High Voltage Expert - HV Substations & HV Equipment (M/F)

Neoen is looking for a High Voltage expert to act as the company technical owner for HV substations and HV equipment used on our Solar, Wind, Storage and Datacenter power plants — from early design and permitting through procurement, construction, commissioning and operations. 

Key tasks include:  

• Develop and enhance the internal guidelines and technical specifications for HV substations (from 66 kV to 550 kV) and HV equipment (design, layout requirement)
• Define HV substation architecture and the redundancy level appropriate to each project: busbar configuration, N-1 criteria, transformer and protection duplication, redundancy of DC supplies, telecom and SCADA.
• Assist the Procurement teams in the following tasks : 

1. Write and review the technical specifications for HV power transformers and other HV equipment (Dead tank Breaker, GIS…); evaluate supplier offers and deviation lists; approve test plans; witness factory tests 
2. Assist in providing early-stage cost estimations 
3. Review, challenge and analyses of HV substation design submitted by contractor: design & cost optimizations layout and clearances, redundancy philosophy
4. Review and challenge the critical list of spare parts proposed by the suppliers
5. Support Design and/or Owner Engineers selection (Mastergrid, Elys, Aurecon, Aecom, GHD…) before or after contract signature

• Early-stage support to the Development Team :

1. Preliminary layout of the HV substation for prospection and permitting, 
2. Propose early-stage design philosophy and concepts
3. Review and advice on the interconnection options to connect to the Grid

• Support the Construction & Asset management teams : 

1. Audit substations under construction and in operation; issue prioritized findings to be shared with the construction teams
2. Review commissioning and energization readiness and procedure
3. Analysis of defects, failure and root-cause analysis including online monitoring tools of our HV Transformers

The candidate will need the following skills and experience to succeed in this role: 

• Bachelor’s or Master’s degree in Electrical Engineering, Power Systems or a related technical field.
• 5 years’ experience in design, engineering, construction, commissioning or operation of HV substations and equipment, ideally across voltage levels from 66 kV to 400 kV.
• Strong technical knowledge of HV substation architecture, including busbar configurations, redundancy philosophy, protection systems, DC supplies, telecom and SCADA.
• Proven ability to prepare and review technical specifications, designs, supplier offers, deviation lists, test plans and commissioning procedures for HV equipment.
• Experience with HV power transformers, circuit breakers, GIS and associated substation equipment, including factory acceptance testing and technical supplier evaluation.
• Ability to review and challenge contractor designs, identify cost and design optimisations, and assess critical spare-parts strategies.
• Experience supporting projects throughout the full lifecycle, from early-stage development and grid connection studies through construction, energisation and operations.
• Strong analytical and problem-solving skills, with experience in substation audits, defect analysis, failure investigations and root-cause analysis.
• Excellent communication and stakeholder-management skills, with the ability to collaborate effectively with Development, Procurement, Construction, Asset Management, contractors and external engineering consultants.
• Commitment to Neoen’s core values: team spirit, audacity, hard work and integrity.

Founded in 2008, and owned since April 2025 by Brookfield, Neoen is one of the world’s leading independent producers of exclusively renewable energy, with expertise in power generation – solar and onshore wind power – and storage. Neoen plays an active role in accelerating the energy transition of the countries where it operates by delivering clean, competitively-priced local energy. Neoen is a high-growth company: its capacity in operation or under construction has quadrupled over the last six years and now stands at 8.3 GW. We are aiming to deliver an additional 10 GW by 2030. Neoen operates near close to 200 assets across three continents. Its flagships include Western Downs Green Power Hub in Australia, comprised of the largest solar farm in the country (460 MWp) and Western Downs Battery (212 MW / 424 MWh); Collie Battery (219 MW / 877 MWh) one of the world’s most powerful large-scale storage systems; France’s most powerful solar farm (300 MWp) in Cestas; and Finland’s largest wind farm (404 MW) in Mutkalampi. For more information: www.neoen.com