Hybreds for Green energy

update:
The 'Homepower' article continues to to evolve with more discussion added to the outline provided.

After reviewing the information available via a Google search, it is
clear that the price of solar cells will drop dramatically one day soon,
more reasonable ~$0.50 kw/hour. However, we must keep in mind that the
sun shines an average for less than half a day per year. Not only do we
have to contend with the earth's shadow but also cloudy, rainy days.
And, keep in mind that trees, tall buildings and far northern latitudes
also lessen the sunshine that can produce electricity produced by solar
(photovoltaic) cells. We also must consider that converting the DC
current to AC current produces an energy (heat) loss within the Inverter
and or storage devices such as a battery, be they lead acid or other.
Each and very device placed between the source - solar panels - and the
use - home heating, lighting, cooling, etc. - produces heat and thus
robs us of our energy.

But how can we overcome such a problem? It is clear that we cannot rely
on solar cells along. We are developing low cost highly efficient solar
cells but need to incorporate the energy produced into a system that is
also low cost and highly efficient. Note, too, that high efficiency and
low cost go hand-in-hand. That is, the higher the efficiency, the lower
the cost of the energy and the lower the cost of the equipment, the more
tolerant of energy losses can be accepted. However, it is important that
any system be able to deliver ~5kw/hour at a price, including equipment
costs, comparable to current grid prices, to operate any reasonable home.

I am proposing a schema which I feel will work. In a nutshell, it is
solar cells to a water hydrolysis unit to produce hydrogen and oxygen.
The oxygen is released to the atmosphere and the hydrogen sent to a
storage unit, at least one and perhaps two 500 gal. pressure tank. The
hydrogen is now available on demand for a Solid Oxide Fuel Cell capable
of producing at least the ~5kw/hour output. This entire system can also
be tied into the grid to produce an income for the extra electricity.

The choice of a Solid Oxide Fuel Cell (SOFC) is to take advantage of
other available fuels besides hydrogen on which the SOFC is capable of
using as a fuel. This can include Methane (natural gas), Methanol,
Ethanol, and other liquid alcohols. All of these alternate fuels can be produced by
bio-digestion of home and garden wastes.

As an additional benefit for the Green Energy schema, excess hydrogen
produced can be fed back into the natural gas distribution system to
"enrich" the natural gas supply. This can work in reverse, too, as the hydrogen can be produced in remote desert regions where the sun shine is abundant and transmitted through the natural gas pipelines for distribution throughout the land. The hydrogen does contain more energy
than to the natural gas (methane) and is actually much safer than is
natural gas (methane).

Finally, this schema can be adapted for vehicular uses, too. In fact,
one's electric car can be "recharged" with hydrogen for fuel cells and
or highly efficient batteries, such as Lithium-ion batteries, while the
car sits in the grocery store or business parking lots. The recharge can
also be done from the home-power hydrogen/fuel cell system, too, as we
sleep. All of this mobile schema can be applied to our lawnmowers,
tractors, and other small tools.