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 are currently laying six HVAC cables from Chilling to Monks Hill beach where each cable will be pulled in to the pre-prepared cable ducts on the beach.

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 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 is moving between Monks Hill Beach and Chilling to lay six HVAC cables. The vessel’s working and anchor areas are marked by buoys to create a safety zone for your protection. The barge moves on anchors; its route and the anchor point areas are shown in the chart above. Please be vigilant on the water and avoid this working area.
  • The NP 289 will be completing the installation of the next HVAC cable by pulling in the end of the cable through pre-installed ducting at Monks Hill beach. The installation is due to take place on 21/07/19 over the course of daylight hours.
  • 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: Friday, July 19, 2019


Lost WW2 aircraft lifted from sea after more than 75 years

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News

  • 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

    Read more »
  • 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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