IGCEP 2025-35 sensitivities reported in April 2026 included cases with and without a candidate interconnection between the National Grid Company system and K-Electric, plus a case with KE’s committed renewables. Installed capacity outcomes shifted across those sensitivities, underscoring a structural fact outsiders often miss: Pakistan still plans and operates as linked but distinct electricity systems. Karachi’s utility island and the national grid can trade more efficiently if wires, contracts, and governance allow it.
Interconnection is not a takeover narrative. It is an engineering option to move surplus and cover deficits, to improve renewable absorption, and to reduce the need for duplicate firm capacity. Political ownership fights should not be allowed to veto least-cost electrons. Transition Economics Institute supports transparent wheeling and interconnection tariffs that let power flow when hydraulics and economics agree.
KE’s own renewable commitments change the value of the link. A Karachi system with more daytime solar may want night support from the national fleet; a national system with southern wind may want Karachi offtake. Hourly modelling beats slogans about autonomy.
Regulatory dualism complicates investment. Investors need clarity on which operator guarantees firm transmission rights across the interface. ISMO and KE system operations must publish interface procedures that match Grid Code discipline.
As of late September 2026, with DISCO privatisation advancing in the north and centre and net billing reshaping loads everywhere, failing to progress interconnection studies would be a self-inflicted congestion tax. Build the studies, publish the costs, then decide. Do not leave a twenty-first-century economy straddling twentieth-century grid politics without a number on the table.
Institutional accountability remains the missing hinge. NEPRA, the Power Division, CPPA-G, the system operator, and the DISCOs each hold a piece of the puzzle, yet none owns the full cash-conversion cycle. Until reporting, incentives, and penalties are aligned to the same monthly cash target, reform statements will continue to outrun results. Transition Economics Institute will keep measuring progress by whether billed energy turns into settled rupees, whether fixed generation obligations shrink in line with the demand profile, and whether consumers see durable relief rather than a temporary rebate financed by another round of arrears.