Solar Power Powered
Solar Power Powered
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 SOLAR PANEL RV Universal Rooftop Solar Panel Tilt Mount Kit RV Universal Roofto  US $55.99
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 Portable Solar Generator US $1,799.99
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 48WATT 12VOLT PVC SOLAR PANEL CHARGER 9 CORD W LIGHTER PLUG BATTERY CLIP END US $35.99
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 8WATT 12VOLT CRYSTALLINE 12V 8W GATE OPENER CHARGER SOLAR PANEL W ALUMINUM FRAME US $35.99
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 6VOLT 3WATT ALUMINUM FRAME SOLAR POWER PANEL 6V 3W DC BATTERY CHARGER W LEGS US $24.99
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 Solar Junction Box PV BTBL0903 1 diode 8A 100W 90cm wire with MC4 plug US $12.00
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 Solar Junction Box PV BTBL0907 1 diode 8A 100W 90cm wire with MC4 plug US $15.00
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 Tabbing Bus wire 3 Schottky Diodes 1 Kester 951 flux pen for DIY solar panel US $21.00
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 6V 50mA 03W mini solar panel solar power 36v battery small solar charge led ne US $.99
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 80 WHOLE 3x6 Solar Cell Full Tab De tab DIY Solar Panel US $43.00
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 31 2 GREEN DC 2V LCD Digital Volt Panel Meter Voltmeter US $10.99
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 Solar cells 3x6 Tabbed US $58.94
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 Solar cells 3x6 Tabbed 40 total US $58.94
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 84 3x6 Solar Cell DIY Solar Panel B Grade Value Pack US $18.99
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 GREEN DC 50V LED Digital Volt Panel Meter Voltmeter US $10.99
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 Tabbed 3x6 Solar Cells DIY Solar Panel Value Pack US $12.99
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 10 Watt Solar Cell power panel 10W 12 Volt Battery Charger Mono Monocrystalline US $29.99
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 40 3x6 Solar Cell Kit with Tabbing Bus Flux Diode US $48.99
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 FREE SOLAR ENERGY DIY Solar Cell Charge Controller InverterBatteryMore US $8.99
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 New Design 12V 100W Portable USB electric Solar Power System generators US $299.99
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 Delux Solar Battery Charger For AA AAA C D Batteries US $14.99
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 1KW Fantastic 3x6 Solar Cells 550 Cells Plus Extras US $247.50
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 Mini Solar Powered Toy Car Racer Fun Gadget For Kids NEW US $1.01
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 100 FACTORY TABBED solar cells 3x6 18W B GRADE with split chip WORKING save $ US $57.01
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 NEW Goal Zero Guide 10 Plus Mobile Kit USB Power Pack Goal0 0 Nomad 35 solar US $71.00
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 6 pcs 03w solar panel solar cell with water proof film US $.99
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 330 100m x 2mm TAB Wire 3x6 Solar Panel Cells SOLDERED ON SPOOL US $36.31
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 3W10Pcs 03w solar panel solar cell with wealth proof film US $.99
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 1KW Nearly Whole 3x6 Short Full Tabbed Mixed Solar Cells for DIY Solar Panel US $80.00
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 80 Tabbed Solar Cells Pre Strung Quick Solar Panel USA US $73.00
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 130w solar panel 24V system 130 watt High efficiency US $209.00
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 40 3x6 Solar Cells for DIY Solar Panel Untabbed Poly Crystalline Everbright US $20.50
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 Learn How Solar Cells DIY Panel Kit Encapsulation Kit in One Pack Everbright US $52.05
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 50 6x6 Mono Solar Cells for DIY Solar Panel 156mm High Power Cells Everbright US $78.00
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 15WATT 12VOLT PVC SOLAR PANEL W 7AMP CHARGE CONTROLLER MOUNTING KIT 12V 15W 7A US $89.99
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 180Watt2x90W12V Monocrystal PV Solar Panel 12V BatteryRVGrid TieUL25yr Wr US $349.00
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 100 MONO High Power 6x6 Solar Cells 41w Total 410 Watts DIY Panel Everbright US $152.50
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 76 pcs 3x6 Fully Tabbed Poly Solar Cells DIY Solar Panel Kit w Wire Flux Diode US $60.00
