This is a tentative attempt to account for the energy required to produce the Hum.
The UK is chosen as an example because the distribution of Hum sufferers has been known for the past twenty years.
We begin with the area that the Hum is known to cover and for the UK, this approximately 230,000 sq. Km.

We next turn to the work of Allan Frey who estimated that the threshold energy of microwave hearing is 3 micro watts per sq. cm of which only 10% penetrates the bone and reaches the brain.
This would be a minimum energy requirement of 3,000 watts per sq. Km. and to cover the UK, 690 mega watts.

This calculation is for microwaves and not the proposed gravity waves, however, at the present time it appears the only figure available for non acoustic hearing.

The latest figures for the UK electrical grid show that approximately 43.26 Giga watts are conveyed of which 7.9% is lost, that is, some 3.4 Giga watts.
Some of this lost energy is consumed in heating the cables but not all, and there is ample energy loss to account for the Hum.

To repeat, this is only a tentative enquiry and Hum sufferers in other countries should make their own calculations.

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