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.
  • In February 2019, we are scheduled to carry out two road crossings over Stubbington Lane and Crofton Avenue. We are working closely with Hampshire County Council to manage this work appropriately and will put traffic management in place during this period - further communications will be provided once the dates are confirmed.

 

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 have now completed some survey work at Monks Hill beach. This survey work was necessary in advance of our main onshore construction activity taking place in early 2019.

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?

  • We have now completed the crossings over Chilling Lane and Workmans Lane.
  • We have demobilised from the site until mid-March 2019.

Last updated: Thursday, December 6, 2018

Update on Broom Way construction work

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News

  • Friday, December 7, 2018

    IFA2 to take part in oyster translocation project in partnership with Southern Inshore Fisheries and Conservation Authority (IFCA) as part of the Solent Oyster Restoration Project

    We have been working with the Southern IFCA to carry out an oyster translocation programme to support local regeneration of the native oyster population in the Solent. As part of the IFA2 project, we have recently funded the chartering of a local fishing vessel in the Lee-on-Solent to Chilling area to collect data on and mitigate the impact to the native oyster populations over the HVAC cable route.

    We have been working with the Southern IFCA to carry out an oyster translocation programme to support local regeneration of the native oyster population in the Solent. As part of the IFA2 project, we have recently funded the chartering of a local fishing vessel in the Lee-on-Solent to Chilling area to collect data on and mitigate the impact to the native oyster populations over the HVAC cable route.


    The Solent Oyster Restoration Project, set up by marine conservation charity Blue Marine Foundation (BLUE), seeks to rebuild the Solent’s native oyster population by restoring habitats in partnership with local fisherman, marine and local authorities and scientists. Through the funding we have provided to the Southern IFCA, local fishermen have been working with BLUE to collect oysters on the IFA2 route. The oysters collected are then moved to broodstock cages where they can contribute towards restoring the once self-sustaining oyster population.


    The native oyster, Ostrea edulis, has been found in the Solent since the 1970s. Historically seen as Europe’s largest self-sustaining flat (native) oyster fishery in its peak, the oyster population has recently declined, affecting fishermen and the overall health of the marine ecosystems in the Solent. Temporary closures of oyster harvesting have been in place in recent years to avoid further loss of the native oyster population and allow remaining adult oysters in the Solent to reproduce and act as a breeding stock.


    Dave Luetchford, head of IFA2 said: “We’re thrilled to be supporting the Solent Oyster Restoration Project. This is a great opportunity to make a contribution to conservation in the Solent, helping to restore to the region’s once self-sustaining oyster population, supporting employment in the oyster fishery and thereby the local economy, as well as improving biodiversity and water quality in the Solent.”

     

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  • Friday, November 23, 2018

    Construction Information Event

    On Wednesday 28th November 2018 we held a construction information event on the latest work we are doing for IFA2. The event took place between 15:30- 19:30 at The Bridge Conference Suite, Fareham Innovation Centre, Merlin House, 4 Meteor Way, Fareham, Lee-on-the Solent, PO13 9FU. Members of our team were available to answer questions and discuss the project in more detail.

    On Wednesday 28th November 2018 we held a construction information event on the latest work we are doing for IFA2.

    The event took place between 15:30- 19:30 at The Bridge Conference Suite, Fareham Innovation Centre, Merlin House, 4 Meteor Way, Fareham, Lee-on-the Solent, PO13 9FU.

    Members of our team were available to answer questions and discuss the project in more detail.

    To take a look at our invitation leaflet please click here

    To view the information displayed at the event please click here

     

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  • 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

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