Overview Delta Electricity’s Marketing Group is based in Sydney and is responsible for: co-ordinating power station generation; bidding Delta’s generation into the National Electricity Market (NEM); managing Delta’s supply and cost of ancillary services; managing customer relationships and negotiating of hedging contracts; ensuring appropriate policies, procedures and processes are in place for participating in the NEM; forecasting of price and electricity demand; the selling of green energy rights (RECS, NGACS, Green Power) produced from Delta's green energy sources; and regulatory compliance and contribution to market development.