RJ Power Networks Limited, design, install, operate and maintain High and Low Voltage Distribution Networks to end users and duty holders throughout London and the South.

Our activities support many sectors typically, Building Services, Manufacturing, Hospitality and Leisure, Hospitals and Pharmaceuticals, Transportation, MOD, Media and Television, Renewables (Solar and Wind), Generation Companies, National Infrastructure, Airports, Shipping, DLR, Data Centre, Mines, Quarries, Universities and Schools.

We follow the guidance of statutory obligation (Electricity at Work Regulations 1989 – Electricity Safety, Quality and Continuity Regulations 2002) and adhere to manufacturers OEM specifications for periodic maintenance, looking at service intervals and any known defects that must be addressed.

RJ Power Networks Limited subscribe to the NEDeRS, a live database and reporting portal that updates the industry with equipment defects to support safe operation of an electricity network. Our customers benefit from this and we will communicate any restrictions and equipment failures that may compromise the customers own NED works.


RJ Power Networks Limited has a dedicated team of Electrical Engineers, Electrical Technicians and support staff committed to delivering quality engineering solutions from electrical distribution plant maintenance through to turnkey electrical plant upgrades. The business has a wealth of in-house knowledge and skills through the employment of trusted industry experts enabling self-delivery of our activities.

We are identified as a quality business, which exceeds expectation and we believe this separates us from our competitors. Quality and high standards of competence are the driving force of RJ Power Networks’ day-to-day operation, from original enquiry, to delivery and after event reporting.

Our commitment to safety is at the core of what we do. We operate our own distribution safety rules, ensuring statutory compliance. Our Authorising Engineer and Managing Director holds ultimate authority in managing safety throughout our business. RJ Power Networks’ primary role is to ensure safety protocols are maintained at all times.


  • HV and LV Switchgear Maintenance – (400v 3 Phase to 33kV)
  • Installation of HV and LV Switchgear Switchroom and Substation Construction – (400v 3 Phase to 33kV)
  • Testing and Commissioning of Electrical Distribution Equipment – (400v 3 Phase to 33kV)
  • Senior Authorised Person Duties
  • Power Factor Correction
  • AE Services (Authorising Engineer)
  • Training and Development
  • HV and LV Cable Services – Installation, Testing and Commissioning
  • Condition Based Monitoring of Electrical Assets and Infrastructure
  • Total Asset Management – Control Operation and Maintenance (COMA)
  • Earthing Lightning and Protection Systems – Earthing Systems Design and Testing
  • Full Turnkey Infrastructure Projects – Design, Procurement, Installation, Testing and Commissioning
  • Nationwide 24 Hour, 365 days a year Emergency Response
  • Consultancy Services (Arc Flash Studies – Protection and Grading Studies – G99 Compliance)
  • Independent Connections Provider – Lloyds Accredited – Networks Resilience and Infrastructure Design
  • Design and Energy Management

Recent Case Studies