Guinea-Bissau has great potential resources for hydroelectric power development for the domestic market and even for export. The potential production capacity of the Corubal and Geba rivers alone exceeds the country's estimated future need. Installed capacity in 2001 was 1,100 kW; 2000 production totaled 60 million kWh, of which 100% came from fossil fuels. Consumption of electricity was 55.8 million kWh in the sme year. In 1991, production of crude oil totaled 4,000 barrels, down from 20,000 barrels in 1988. There was no crude oil production as of 1998.