Fareham, GB

Function:  Service Delivery
Job Category:  Support Functions

Battery Energy Storage Systems Field Service Engineer

Energy Storage Systems Field Service Engineer


Wärtsilä Energy Storage & Optimization (ES&O) is the leading global energy storage optimizer. Our mission is to deliver integrated energy solutions that build a resilient, intelligent, and flexible energy infrastructure - unlocking the way to an optimized renewable future. By integrating renewables, energy management technology, and storage with traditional energy resources, we reinvent clean energy production from the largest and most complex grids to the most remote and essential microgrids. We play a key role in Wärtsilä’s vision towards a 100% renewable energy future through flexibility, reliability, and integration for a more sustainable world for us all.


The position of Battery Energy Storage Systems Field Service Engineer will be part the growing Field Service Delivery Team within the Energy Business – Energy Storage & Optimization, Lifecycle Services. The applicant should have a solid understanding of fundamental electrical engineering, project management and construction principals, as well, as experience in high power electrical systems


The Wärtsilä Energy Business – ES&O team has a vacancy for a Battery Energy Storage Systems Field Service Engineer – Energy Storage and Optimization.


The preferred location for this role is Fareham, UK.


What Will You Be Doing as a Service Engineer – Energy Storage and Optimization, you will focus on these responsibilities:

  • Perform field service activities according to the agreement needs and work plan.
  • Support on commission of stationary battery energy storage systems and related equipment.
  • Solve technical and operational problems at our customer installations as well as report and propose product improvement needs to reach quality and cost targets and ensure customer satisfaction.
  • Manage and maintain good relationships with the customer.
  • Prepare and present analytical reports with adequate conclusions and recommendations for how to solve technical problems of the customer as required.
  • Participate in customer meetings as local technical advisor when needed.
  • Create service work reports and other relevant documentation related to site or customer visits.
  • Be on service jobs about 50% minimum of the year


To be successful in this role, we expect you to have the following:


  • Masters’ or Bachelors’ degree in Electrical Engineering or equivalent work experience
  • Must have valid local electrical license working unsupervised. Understand and adhere to electrical safety codes and regulations.
  • Must be based in Fareham or willing to relocate.
  • Relocation is not applicable for internal employees.


Desired Skills And Experience

  • 2-4 years’ experience with energy storage systems and/or renewable energy, power systems design and communication networks


In-dept knowledge of:

  • PV Systems
  • OPC systems
  • Variable frequency drives
  • Battery and inverter technology
  • Windows server and UNIX/LINUX
  • PLC systems
  • Industrial networks and protocols (Modbus TCP, Profibus, CAN-bus, CIP, ethernet/IP, ControlNET, etc.)
  • Advance programming of firewalls and routers
  • Protection relays
  • Familiar with NEMA and IP enclosure designs


Additional Skills:

  • Detail oriented with a project management mindset
  • Good collaboration skills
  • Excellent report writing skills
  • Excellent verbal and written communication skills
  • Commissioning experience


Physical & Mental/Reasoning Demands: These are physical and mental requirements of the position as it is typically performed. Inability to meet one or more of these physical or mental requirements will not automatically disqualify a candidate or associate from the position. Upon request for a reasonable accommodation, the Company may be able to adjust or excuse one or more of these requirements, depending on the requirement, the essential functions to which it relates, and the proposed accommodation.

  • Vision: Close; Distance; Depth
  • Color Perception (Red, Green, Amber)
  • Hearing/Listening
  • Clear Speech
  • Touching: Dexterity; Hand; Finger
  • Ability to Mount and Dismount Forklift/Truck
  • Pushing/Pulling/Stoop/Kneel/Crouch or Crawl
  • Lifting: 45 Pounds; 5 Times per shift
  • Carrying: 25 Pounds; 5 Times per shift
  • Driving (local/over the road)
  • Bend/Squat/Sit and Stand for a prolonged period of time
  • Climbing / Balance


Work Environment: The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

  • Works Alone / Works with Others
  • Verbal Contact w/Others; Face-to-Face Contact
  • Inside / Outside
  • Extreme Heat / Extreme Cold
  • Noise
  • Mechanical Equipment
  • Electrical Equipment
  • Pressurized Equipment
  • Moving Objects
  • High Places
  • Fumes/Odors
  • Hazardous Materials
  • Dirt Dust



Why you and us


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.


If you feel excited by being a part of this working environment and think your personal skills and qualities match the job requirements, we look forward to receiving your job application.


We look forward to hearing from you. Qualified candidates must apply online: https://www.wartsila.com/careers . Individuals hired for positions that require on-site customer interactions and/or in-person travel may be required to be fully vaccinated against COVID-19 or other country-specific vaccinations, unless otherwise prohibited by law. Wärtsilä values our employees. We offer a competitive salary and comprehensive benefits package.


Last application date: 28/06/2024 


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. 


This is Wärtsilä 

Wärtsilä is a global leader in innovative technologies and lifecycle solutions for the marine and energy markets. Our team of 17,800 professionals, in more than 280 locations in 79 countries, shape the decarbonisation transformation of our industries across the globe. Read more on www.wartsila.com