Commissioning Engineer

Overview

Commission utility-scale solar farms, manage testing, grid connection, and documentation.

Key Responsibilities

• switchgear commissioning
• relay testing
• scada verification
• solar commissioning
• grid testing
• design review

Tasks

You will be responsible for the execution of Hot and Cold commissioning, which will include visual inspection, IR testing, wiring continuity /point to point check, CT/VT IR test, ductor test, secondary current injection test and possibly hipot test. Functional operation of switchgear to include interlocking. -Commission and operate HV and LV switchgear, including the operation of circuit breakers and measurement of CT/VT values. -Perform testing and configuration of protection relays, including fault analysis, settings verification, and final approval with the DNO. -Verify the correct operation of SCADA, metering, and communication systems during commissioning. -Lead and carry out the commissioning of utility-scale solar farms from initial testing through to grid connection and handover. -Ensure all work is completed safely and in accordance with company procedures and relevant standards. -Maintain accurate commissioning records, settings files, and test reports. -Execute G99 and G100 testing, ensuring compliance with grid code requirements. -Support and review electrical designs, contributing to design modifications or improvements where required. -Manage commissioning plans, schedules, and documentation to ensure full compliance with project and regulatory requirements. -Liaise with ICPs, DNOs, and grid operators to coordinate testing and approvals.

Requirements

• hv systems
• relay testing
• g99 testing
• electrical degree
• commissioning
• ecs/cscs

What You Bring

We’re looking for an experienced Commissioning Engineer to take ownership of the commissioning process for utility-scale solar projects. You’ll be responsible for managing, executing, and documenting all commissioning activities, ensuring safe, compliant, and efficient grid connection and operation of large-scale renewable energy systems. The role requires strong technical knowledge of HV systems up to 132kV, a solid understanding of protection systems, and hands-on experience delivering grid-connected solar projects. You’ll work closely with project engineers, ICP contractors, and local DNOs to bring each site online safely and on schedule. -Strong understanding of HV systems up to 132kV, including protection, control, and switching operations. -ECS/CSCS and HV/LV authorisations as appropriate for site work. -Certified experience or training in protection relay testing and configuration -Recognised HV operational authorisation (SAP or AP level) desirable. -Familiar with electrical design principles, single-line diagrams, and grid/electrical studies. -Excellent organisational and communication skills with a practical approach to problem solving. -Solid working knowledge of G99/G100 compliance testing. -Full UK driving licence. -Hands-on experience with protection relay configuration and testing (e.g., Micom, Siemens, ABB, Schneider or similar). -LV cold commissioning. -Experience with grid connection processes and dealing with DNOs and ICPs. -Degree or HND in Electrical or Power Engineering (or equivalent experience). -Proven experience commissioning utility-scale solar PV or large renewable energy projects.

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About Greenvolt Next

-Operates in both mature and emerging markets across Europe, adapting to local needs. -Delivers solar solutions through on-site EPC services, corporate PPAs, and leasing models, often eliminating upfront costs for clients. -Provides a range of renewable energy solutions including rooftop and ground-mounted PV systems, battery storage, heat pumps, and EV charging infrastructure. -Expanding operations in the UK with a strategic focus on serving logistics and retail sectors.

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