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When distributed solar meets a centralised power system

World 1 source 1 country 🔦 Under-reported 59m ago

Pakistan's solar debate often gets reduced to immediate questions: what rate will exported units get? And, are solar users shifting costs onto others? But once distributed solar reaches meaningful scale, the deeper issue is no longer just pricing.

Pakistan's first solar phase was driven by consumer economics. Grid electricity became expensive, service quality uneven, solar equipment cheaper, and consumers responded rationally. But when many users generate part of their own electricity, solar stops being only a consumer decision and becomes a power-system issue.

This is not because solar is a mistake. It is because Pakistan's electricity system was built around centralised logic: large generation, top-down planning, one-way power flows, and consumers visible mainly through conventional billing. Distributed solar changes that picture.

It places generation at the edge of the system, unevenly across households, businesses, industries, locations and feeders. Solar therefore needs to be discussed in system space, not only tariff space. Tariff space is where most public arguments still sit: export rates, billing treatment, unit savings, and the cost burden on non-solar users.

System space asks harder questions. What happens to feeder-level load patterns? How much visibility does the utility have?

What happens to evening demand once daytime self-generation becomes common? How should shared networks recover costs when some users self-supply but still depend on the wires? These are not anti-solar questions.

Summary from source
Read the full story at the source Express Tribune (Karachi, Pakistan) · PK
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