For 2000-2002 (SOP3). The Standards require companies to bring forward projects to improve the efficient use of gas and electricity with a strong emphasis on the needs of disadvantaged customers. SOP3 builds on the previous Standards set for Public Electricity Suppliers, which, the National Audit office concluded, had achieved a net present value saving of 250 million and comfort improvements worth 80 million between 1994 and 1998. Ofgem expects SOP3 to continue to deliver important energy efficiency improvements for customers.