Q: Traditionally households pay a higher unit price for usage of active power to compensate for the cost of unmetered reactive power. However the power factor (pf) of inverters used in roof top solar systems is set to 1.0 (or very close to 1.0). So users of PV systems produce their own active power and even export the excess to the network and get money for it but they import any needed reactive power for inductive loads (motors etc.) from the network at no cost. This leaves other utility customers to pick up the cost of the reactive power. Is this fair?
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