Heritage Cases

The power plant will operate at mid-merit to baseload duty and will include the following main infrastructure: A number of gas turbines for the generation of electricity through the use of natural gas (liquid or gas forms), or a mixture of Natural gas and Hydrogen (in a proportion scaling up from 20% H2) as fuel source, operating all turbines at mid-merit or baseload (estimated 16 to 24 hours daily operation). Exhaust stacks associated with each gas turbine. A number of Heat Recovery Steam Generator (HRSG to generate steam by capturing the heat from the turbine exhaust. A number of steam turbines to generate additional electricity by means of the steam generated by the HRSG. The water treatment plant will demineralise incoming water from municipal or similar supply, to the gas turbine and steam cycle requirements. The water treatment plant will produce two parts demineralised water and reject one-part brine, which will be discharged to the R IDZ stormwater system. Steam turbine water system will be a closed cycle with air cooled condensers. Make-up water will be required to replace blow down. Air cooled condensers to condensate used steam from the steam turbine. Compressed air station to supply service and process air. Water pipelines and water tanks for storage and distributing of process water. (Potential sourcing of alternative water outside RB IDZ supply (Municipality)) Water retention pond Closed Fin-fan coolers to cool lubrication oil for the gas turbines Gas generator Lubrication Oil System. Gas pipeline supply conditioning process facility. Please note, gas supply will be via dedicated pipeline from the proposed Transnet supply pipeline network of Richards Bay (the location of this network has not yet been confirmed) or, alternatively directly from the Regasification facilities at RB Harbour. The gas pipeline will be separately authorized. Site water facilities including potable water, storm water, waste water Fire water (FW) storage and FW system Diesel emergency generator for start-up operation. Onsite fuel conditioning including heating system. All underground services: This includes stormwater and wastewater. Ancillary infrastructure including: Roads (access and internal); Warehousing and buildings; Workshop building; Fire water pump building; Administration and Control Building; Ablution facilities; Storage facilities; Guard House; Fencing; Maintenance and cleaning area; Operational and maintenance control centre; Electrical facilities including: Power evacuation including GCBs, GSU transformers, MV busbar, HV cabling and 1x275kV or 400kV GIS Power Plant substation. Generators and auxiliaries; Eskom 275 or 400kV GIS interface Substation, Underground 275 or 400kV power cabling connecting Power Plant GIS substation and Eskom GIS Interface substation and an overhead 275kV or 400kV power line connecting the Eskom interface substation to the selected Eskom grid connection point (all subject to a separate environmental authorisation application): Service infrastructure including: Stormwater channels; Water pipelines Temporary work areas during the construction phase (laydown areas) A dedicated pipeline to connect into an on-site gas receiving and conditioning station will provide the natural gas or the mixture of natural gas and Hydrogen. The pipeline will be connected to the proposed Transnet supply pipeline network of Richards Bay (the location of this network has not yet been confirmed), or it will extend directly to the Regasification facilities in the RB Harbour. A separate EIA process will be undertaken for the dedicated fuel-supply pipeline.