Lead HV Authorised Person - Solar PV & G99 Compliance

OpenKrill; United States; Remote; USD 80,000 - 120,000; Full time

Job summary

Greencells is seeking an experienced and safety-driven HV Senior Authorised Person to lead HV operations, G99 compliance testing and interface with Distribution Network Operators on UK solar PV sites.

You will write and approve switching programmes, manage safety documents, and plan G99 testing across project stages while coordinating with DNOs and project teams to ensure safe energisations and compliance.

Qualifications

• Current SAP authorisation, minimum 33 kV, on private or renewable networks.
• Proven experience issuing PTW and SFT and writing switching programmes.
• Hands-on G99 compliance testing on solar PV or BESS sites, including DNO witnessing.
• Knowledge of EaWR 1989, ESQCR 2002, G99 and G5/5.
• Ability to run energisations and G99 testing independently under programme pressure.
• Confident communication with DNOs, clients and project teams.
• Full UK driving licence and the right to work in the UK.

Responsibilities

• Act as HV Senior Authorised Person on Greencells UK solar PV sites (11/33 kV, and 132 kV where applicable).
• Write and approve switching programmes, and issue and cancel safety documents such as PTW, SFT and LOA.
• Plan, lead and document G99 compliance testing, including reactive power, voltage control, frequency response and power quality, through all stages from EON to ION and FON.
• Be the single point of contact for the DNO, covering connection and operational matters, outage bookings, witness tests and G99 evidence packs.
• Commission HV switchgear, protection and interface protection, and lead fault finding and plant-trip investigations.
• Coach and authorise Authorised Persons (APs) and Competent Persons (CPs), and support project teams and clients on HV safety.

Skills

HV Authorisation

PTW / SFT experience

G99 testing

DNO liaison

Regulatory knowledge EaWR/ESQCR/G99

Independent energisations

UK driving licence

Job description

Greencells is seeking an experienced and safety-driven HV Senior Authorised Person to lead HV operations, G99 compliance testing and interface with Distribution Network Operators on UK solar PV sites.

You will write and approve switching programmes, manage safety documents, and plan G99 testing across project stages while coordinating with DNOs and project teams to ensure safe energisations and compliance.