Concentrating photovoltaics
Stendhal
The PS10 project, is an 11 MW Solar Thermal Power Plant 15 km west of
the city of Seville in Southern Spain.
The plant is the first Solar Central Receiver System of its kind and
generates 11 Megawatts (MW) of electricity, enough to power up to
6,000 homes although it is expected that when the entire project is
completed it should generate enough electricity to cover the needs of
the 600,000 population of Seville.
It works by concentrating the reflected rays from each of the 624
mirrors with a mobile curved reflective surface measuring 120 square
meters to the top of a 115 meter where a solar receiver turns water
into steam. The turbine drives a generator, producing electricity.
Compared to conventional flat panel solar cells, concentrating
photovoltaics is more cost efficient because the solar collector is
less expensive than an equivalent area of solar cells.
Concentrating photovoltaics operates most effectively in sunny
weather, since clouds and overcast conditions create diffuse light
which essentially can not be concentrated.
http://www.youtube.com/watch?v=0OkqJw1oTMk
The PS10 solar power plant is promoted by Solúcar Energía, an Abengoa
Group company.
This project has counted with the co-funding from the 5th European
Union Framework Program. Activities of Solgate Technology are still
continuing today, with the presence of Solúcar R&D in the Solhyco
Project which intent to obtain the hybridization of the system
developed on the Solgate stage with gasified biomass. The Solhyco
Project counts with the collaboration of renowned research centers
such as DLR and Ciemat, and which has been co-funded under the 6th
European Union Framework Program.
Because concentrating photovoltaics perform better in environments
with clear skies, Europe is also looking across the Mediterranean to
the Sahara desert, where solar farms could provide clean electricity
for the whole of Europe, according to EU scientists working on an
scheme to build a €4.500.000 European supergrid that would allow
countries across the continent to share electricity from abundant
green sources.
In addition, because the sunlight in this area is more intense, solar
photovoltaic (PV) panels in northern Africa could generate up to three
times the electricity compared with similar panels in northern Europe.
Arnulf Jaeger-Walden of the European commission’s Institute for
Energy, speaking at the Euroscience Open Forum in Barcelona, said it
would require the capture of just 0.3% of the light falling on the
Sahara and Middle Eastern deserts to provide all of Europe’s energy
needs.
Jaeger-Walden explained how electricity produced in solar farms in
Africa, each containing power plants generating around 50-200MW of
power, could be fed thousands of miles across European countries by
using high-voltage direct current transmission lines instead of the
traditional alternating current lines. Energy losses on DC lines are
far lower than AC ones where transmission of energy over long
distances is uneconomic.
--
Kind Regards,
Rafa Minuesa
http://rafaelminuesa.wordpress.com/2008/08/16/concentrating-photovoltaics/
Mauried
<rafa...@hotmail.com> wrote:
>
>
>The PS10 project, is an 11 MW Solar Thermal Power Plant 15 km west of
>the city of Seville in Southern Spain.
>
>The plant is the first Solar Central Receiver System of its kind and
>generates 11 Megawatts (MW) of electricity, enough to power up to
>6,000 homes although it is expected that when the entire project is
>completed it should generate enough electricity to cover the needs of
>the 600,000 population of Seville.
>
>It works by concentrating the reflected rays from each of the 624
>mirrors with a mobile curved reflective surface measuring 120 square
>meters to the top of a 115 meter where a solar receiver turns water
>into steam. The turbine drives a generator, producing electricity.
>
>Compared to conventional flat panel solar cells, concentrating
>photovoltaics is more cost efficient because the solar collector is
>less expensive than an equivalent area of solar cells.
>Concentrating photovoltaics operates most effectively in sunny
>weather, since clouds and overcast conditions create diffuse light
>which essentially can not be concentrated.
>
>http://www.youtube.com/watch?v=3D0OkqJw1oTMk
>
>The PS10 solar power plant is promoted by Sol=FAcar Energ=EDa, an Abengoa
>Group company.
