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Operations & Maintenance

HV Services

Our specialist HV service engineers provide a broad range of operation & maintenance, design, installation consultancy, testing and commissioning services for renewable energy projects.

Safety is our priority

We implement and operate our own safety rules which is supplemented by our in-house 24/7 control centre, ensuring statutory compliance and the highest levels of safety.

Our robust ISO certified H&S Management System ensures that we achieve market leading safety performance.

What we offer

Leveraging our decades of experience in the renewable industry, we deliver HV services across solar, energy storage, onshore wind and offshore wind, at voltages up to 400kV.

  • Transformer and switchgear installation and maintenance
  • Switching and isolations
  • Fault finding and repairs
  • SAP’s up to 400kV
  • Cable jointing, termination and testing
  • Oil sampling and analysis

  • Protection testing and commissioning (new and existing sites)
  • Partial discharge testing and reporting
  • Site rectification and defect works

Find out more

Get in touch

To find out more about our range of services and how RES can support you with High Voltage related services please get in touch via our contact form.

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Latest Resources

Learn more about our projects.

Global Offshore Wind 24

Global Offshore Wind, organised by RenewableUK, is the the UK’s largest meeting place for the global offshore wind industry. Our development, support services and digital teams will be in attendance. Come and visit our stand and find out more about how we can support your offshore projects. In addition, we…

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RES MAKES WAVES WITH HV CONTRACT WIN AT EAST ANGLIA THREE

RES is powering up its partnership with ScottishPower Renewables, part of the Iberdrola group, after winning a significant contract to deliver high voltage (HV) services at the offshore wind farm, East Anglia THREE.

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HV Services

A collaborative effort by RES’ Projects and High Voltage (HV) teams culminated in the successful re-energisation of a large solar farm for one of our clients. Decoy Solar is a 5.3MW solar farm located in Chichester, England. The site consists of over 26,000 panels and can provide sufficient low-cost renewable…

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Our technologies

Providing the transformation and innovation needed to deliver a clean energy future.

Wind

Delivering both onshore and offshore wind projects, carefully balancing safety, cost, risk, and opportunity to drive best-in-class results.

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Solar

Using our wealth of industry experience to build high performing utility scale solar farms.

Learn more

Energy Storage

Powering flexible ways to facilitate clean energy using our innovative energy storage solutions.

Learn more

Green hydrogen

Helping decarbonise industry by developing and operating green hydrogen plants fuelled by clean energy.

Learn more
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Our technologies

Providing the transformation and innovation needed to deliver a clean energy future.

Wind

Delivering both onshore and offshore wind projects, carefully balancing safety, cost, risk, and opportunity to drive best-in-class results.

Learn more

Solar

Using our wealth of industry experience to build high performing utility scale solar farms.

Learn more

Energy Storage

Powering flexible ways to facilitate clean energy using our innovative energy storage solutions.

Learn more

Green hydrogen

Helping decarbonise industry by developing and operating green hydrogen plants fuelled by clean energy.

Learn more

Wind

Delivering both onshore and offshore wind projects, carefully balancing safety, cost, risk, and opportunity to drive best-in-class results.

Learn more

Solar

Using our wealth of industry experience to build high performing utility scale solar farms.

Learn more

Energy Storage

Powering flexible ways to facilitate clean energy using our innovative energy storage solutions.

Learn more

Green hydrogen

Helping decarbonise industry by developing and operating green hydrogen plants fuelled by clean energy.

Learn more

Contact us

Speak to a member of the team today

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