In 2008, I authored a report titled Pakistan Power Sector Outlook: Appraisal of KESC in Post-Privatisation Period. The inquiry hinged on one deceptively modest question: how much gas and oil did KESC (now K-Electric, or KE) fleet of oil- and gas-fired power plants consume to generate a single unit of electricity?

That question sounds trivial. It is not. It is, in fact, one of the principal reasons Pakistan today exists in a state of perpetual mendicancy — borrowing from the IMF, from friendly states, from anyone willing to extend a line of credit, merely to keep the national grid alive. It is why an ordinary household bill has become an instrument of hardship, and why "circular debt," that interminable chain of unpaid obligations between power companies, fuel suppliers, and the exchequer, keeps ballooning year after year. Let me explain why this single question carries such weight, and why the people entrusted with answering it chose, instead, wilful deafness.

When a thermal power plant burns oil, gas, or coal to produce electricity, fuel accounts for roughly 60 to 70 % of the total tariff, the price consumers ultimately pay per unit. This is the dominant component of your bill, eclipsing transmission losses, theft, and even the corruption that so often draws public ire. The corollary is inescapable: a more efficient plant, one that consumes less fuel for the same output, will always yield cheaper power; an inefficient plant will remain expensive no matter what else is reformed. My 2008 findings showed KESC's plants consuming far more fuel than thermodynamically necessary, and this gap translated directly into inflated tariffs for the people of Karachi. I carried these findings to the Ministry of Climate Change and to NEPRA, the regulator ostensibly charged with shielding consumers from precisely this sort of profligacy. Nobody listened. Even the leading NGO that represented Pakistan at the UNFCCC — the United Nations body overseeing global climate negotiations — displayed scant interest; its priorities and funding relationships lay elsewhere, and my warning that Pakistan was drifting toward ruinous tariffs and chronic circular debt found no purchase. Seventeen years later, we are living the consequence.

Pakistan ratified the UNFCCC on June 1, 1994. Among the treaty's more consequential instruments was the carbon credit mechanism, which monetises pollution abatement and rewards efficiency gains. Under the Clean Development Mechanism (CDM), a thermal plant that becomes more efficient, burning less fuel and emitting less carbon dioxide can earn tradeable credits, generating revenue to help finance the........

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