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 involved 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?

  • We will resume HVAC cable laying work from Chilling to Monks Hill Beach from Sunday 18 August, when we’ll lay the sixth and final cable.

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.

Monks Hill Beach information poster

HVAC vessel work areas

What are we doing in the next three months?

  • We have established site hoardings around the area to the south of Crofton Avenue which is the main access for our construction traffic down to Monks Hill Car Park.
  • Fencing is in place on the beach and pink buoys are positioned on the water around our jack up barge, the C57 Red Squirrel, to mark out our working construction area. There are open excavations and obstructions under the water and the area is therefore restricted for your safety. Please do not enter this restricted working area on the beach or in the water. For more information please see the poster above.
  • We have completed the installation of sheet piling off Monks Hill Beach. We aim to finish our trenching work there by mid-September and will then begin work to return the beach to its original condition.
  • We have temporarily diverted the public footpath through our site hoardings from the car park to The Shack café while we excavate trenches underneath the footpath route.
  • The NP 289, our cable laying barge has been laying HVAC cables between Monks Hill Beach and Chilling. We paused this work between 9 August and 17 August but will recommence work from 18 August to lay the sixth, and final, HVAC cable.
  • The current position of our vessels can be tracked on the MarineTraffic.com tool on the Offshore Cable section of this site.

 

The NP 289

C57 Red Squirrel

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 returned to site in mid-March after a shutdown period to protect overwintering birds.

Last updated: Wednesday, August 14, 2019


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News

  • Tuesday, February 5, 2019

    Stubbington Lane and Crofton Avenue Road Crossings

    In preparation for the installation of the ducts for the cables, we are now making temporary changes to Stubbington Lane and Crofton Avenue.

    Our work will consist of digging below the roads to carry out the excavation of trenches and joint bays, installation of ducts for the cables in the trenches, backfilling and reinstatement, allowing us to be able to pull through the cables when they arrive onshore later this year and not disturb these roads again.

    On the 28th January 2019 we closed a section of Crofton Avenue where it meets Stubbington Lane. We have put in place a diversion down Sea Lane to maintain access to nearby homes and Monks Hill beach car park. Whilst the construction activities along Crofton Avenue will only take approximately a week, in order to better manage the traffic on Stubbington Lane the diversion will be in place until 24th February 2019.

    On the 4th February 2019, we also closed one lane at a time of Stubbington Lane for a three-week period. 

    Upon completion of this work, the construction areas will be reinstated and no equipment will be visible above the ground. We have worked closely with Hampshire County Council to schedule as much of this work as possible to fall outside the school term period.

    Regular updates will be provided on a weekly basis as this work progresses. Thank you for your continued cooperation. For further information, please contact us on 0800 0194 576 or email info@ifa2interconnector.com

     

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  • Thursday, January 10, 2019

    Portsmouth University students begin work experience for IFA2 project

    In late 2018, National Grid IFA2 welcomed students from Portsmouth University to carry out a business consultancy project within the IFA2 project as part of their degrees, the IFA2 Employment and Skills Plan and the ongoing commitment to engage with the local community. Joining the IFA2 project team in November 2018, five business undergraduates were tasked with two projects targeted around the work due to take place at Monks Hill Beach and the delivery of the public open space north of Daedalus Airfield, whilst applying knowledge that they have learnt throughout their time at the university.

    In late 2018, National Grid IFA2 welcomed students from Portsmouth University to carry out a business consultancy project within the IFA2 project as part of their degrees, the IFA2 Employment and Skills Plan and the ongoing commitment to engage with the local community.

    Joining the IFA2 project team in November 2018, five business undergraduates were tasked with two projects targeted around the work due to take place at Monks Hill Beach and the delivery of the public open space north of Daedalus Airfield whilst, applying knowledge that they have learnt throughout their time at the university.

    With the first of the two projects now complete, students have designed a series of panels, which will be transferred onto site hoardings highlighting the work that is scheduled to take place at Monks Hill Beach; where both the HVAC and HVDC cables will come onshore. Given the public nature of these works, the students also needed to explain various health and safety signs and symbols to inform members of the public to keep safe around the IFA2 construction site.

    Returning in 2019, the students will then begin their next project, supporting the delivery of the public open space.

    David Luetchford, head of IFA2 said: “We are thrilled to have students from Portsmouth University working with us on the IFA2 project. Ensuring that our site hoarding is both informative and educational for the local community is vital for us to meet the expectations of Fareham Borough Council. We are committed to delivering an appropriate level of communication and community engagement with the various stakeholders and members of the local community who use this public space.

    At National Grid, we are always looking for new opportunities to engage local students in the different types of careers and work experience opportunities that National Grid offer. For more information please contact: info@ifa2interconnector.com.”

    One of the students from Portsmouth University said: “We have thoroughly enjoyed our time so far working with the IFA2 project team. The experience has given us a real insight into how to apply our university learning into real business consultancy scenarios.”

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  • Monday, December 17, 2018

    IFA2 contractors go carbon neutral!

    Working with its contractor I&H Brown, National Grid IFA2 has announced that the carbon impact for the new public open space will be neutral.* As a socially responsible civil engineering organisation, I&H Brown pride themselves on reducing their environmental impact by counteracting its greenhouse gas emissions through a long-term forestry project. Where managed on a long-term basis, forests are seen as greenhouse gas sinks for carbon sequestration purposes.

    Working with its contractor I&H Brown, National Grid IFA2 has announced that the carbon impact for the new public open space will be neutral.*

    As a socially responsible civil engineering organisation, I&H Brown pride themselves on reducing their environmental impact by counteracting its greenhouse gas emissions through a long-term forestry project. Where managed on a long-term basis, forests are seen as greenhouse gas sinks for carbon sequestration purposes.

    The Open Space Development’s carbon footprint and emissions will be offset by planting a mixture of trees in the 620-hectare forest which I&H Brown maintains offsite, in addition to the planting on the Open Space Development (link older article). Since 2013, I&H Brown estimate that through woodland management, they have had an annual footprint offset of -3,950.50 CO2e per year.

    The work being carried out by I&H Brown at the IFA2 site includes the reuse of ~36,000m3 of soil on site. This soil is being used to create the numerous earth bunds that screen the converter station buildings, as well as providing viewing platforms over sections of the Solent Airport.

    David Luetchford, head of IFA2 said: “Our new open space contractor is working hard to deliver the public open space at the Daedalus site. We’re pleased that in partnership with I&H Brown, we will be able to deliver a public open space that has a neutral carbon impact.

    Work is progressing well, and we’re now working to enhance the connectivity of the site by establishing the various footpaths and cycleways throughout the space for the public to enjoy in the future.”

    *Carbon emissions are calculated and reported in tonnes of CO2 equivalent (tCO2e) following recommended best practice

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