Augustin MOUCHOT (1823-1912), French Professor and Inventor
declares in 1869
« if in our climates, the industry can avoid to directly use the solar heat, it will necessarily happen a day where it will be forced well to come back to the work of the natural agents, because of the lack of combustible. That the reserves of coal and oil provide it a long time again their enormous calorific power, no doubt about that. But these reserves will exhaust themselves undoubtedly: hasn't wood become rarer than once, altough it's renewable ? Why wouldn't it be the same way one day with a provision of fuel where one draws so extensively without filling the emptiness ever which appears in it ?[...] One must conclude that it is prudent and wise not to fall asleep in this regard on a misleading security ".
Designer and builder of a 20 m² solar parabola in 1860
In full first industrial revolution, 150 years before the events that the World knows or will soon undergo,
Professor MOUCHOT predicts the crisis intrinsically contained in the
massive and blind recourse to the fossil energies. However he proposed
a big part of the solution. Today, Mankind is at the hour of energy savings, of the anguish generated by the climatic
warming up and (especially!) by the medium-term weariness of the fossil
oil ; as Professor MOUCHOT explained it, Mankind must orient his choice toward what the nature offers of
more abundant and ecological:
the solar energy.
One can read and can see in the medias that the path of the nuclear
fission solves all problems of climatic warming up for 150 years and
again more with the emergent surgenerating technologies.
Certainly ! But quid of the
And after the weariness of Uranium ?
one want a "peak Uranium" 100 years after the "peak oil" ?
One can read in some articles that the Mankind, by different ways,
tries to tame the thermonuclear fusion (the energy of the Sun!) in
laboratory to merge the dihydrogen that doesn't even exist on Earth...
Without talking about many almost-insurmountable technical obstacles;
only think up that a thermonuclear fusion requires at least 100 000
000°C, no material resists there for a long time...
A very uncertain "solution"
(many recognized scientists are doubting about its viability),
function in 2100 in the most optimistic scenari,
and of which the research, to short-term, are not of the quite applicable to
the civil energy...
In the domain of the
development of the renewable energies,
strength is to note
that the developed societies, at best make
the proof of a
regrettable most elementary common sense lack,
and at the worse, the
demonstration of an indifference as troubling as guilty.
and yet the man has an indefectible ally for again 5 billions of years :
one knows how to make already with the Sun ! The photovoltaic panels
In France, while covering only half of the existing surface of roofs with photovoltaic solar
panels, we can have an electrical production that is the
same or our yearly electric consumption, that is a
fraction of about 20 to 40% of our total energy consumption.
remarkable yet doubly restrained by 2 factors :
* France is not known to be excessively exposed to the sun...
* the photovoltaic panels have a very weak "solar
to electric" output (about 14%)
Very good article on this link (in French):
What Mankind has the moral and economic duties to exploit!
direct solar radiance is generated by the Sun, our star, whose S center
is situated to 150 000 000 kilometers of the center of the Earth. The
diameter of the sun is worth about 1 350 000 km. It is seen
therefore since the Earth under the angular diameter DA =
0.52°. When the
cloudy cover is absent, the direct solar radiance is the easiest to
exploit and to stock with the best output.
The Sun is the most natural and ecological thermonuclear
fusion power station and without it, life on Earth would be totally absent. Although it is a modest sized star, it releases enormous quantities of
energy, dispersing themselves mainly in the space as radiance. The Earth only intercepts a tiny fraction of this radiance, on the half of its surface, and
yet, the perfect catchment of this tiny fraction would provide 10000
times the present human energizing needs.
to the surface of the Earth, the Sun provides 10 000 times
energizing needs of the humanity...
What means, while taking an output of conversion
of 50% (that permits the SYCOMOREEN's PHRSD Concept , at the same time as it solves the storage issues), it
is sufficient to install some collectors on 1/5000th of the terrestrial
surface to drop completely fossil energy or others which
generating very cumbersome garbage.
For an electric
production equivalent to the total middle electric power currently
produced in France (54 GW), a
calculation gives for an output of 50% (possible
with the PHRSD Concept) and an average yearly solar powering flux of 120 W /
900 km² of catchment to soil, either a square of 30 km of
side. France counts 551 000 km²... it would be necessary to dedicate 0,16% of
the territory therefore to this hyperthermal solar catchment. Very few in comparison that the built surfaces which already
represent about 2%
For a production equivalent to the one of a nuclear power plant, (1 GW) the
square has a side equal to only 4,1 km for 16,7 km².
These are very little surfaces
to be compared to those of the incultivables or maritim territorial areas .
...And in order to guarantee a semi-decentralized production, a lot
more reliable, nothing would prevent to distribute these 900 km²
almost everywhere on the territory, to valorize currently huge areas
well sunny but very few exploited (rocky crests, oceans, roofs of
buildings, of factories, and even of
It lets think up to the huge potential
of any desert, nearly counting the millions of km² sunny 2 times more that the South of France (> 300
W / m²)...
Powers solar averages in
received W/m² on Earth and on the Europe / Africa Zone
On the Europe / Africa zone,
the development of the
direct solar energy would be one the most
highly applicable means to develop the African continent
and to solve both energizing AND especially
(too strong dependences on gas, oil and soon coal, entailing hyper pollution to CO2),
(misery, famines, wars generating painful emigrations...)