>This project has counted with the co-funding from the 5th European
>Union Framework Program. Activities of Solgate Technology are still
>continuing today, with the presence of Sol=FAcar R&D in the Solhyco
>Project which intent to obtain the hybridization of the system
>developed on the Solgate stage with gasified biomass. The Solhyco
>Project counts with the collaboration of renowned research centers
>such as DLR and Ciemat, and which has been co-funded under the 6th
>European Union Framework Program.
>
>Because concentrating photovoltaics perform better in environments
>with clear skies, Europe is also looking across the Mediterranean to
>the Sahara desert, where solar farms could provide clean electricity
>for the whole of Europe, according to EU scientists working on an
>scheme to build a =804.500.000 European supergrid that would allow
>countries across the continent to share electricity from abundant
>green sources.
>In addition, because the sunlight in this area is more intense, solar
>photovoltaic (PV) panels in northern Africa could generate up to three
>times the electricity compared with similar panels in northern Europe.
>Arnulf Jaeger-Walden of the European commission=92s Institute for
>Energy, speaking at the Euroscience Open Forum in Barcelona, said it
>would require the capture of just 0.3% of the light falling on the
>Sahara and Middle Eastern deserts to provide all of Europe=92s energy
>needs.
>
>Jaeger-Walden explained how electricity produced in solar farms in
>Africa, each containing power plants generating around 50-200MW of
>power, could be fed thousands of miles across European countries by
>using high-voltage direct current transmission lines instead of the
>traditional alternating current lines. Energy losses on DC lines are
>far lower than AC ones where transmission of energy over long
>distances is uneconomic.
>
>--
>Kind Regards,
>Rafa Minuesa
>http://rafaelminuesa.wordpress.com/2008/08/16/concentrating-photovoltaics/
You have lost me here completely.
You are describing a Solar thermal Plant that generates electricity by
turning water into steam.
There is no photovoltaic involvement at all.
Its simply concentrating sunlight on an absorber to heat water.
Eye in the Sky
>
> You have lost me here completely.
> You are describing a Solar thermal Plant that generates electricity by
> turning water into steam.
> There is no photovoltaic involvement at all.
> Its simply concentrating sunlight on an absorber to heat water.
High concentration photovoltaics (HCPV) systems employ concentrating
optics consisting of dish reflectors or fresnel lenses that
concentrate sunlight to intensities of 300 suns or more.
http://en.wikipedia.org/wiki/Concentrating_solar_power#High_concentration_photovoltaics_.28HCPV.29
Jean Marc
"Eye in the Sky" <rafa...@gmail.com> a �crit dans le message de news:
eba5fe7a-59a1-4227...@h40g2000prf.googlegroups.com...
<High concentration photovoltaics (HCPV) systems employ concentrating
<optics consisting of dish reflectors or fresnel lenses that
<concentrate sunlight to intensities of 300 suns or more.
<http://en.wikipedia.org/wiki/Concentrating_solar_power#High_concentration_photovoltaics_.28HCPV.29
Concentration, OK. Photovolatics= direct energy conversion, from photons to
electrons with no other form of energy between.
Mauried
<rafa...@gmail.com> wrote:
>On Dec 13, 9:18=A0am, maur...@tpg.com.au (Mauried) wrote:
>> On Sat, 12 Dec 2009 16:52:45 -0800 (PST), Stendhal
>>
>>
>>
>> <rafam...@hotmail.com> wrote:
>>
>> >The PS10 project, is an 11 MW Solar Thermal Power Plant 15 km west of
>> >the city of Seville in Southern Spain.
>>
>> >The plant is the first Solar Central Receiver System of its kind and
>> >generates 11 Megawatts (MW) of electricity, enough to power up to
>> >6,000 homes although it is expected that when the entire project is
>> >completed it should generate enough electricity to cover the needs of
>> >the 600,000 population of Seville.
>>
>> >It works by concentrating the reflected rays from each of the 624
>> >mirrors with a mobile curved reflective surface measuring 120 square
>> >meters to the top of a 115 meter where a solar receiver turns water
>> >into steam. The turbine drives a generator, producing electricity.
