SMART GRID INTEGRATION OF RENEWABLE ENERGY SOURCES FOR SUSTAINABLE POWER SYSTEMS IN PAKISTAN

Abstract

Pakistan’s power sector faces chronic challenges including high transmission and distribution losses (~18%), circular debt, reliance on expensive imported fossil fuels, and an outdated unidirectional grid ill-equipped for modern demands. The rapid, consumer-driven proliferation of distributed solar PV reaching an estimated 5.3 GW of net-metered capacity by March 2025 and potentially 20–22 GW total distributed solar has triggered reverse power flows, threatening local network stability and necessitating a transition to smart grid infrastructure. This review examines the technical, policy, and economic dimensions of integrating variable renewable energy (primarily solar and wind) into Pakistan’s grid through smart grid technologies. Pakistan possesses abundant renewable resources, with solar technical potential exceeding 100,000 MW (concentrated in Balochistan and Sindh) and significant wind corridors along the southern coast offering capacity factors of 32–35%. Key smart grid enablers include Advanced Metering Infrastructure (AMI) rollouts, enhanced SCADA with Phasor Measurement Units, HVDC transmission, Battery Energy Storage Systems (BESS), and AI/ML-based forecasting and optimization. Policy frameworks such as the Alternative and Renewable Energy Policy 2019, the Indicative Generation Capacity Expansion Plan (IGCEP) 2024–2034, and the Competitive Trading Bilateral Contracts Market (CTBCM) aim to achieve 30% renewable share (excluding large hydro) by 2030 and an 87% indigenization ratio. Despite declining levelized costs of electricity (LCOE) for utility-scale solar (27–45 USD/MWh by 2030) and wind, persistent barriers technical (outdated infrastructure), financial (high upfront costs), institutional (state monopoly legacy), and regulatory continue to slow deployment. The paper concludes that coordinated deployment of smart grid technologies, energy storage, market reforms, and international partnerships offers a viable pathway to a resilient, sustainable, and cost-competitive power system in Pakistan.