In May 2005, the government of Pakistan began implementing a series of integrated activities in line with the power sector development strategy set out in its Medium-Term Development Framework. That framework envisaged additional power generation, transmission, and distribution capacities to ensure sufficient electricity supply to meet the 8% annual economic growth projected for the planning period 2005–2010. Subsequently, in coordination with the Ministry of Water and Power, the power distribution companies (DISCOs) prepared the Power Distribution Sector Road Map for 2008–2017. The road map recommended short- (priority), medium-, and long-term system improvement projects and detailed the investment needs.
The government sought financing from the Asian Development Bank (ADB), the World Bank, and other multilateral and bilateral funding agencies to meet the investment requirement for the DISCOs, estimated at $5.2 billion. In response, ADB approved a multitranche financing facility (MFF) of up to $810 million for the Power Distribution Enhancement Investment Program. The program comprised four projects with five loans, involving (i) the augmentation and extension of 132-kilovolt (kV) power transformers at secondary transmission grid (STG) substations, (ii) construction of STG substations, (iii) construction of transmission lines, (iv) reduction of energy loss through the replacement of overloaded distribution transformers with higher-capacity ones and the improvement of power distribution through additional transformer capacity on the 11 kV feeders, and (v) establishment of strategic spares (spare power transformers for emergencies).
The program completed all four tranches as planned. Tranche 1, comprising two loans totaling $252.0 million, covered (i) the augmentation, extension, conversion, and rehabilitation of the STG; (ii) construction of STG lines; and (iii) installation of capacitors to reduce energy loss. Tranche 2, with one loan for $242 million, supported (i) the continued augmentation, extension, conversion, and rehabilitation of the STG; (ii) continued construction of STG transmission lines; and (iii) continued installation of capacitors to reduce energy loss. Tranche 3, a single loan of $245 million, supported (i) the augmentation, extension, conversion, and installation of substations; and (ii) conversion, replacement, and extension of STG lines. Tranche 4, a loan for $167.2 million, financed components of the development road map and expansion of the distribution sector.
Most of the program’s subprojects were commissioned within the respective project completion dates. The 796 subprojects that were completed resulted in a 17,399 megavolt-ampere increase in throughput capacity and a 2,112 km increase in the length of transmissionlines throughout Pakistan. Of its four tranches, the MFF’s last tranche had the most profound impact on the DISCOs’ power distribution network. Its outputs included (i) the augmentation of 181 substations; (ii) the extension of 111 substations; (iii) the commissioning of 5 substations; and (iv) the conversion of 6 substations. All the targets were surpassed owing to the effective utilization of savings.
Enhanced capacity at 636 stations substations and the construction of 35 new ones and additional transmission lines resulted in a more reliable and efficient power distribution network and contributed to the successful implementation of the village electrification program, with 85.2% of villages electrified by 2018. They also increased the sales of the DISCOs, with benefits accruing to commercial and residential customers, as well as villages, schools and hospitals. The program’s indirect impacts included an increase in income and job opportunities, which helped increase the growth in real gross domestic product from an average of 3.6% in 2007–2015 to 5.3% in 2016–2018. The DISCOs’ restructuring was completed, and as of program completion, they have operated as independent entities after their unbundling from the Water and Power Development Authority.
The Pakistan Electric Power Company (PEPCO) served as the executing agency, and the DISCOs, the implementing agencies in their respective jurisdictions.