Schedule 1 AUTHORISED DEVELOPMENTI1

In the County Borough of Neath Port Talbot—

The construction, operation and maintenance of a nationally significant infrastructure project as defined in sections 14 and 15 of the 2008 Act, being an electricity generating station located on the site of the Port Talbot steelworks, with a nominal gross electrical output capacity of up to 150 megawatts, fuelled by gases produced during the steelmaking process with natural gas provided as a back up, comprising—

• Work No. 1A – development comprising—

  1. (a)

     up to 2 steam boilers and their associated stacks, boiler house and annexe bay;

  2. (b)

     a set of steam turbo-alternators and their associated condensers and turbine building;

  3. (c)

     a 66 kilovolt electricity switchgear station building containing gas-insulated switchgear and associated control rooms, and infrastructure (including cables) to provide a connection to Work No. 2;

  4. (d)

     a cooling tower unit comprising—

     1. (i)

        a cooling tower;

     2. (ii)

        a cooling tower electrical control room; and

     3. (iii)

        cooling water pump house;

  5. (e)

     ancillary buildings, structures and plant including—

     1. (i)

        electrical equipment;

     2. (ii)

        administration and control building;

     3. (iii)

        main and auxiliary transformers;

     4. (iv)

        condensate polisher, condensate pumps and condensate storage tank;

     5. (v)

        oil water separator;

     6. (vi)

        water treatment plant and chemical dosing system skids;

     7. (vii)

        boiler feed pumps;

     8. (viii)

        low pressure gas boosters; and

     9. (ix)

        emissions monitoring system;

  6. (f)

     pipe racks;

  7. (g)

     a fire protection system; and

  8. (h)

     a car parking area.

• Work No. 1B – development comprising a construction compound, temporary laydown storage area and temporary construction site offices.

• Work No. 1C – development comprising—

  1. (a)

     the connection of Work No. 1A to the existing onsite infrastructure through—

     1. (i)

        the extension of existing pipework (for water, nitrogen, process gases, natural gas, steam and compressed air); and

     2. (ii)

        connections to the drainage systems, electrical cables and other utilities;

  2. (b)

     security infrastructure including perimeter fencing;

  3. (c)

     internal roadways including connections to the existing internal roadway;

  4. (d)

     site drainage and waste management infrastructure;

  5. (e)

     landscaping including tree planting, fencing and other boundary treatments; and

  6. (f)

     site lighting infrastructure.

• Work No. 2 – development comprising—

  1. (a)

     the installation of 66 kilovolt electrical cables approximately 2.8 kilometres in length from Work No. 1A to the Grange and Cefn Gwrgan substations. The cables will either be installed underground or supported for part of the route by existing above-ground structures or, if necessary, by a steel lattice cable bridge to be erected between the 2 substations; and

  2. (b)

     modifications to the Grange and Cefn Gwrgan substations to accept the electrical cables, including the installation of new 66 kilovolt bays at each substation, consisting of an open 66 kilovolt bus bar arrangement, incorporating—

     1. (i)

        bus bar isolators;

     2. (ii)

        gas-insulated switchgear circuit breakers;

     3. (iii)

        line isolator and earth switches;

     4. (iv)

        voltage transformers;

     5. (v)

        interconnecting 66 kilovolt open bus bars;

     6. (vi)

        cable sealing ends;

     7. (vii)

        associated system earth requirements; and

     8. (viii)

        protection and control equipment.

In connection with the Works and to the extent that they do not form part of a Work, development comprising—

only within the Order limits and insofar as such development is unlikely to give rise to any materially new or materially different environmental effects from those assessed in the environmental statement.