As the Big Island deploys more geothermal, its electricity rates will come down relative to O‘ahu’s.

It won’t be too long before the Big Island’s electricity rates are lower than O‘ahu’s.

See HECO rates per island here.

Should O‘ahu try to levelize rates, in order to take advantage of some of this decrease in electricity cost? Or should it wait for a cable, which would lower electric costs more?

For various reasons, it is better to wait for a cable.

To be continued