Hero Image

Our high voltage services

High-voltage turnkey specialist services

From design to complete Balance of Plant (BoP) services, we deliver high-voltage grid connection capabilities across all energy sectors.

0MW

solar PV connected

0MW

BESS systems connected

0

132kV projects

0

33kV projects

Complete solutions connecting your projects to the grid.

Ethical Power Group offers full-wrap high voltage connections services, and can work efficiently with any component or vendor needed to make your project a success.

Our in-house capabilities up to 132kV have seen us complete connections to all distribution networks across the UK, as well as the National Grid’s transmission network.

Ethical Power Group can also deliver projects at 400kV, and our team has over 20 years of experience delivering high-quality high-voltage installation and commissioning services. We have also partnered with the National Grid on dozens of projects.

We pride ourselves on our open and collaborative approach with clients.

With in-house expertise across the entire project value chain, we offer solutions in the following categories:

  • Design and development
  • Electrical project management
  • Civil project management
  • Construction: full-wrap and BoP
  • Commissioning

From initial grid application and feasibility studies, through bespoke design to complete Balance of Plant (BoP) services and contestable works, we deliver high-voltage grid connections across all energy sectors, including utility-scale solar PV and BESS, onshore wind and commercial demand connections.

Trusted by the most innovative energy companies in the country, we support utilities, developers and renewable investment funds, working closely with DNOs and IDNOs to ensure we meet industry standards and requirements.

Our Battery Energy Storage System expertise

Energy storage can help stabilise the grid and mitigate the intermittency in co-located solar farms. BESS installations are a complex dance of heavy machinery and sensitive electrical equipment. With over 1 GW of BESS installations under our belt, using all major manufacturers, you can trust us to deliver the best in BESS.

We see a big difference between delivering BESS sites and delivering great BESS sites. Our experience and expertise enable us to fully optimise not just the import/export capacity of your BESS project, but also to increase its profitability, especially when co-located with a solar farm.

Interested to learn more about how we do this? Click on the link below to read a summary of a talk our Head of Operations, Simona Scanu, gave to the Institution of Power Engineers.

High Voltage Services

High Voltage experts GTDS joined the Ethical Power Group in 2024, with a stellar track record in HV services, working with customers such as the National Grid, Vodafone, SSE, and Western Power Distribution.

GTDS provided the final piece of the Ethical Power puzzle, expanding our full wrap services to include the following 400kV capabilities:

  • HV substation design services
  • Manufacture, assembly, and factory acceptance testing (FAT) of portable relay rooms and protection and control panels
  • Extensive HV installation services, including supergrid transformers and shunt reactors, HV switchgear, UPS systems and more
  • HV decommissioning and refurbishing
  • Comprehensive commissioning and testing services

Ethical Power's Accreditations

As a National Electricity Registration Scheme (NERS) Independent Connection Provider (ICP), we have the capability to deliver grid connections in competition with the Distribution Network Operators up to and including 132kV for the following scopes:

  • Design scopes covering HV and LV cable networks, along with substation up to and including 132kV
  • Substation installation up to and including 132kV
  • Cable laying and jointing work up to and including 132kV
  • Civil works
  • Overhead poles at 11kV
  • All other scopes up to 132kV

As part of NERS, our management system and installation works are monitored on a regular basis throughout the year by the NERS assessors to ensure that we continue to comply with the requirements of the scheme, and that our works are completed to a high level of health, safety, environmental and quality performance.

Safe and sustainable processes delivering efficient and timely projects.

The grid is a critical element of the country’s energy infrastructure. Our focus on the safety of all workers on site and the sustainable operational processes means we can deliver our project on time, minimising risk and improving uptime.

We continuously look for ways of further improving our processes, from safety to carbon footprint reduction methods. We are proud winners of the 2024 Solar and Storage “Utility Scale Solar and/or Storage Project of the Year”  Award for our work on SMS’s Berkeley BESS project.

This award recognises the results in reducing our carbon footprint by integrating environmental, social, and governance (ESG) considerations into early-stage project planning.

  • Safety is built into our work culture. From the first day on the job and every day onwards, we ensure everyone working with us will be able to go home in full health. We can be really proud of the results we’ve achieved in this area.

    Rob ThomasGroup SHEQ Director
  • Safety is built into our work culture. From the first day on the job and every day onwards, we ensure everyone working with us will be able to go home in full health. We can be really proud of the results we’ve achieved in this area.

    Rob Thomas – 1Group SHEQ Director