Of course, we should use as
much electricity directly as possible (e.g. in plug - in hybrid vehicles), but when we need dense chemical fuels, this is a valid option.
Not exact matches
And unlike incandescents, which generate a lot of waste heat, LEDs don't get especially hot and use a
much higher percentage of
electricity for
directly generating light.
You would be
much better off to
directly convert the energy to
electricity and use a point of use heating system.
An analysis by the American Solar Energy Society indicates that burning cellulosic crops to
directly generate
electricity is
much more efficient than converting them to ethanol.
The wind power industry argues that there are «no direct subsidies» but it involves a total subsidy of as
much as # 60 per MWh which falls
directly on
electricity consumers.
Because using heat
directly is more
much efficient that first converting heat to
electricity, the overall efficiency of the high - temperature system is
much higher.
Photovoltaic systems use conducting material to convert sunlight
directly to
electricity and need only nominal amounts of water to wash their solar panels, compared with the traditional steam - turbine solar that uses
much larger volumes of water for cooling towers.
The physical system, however, of
electricity as the authors
directly phrase it is one that operates at a
much faster rate than any other market.Therefore in this physical power system the supply and demand = generation and load must be balanced second by second or else there is collapse.