Germany's renewable energy feed in tariff (REFIT) is to drop slightly in 1998 to DEM 0.1679/ kWh. Utilities are obliged by the Electricity Feed Law to buy all power offered them from renewables sources. Last year's REFIT rate was DEM 0.1715/kWh. The tariff is calculated from the average income that utilities earned per kWh of all electricity sold two years previously. For 1996, the federal office of statistics, the Statistische Bundesamt, calculates this was DEM 0.1865/kWh and DEM 0.1906/kWh in 1995. Wind and solar plant generators receive 90% of this amount, biomass and small hydro plant (up to 500 kW) receive 80%, and larger hydro plant up to 5 MW, 65%.