CAP182: Provision of Frequency Response from DC converters

Grid Code modification H/04 – Changes to Incorporate New Generation Technologies and DC Interconnectors (Generic Provisions), approved by the Authority on 23rd November 2005, obligates Direct Current (DC) Converters completed after 1st April 2005 to meet certain requirements under the Grid Code; this includes the capability to provide the mandatory ancillary service of frequency response. The first DC Converter affected by this change (known as BritNed – a DC interconnector between GB and the Netherlands) is due to connect to the National Electricity Transmission System towards the end of 2010.