>>
>> >Compared to conventional flat panel solar cells, concentrating
>> >photovoltaics is more cost efficient because the solar collector is
>> >less expensive than an equivalent area of solar cells.
>> >Concentrating photovoltaics operates most effectively in sunny
>> >weather, since clouds and overcast conditions create diffuse light
>> >which essentially can not be concentrated.
>>
>> >http://www.youtube.com/watch?v=3D3D0OkqJw1oTMk
>>
>> >The PS10 solar power plant is promoted by Sol=3DFAcar Energ=3DEDa, an Ab=
>engoa
>> >Group company.
>> >This project has counted with the co-funding from the 5th European
>> >Union Framework Program. Activities of Solgate Technology are still
>> >continuing today, with the presence of Sol=3DFAcar R&D in the Solhyco
>> >Project which intent to obtain the hybridization of the system
>> >developed on the Solgate stage with gasified biomass. The Solhyco
>> >Project counts with the collaboration of renowned research centers
>> >such as DLR and Ciemat, and which has been co-funded under the 6th
>> >European Union Framework Program.
>>
>> >Because concentrating photovoltaics perform better in environments
>> >with clear skies, Europe is also looking across the Mediterranean to
>> >the Sahara desert, where solar farms could provide clean electricity
>> >for the whole of Europe, according to EU scientists working on an
>> >scheme to build a =3D804.500.000 European supergrid that would allow
>> >countries across the continent to share electricity from abundant
>> >green sources.
>> >In addition, because the sunlight in this area is more intense, solar
>> >photovoltaic (PV) panels in northern Africa could generate up to three
>> >times the electricity compared with similar panels in northern Europe.
>> >Arnulf Jaeger-Walden of the European commission=3D92s Institute for
>> >Energy, speaking at the Euroscience Open Forum in Barcelona, said it
>> >would require the capture of just 0.3% of the light falling on the
>> >Sahara and Middle Eastern deserts to provide all of Europe=3D92s energy
>> >needs.
>>
>> >Jaeger-Walden explained how electricity produced in solar farms in
>> >Africa, each containing power plants generating around 50-200MW of
>> >power, could be fed thousands of miles across European countries by
>> >using high-voltage direct current transmission lines instead of the
>> >traditional alternating current lines. Energy losses on DC lines are
>> >far lower than AC ones where transmission of energy over long
>> >distances is uneconomic.
>>
>> >--
>> >Kind Regards,
>> >Rafa Minuesa
>> >http://rafaelminuesa.wordpress.com/2008/08/16/concentrating-photovolt...
>>
>> You have lost me here completely.
>> You are describing a Solar thermal Plant that generates electricity by
>> turning water into steam.
>> There is no photovoltaic involvement at all.
>> Its simply concentrating sunlight on an absorber to heat water.
>
>High concentration photovoltaics (HCPV) systems employ concentrating
>optics consisting of dish reflectors or fresnel lenses that
>concentrate sunlight to intensities of 300 suns or more.
>http://en.wikipedia.org/wiki/Concentrating_solar_power#High_concentration_p=
>hotovoltaics_.28HCPV.29
Yes, but you have left out the most important bit, which is that the
concentrated sunlight is focussed onto photvoltaic solar cells.
The OPs example is of a Solar Thermal Power station, which has no
Solar Voltaic Cells involved at all.
Randy
"Mauried" <mau...@tpg.com.au> wrote in message
news:4b26c192....@news.tpg.com.au...
plant in Spain and a possible P.V. plant in Africa.
For this matter, I have wondered why (other than cost) we in Nebraska do not
add some form of solar steam to supplement our coal fired plants that sit on
large acres of seemingly unused land (probley set aside for blow-up safety
zone?)
Perhaps our proposed new federal cap and tax legislation might drive our
power companies in that direction.
Any way, I'll stay away from the politics on that subject but it would be
nice to see some slow down on the strip mining of coal in Wyoming.
Take care
Randy