Commissioning Engineer - BESS London £50-55 an hour Outside IR35 Essential Skillset: Experienced in commissioning utility-scale BESS projects, substations, and renewable energy infrastructure. Strong knowledge of electrical systems, SCADA integration, HV equipment, and commissioning processes. Able to read and interpret electrical schematics, control drawings, single-line diagrams, and commissioning documentation. Skilled in functional testing, fault finding, energisation support, and system validation within HV and critical infrastructure environments. Experience producing commissioning reports, test records, punch lists, and QA/QC documentation. Strong understanding of health & safety requirements and safe systems of work on live construction and energy sites. TPBN1_UKTJ