USAID ENERGY POLICY PROGRAM MONTHLY REPORT JULY 2011 REHABILITATION OF TARBELA HYDROPOWER PLANT

The program, which began in 2011, involves the replacement of damaged generator stator windings with Class F insulation, upgrading of the SCADA system, and replacement of worn-out station drainage and dewatering pumps. The rehabilitation of Unit #4 generator stator winding with Class F insulation was completed on May 12, 2011, and the unit was operating at full load of 153 MW at a reservoir level of 1474 ft. Prior to shutdown and with old Class B winding, the unit was operating at 87 MW, resulting in a net gain of 66 MW at this reservoir level. It is expected that Unit #4 will generate 195 MW at a reservoir level of 1550 ft, resulting in a gain of 108 MW. The procurement of new digital Governors and SCADA System was approved by the Contracting and Commercial Committee (CCC) and WAPDA has placed the purchase orders. The installation and testing of Unit #4 Generator Stator Winding with Class F insulation was completed on May 12, 2011, and the unit was operating at full load of 153 MW at a reservoir level of 1474 ft. The replacement of damaged generator stator windings with Class F insulation for Units #1 and #3 has been completed, with Class F windings for Unit #1 arriving at Tarbela in March 2011 and for Unit #3 arriving in December 2011. The units will be shut down after the high flow season is over, and the installation and commissioning for these units will be completed by the end of May 2012. The total financial progress as of today is about 57.64%, with a payment of US $9,509,917 having been reimbursed in WAPDA's account. The estimated overall improvement in generation is expected to be 128 MW, with Unit #4 expected to generate 195 MW at a reservoir level of 1550 ft, resulting in a gain of 108 MW. The rehabilitation program is expected to be completed by the end of May 2012, with the installation and commissioning of Units #1 and #3 being completed by that time. The program is expected to result in a significant improvement in the plant's energy generation capacity, with a net gain of 66 MW at a reservoir level of 1474 ft and a gain of 108 MW at a reservoir level of 1550 ft.