Net-metering for privately owned PV systems was established mid 1998 at the time, for a pilot-period of four years. Work is ongoing to make this system more permanent. Under this programme, self-generated private electricity is purchased at the same price as the utility company sells its standard electricity. This effectively allows the consumer to run the meter backwards when generating more electricity than is used. There is no payment for net production per year. In late 2002, the net-metering scheme was extended for another four years until 2006.