises flexible power plants, energy management systems, and storage, as well as lifecycle services that ensure increased efficiency and guaranteed performance. Wärtsilä has delivered 73 GW of power plant capacity in 180 countries around the world.

Wärtsilä is a global leader in smart technologies and complete lifecycle solutions for the marine and energy markets. By emphasising sustainable innovation, total efficiency and data analytics, Wärtsilä maximises the environmental and economic performance of the vessels and power plants of its customers. In 2020, Wärtsilä's net sales totalled EUR 4.6 billion with approximately 18,000 employees. The company has operations in over 200 locations in more than 70 countries around the world. Wärtsilä is listed on Nasdaq Helsinki. Find out more at .