Increasing security of electricity supplies for both the UK and France.

Onshore cables

  1. The HVAC and HVDC cables related to the converter station will make landfall at Monk’s Hill beach.
  2. We will lay HVDC and HVAC cables to and from the converter station along one of the runways at Solent Airport. We’ll start this work in October 2018 and finish in October 2019.
  3. The HVAC cables will run along the bottom of the Solent to Chilling. We’ll lay these in 2019.
  4. The HVAC cables will make landfall at Chilling.
  5. We will lay HVAC cables between the landfall and connection point at Chilling. We’re carrying out construction work here until September 2018, and then installing the cables in 2019.
  6. The HVAC cables will connect to the national electricity transmission system at a substation in Chilling.

Airfield

Our HVAC and HVDC cables will connect to the Converter Station, the route from Monks Hill Beach to the Converter Station involves the installation of the cables onto Solent Airport.

Work on the airfield during 2018 and early 2019 will involve excavation of trenches and joint bays, installation of ducts for the cables in the trenches, backfilling and reinstatement. Installation of the cables and jointing works will follow on from this work during spring and summer of 2019.

In October 2017, National Grid IFA2 undertook EMF trials on Solent airport. Using AC and DC cable systems installed and energised in the configuration and current rating reflecting the actual conditions in service. This was to verify compliance with the planning conditions and that there was no interference with aircraft avionics.

All participants, including airfield users confirmed that:

  • During the trials all aircraft systems functioned as normal
  • There were no anomalies observed on any of the aircraft avionics
  • Magnetic compass deviation was temporary and minor
  • For more information on Solent Airport please visit www.solentairport.co.uk

What are we doing in the next three months?

  • In October 2018 until February 2019 we will begin digging the trenches to install the ducts for the cables. These will be completed in 50 -100m sections.
  • We have now completed the trenching for 1/3 of the route at the Airfield. 
  • We will shortly be moving down to the south end of the Airfield to continue our trenching activity.  

 

Monks Hill beach

This is where both the HVAC and HVDC cables will come onshore. All work will take place within a compound in the eastern part of the car park. We’ll access this using a purpose-built haul road through a field to the north of the car park. This will mean full public access to the western part of the car park; the beach and the beach huts are preserved throughout the construction period.

Our work will consist of the excavation of trenches to install the cable ducts, backfilling and reinstatement and the construction of 3 transition joint bays in the car park which will be backfilled and reinstated after completion of the jointing works.

When carrying out this work we will:

  • Ensure the working areas are safely segregated from the public
  • Complete the beach works and work within the eastern car park area within one season (2019)
  • Maintain access to the western section of the car park ensuring that access to all beach huts is maintained.

To get into the airfield, the cables will need to cross Stubbington Lane and Crofton Avenue. To do this, a temporary lane closure will be necessary to install the cable ducts. This will not result in a full road closure and it will be timed to minimise disruption. The road surface will be reinstated immediately after completion of this work.

What are we doing in the next three months?

  • We are currently carrying out survey work at Monks Hill beach. This survey work is necessary in advance of our main onshore construction activity taking place in early 2019.
  • In December 2018, we will be holding an information event to present our construction programme for working at the beach.

Chilling

Chilling is the point that IFA2 will connect to the electricity transmission network. We are laying cables from the shore area to an existing National Grid facility on Chilling Lane.

We have used a technique known as Horizontal Direct Drilling (HDD) to install cables in the shore area. This involves drilling underground and installing a series of ducts, which we then pull the cables through.

Elsewhere, we will dig trenches, bury the ducts, reinstate the ground, and pull the cables through. In all cases, the cables will not be visible when we have finished. For further information on NGET and the work at Chilling please visit: https://www.nationalgridet.com/infrastructure-projects/ifa-2-connection

Programme

To reduce the impact of our project traffic in the area we will do the following:

  • Impose a 10mph speed limit for construction vehicles through Hook Village
  • Escort any HGVs moving through Hook Village
  • Brief drivers about Chilling Lane’s use as a footpath and cycleway

What are we doing in the next three months?

  • Following the completion of our cabling laying preparation work we will be leaving the Chilling site at the end of September and will not return until March 2019.
  • We have now completed the road crossings on Chilling Barn and Chilling Lane. We will shortly commence the crossing on Workmans Lane. This will not impact the public access ways.
  • Our site will be shut down to minimise disruption for overwintering birds. However, our partners, National Grid Electricity Transmission (NGET), will remain at Chilling.

Last updated: Friday, November 16, 2018

Update on Broom Way construction work

See more »

News

  • Friday, November 16, 2018

    Major milestone for IFA2 as first UK converter station buildings erected

    November sees a major milestone for IFA2 as the first steel structures start to be erected at the UK converter station site.


    The main work contractors ABB are working with Morgan Sindall who are overseeing the civil phase of the build.

    The steel structures, which will be erected over the coming months, will be the first visible structures at the site. In time, they will house the key elements of the converter station including the AC & DC electrical equipment and form the control building.

    Once the structures have been erected, contractors, Morgan Sindall will weatherproof the buildings. Internal fit out and the installation of transformers is due to take place later in 2019.

    Dave Luetchford, head of National Grid IFA2, said:

    “To date, all our work on the converter station has taken place behind the site hoarding. It’s great to see the converter station now taking shape.”

    For further information about work at the converter station site, please contact National Grid IFA2 on 0800 0194 576 or info@ifa2interconnector.com

    Read more »
  • Saturday, September 1, 2018

    Boulder removal work update

    We have been carrying out debris route clearance, archaeological target investigations and boulder removal work along the HVAC route. This activity was completed in November 2018.

    We have been carrying out debris route clearance, archaeological target investigations and boulder removal work along the HVAC route.

    This activity was completed in November 2018.

     

    Read more »
  • Wednesday, August 1, 2018

    Update on Broom Way construction work

    We wrote to residents of the Lee-on-the-Solent area on 29 May 2018 to inform them that we anticipated closing one lane of Broom Way to traffic for five days from 11 June 2018 while we created a new access to the converter station site. We are now no longer planning to carry out this work in this period. This will now be rescheduled to a future date. We are grateful to members of the community for bearing with us, and will provide an update on the rescheduled work in due course.

    We wrote to residents of the Lee-on-the-Solent area on 29 May 2018 to inform them that we anticipated closing one lane of Broom Way to traffic for five days from 11 June 2018 while we created a new access to the converter station site.

    We are now no longer planning to carry out this work in this period. This will now be rescheduled to a future date.

    We are grateful to members of the community for bearing with us, and will provide an update on the rescheduled work in due course.

    Read more »