I don’t remember the details of the Transco Tariff approved by ERC earlier this year, but if indeed the average transmission cost is P1/kWh, as indicated here, then that is very very high.
The California ISO posts transmission costs here. For June 2006, it’s about the equivalent of P0.16/kWh.
Now this is admittedly an off-the-cuff comparison and there may well be details that impact such a comparison. But a 6:1 ratio leaves a lot of room for “details.”
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I do not know what costs go into transmission tariffs in California, but here in the Philippines, TransCo’s current rates include not just wheeling charges, but also ancillary charges. It has been said that the latter are more properly classified as generation instead of transmission. I think that ancillary charges account for about half of TransCo’s rates.
Ah, that’s an interesting point. A/S are not in California transmission costs