The brushless direct current motor (BDCM) used in attitude control and energystorage flywheel features a structure of largeequivalent air-gap and large ratio ofdiameter to length.
There is a large funding gap in providing energy access for the poor which has not been properly addressed by existing financial mechanisms and institutions.
Other options for filling the energygap would include making greater use of the large number of small generators that the National Grid can call on in time of shortage, and extending the use of contracts that allow the grid to interrupt supply to industrial customers at peak periods.