NV PGEM is the energy supplier for the provinces of Gelderland and Flevoland; it supplies electricity to 740.000 costumers. In the boroughs of Arnhem and Renkum it also supplies natural gas & water, in Almere, Lelystad & Duiven/Westervoort it supplies heating as well. Apart from the supply of energy and water PGEM's environmental service is also active in the recycling and processing of waste, remainder and surplus materials. On January 1st 1994 PGEM merged with the PEB Friesland and continues its operations under the new name NUON. Electricity accounted for 86% of 1992 revenues; gas, 8%; heating, 3%; water supply, 1% and other services 2%.