QATAR ELECTRICITY AND WATER QPSC revenue for the last year amounted to 3.00 B QAR, the most of which — 1.57 B QAR — came from its highest performing source at the moment, Electricity, the year earlier bringing 1.50 B QAR. The greatest contribution to the revenue figure was made by Qatar — last year it brought QATAR ELECTRICITY AND WATER QPSC 2.87 B QAR, and the year before that — 2.76 B QAR.