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 8WATT 12VOLT CRYSTALLINE 12V 8W ALUMINUM SOLAR PANEL BATTERY CHARGER WITH J BOX US $36.99
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 405WATT SOLAR ENERGY 3 PANEL DIY HOME POWER SYSTEM KIT 4 SLA BATTERIES CONTROL US $3,299.95
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 6 VOLT 3WATT ALUMINUM FRAME SOLAR POWER PANEL 6V DC BATTERY CHARGER W TILT LEGS US $24.98
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 45WATT 3 PANEL SOLAR KIT W CHARGE CONTROLLER POWER INVERTER RACK 18AH BATTERY US $319.99
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 100WATT SOLAR ENERGY POWER 2 PANEL KIT W DIGITAL CHARGE CONTROLLER BRACKETS US $449.99
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 19 KW Sharp Multi Solar Panels 60 Cells B grade UL CEC ND 240QCJ BX USA 8 240w US $1,300.00
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 1200w grid tie power inverter dc 28 52v to ac 220v 240v US $270.00
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 NEW 40 3x6 18W each for Diy Panel Kit tabbing bus Wire Flux Pen US $53.99
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 NEW 18 3x6 18W each for Diy Panel Kit tabbing bus Wire Flux Pen US $47.99
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 Sunny Boy Webbox Data Logger US $399.99
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 1000V 10A Solar Junction Box Solar Cells Panel DIY 949429mm 4mm2 3 rails Diode US $9.28
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 10pcs PV Solar Junction Box for 2 10W module 2 rails504010mm screws inlcuded US $16.00
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 8 pcs 03w solar panel solar cell with water proof film US $3.04
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 PV TUV Solar Junction Box for Solar panel Crystalline Silicon 150 250W MC4 Cab US $30.99
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 38 3x6 Tabbed Solar Cell Kit Flux Bus Encapsulation US $84.99
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 1 pc Flux PEN good for Solar cells Panels US $1.00
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 Solar Regulator 10A 12 24v Solar Charge Controller charging battery PWM new US $10.50
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 MPPT Solar Regulator 10A 100V 12 24v auto sensing Solar Charge Controller US $69.99
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 8 pcs 03Watt solar panel solar cell with water weather proof film US $1.25
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 10 pcs 03W solar panel solar cell with water weather proof film US $1.25
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 8 pcs 03W Solar Panel Solar Cell with Weather Water proof film US $3.04
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 35 Watts Tab Broken 3x6 Solar Cells 125g De Tab US $4.99
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 115W 115 WATT 12V MONOCRYSTALLINE SOLAR PANEL PV CABLE US $289.85
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 10Watt 12Voltage Solar Panel 10W 12V MONO SOLAR PANEL US $33.99
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 New MONO Solar Cell Panel 18V 30W 211x202 Power Battery US $.59
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 80 243M x 5mm BUS Wire for Solar Cells make Panel US $27.01
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 80W2X40W Poly Solar Panel Energy Power Charger for Battery Car Camp★US SHIP★ US $99.99
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 85w 12V Mono Solar Panel Kit DIY Charger for Boat Motorcycle Car Laptop Battery US $26.00
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 10 pcs 03w solar panel solar cell with water proof film US $1.00
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 5 pair NEW 30Amp MC4 adapter Solar connector for solar cells panels 1F2M 1M2F US $15.50
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SOLAR THERMAL POWER – THE BASICS
SOLAR THERMAL POWER – THE BASICS
POWER FROM THE SUN
The principles of solar thermal power conversion have been known for more than a century; its commercial scale-up and exploitation, however, has only taken place since the mid 1980s.
With these first large-scale 30-80 MW parabolic trough power stations, built in the California Mojave desert, the technology has impressively demonstrated its technological and economic promise.
With few adverse environmental impacts and a massive resource, the sun, it offers an opportunity to the countries in the sun belt of the world comparable to that currently being offered by offshore wind farms to European and other nations with the windiest shorelines.
Solar thermal power can only use direct sunlight, called ‘beam radiation' or Direct Normal Irradiation (DNI), i.e. that fraction of sunlight which is not deviated by clouds, fumes or dust in the atmosphere and that reaches the earth's surface in parallel beams for concentration. Hence, it must be sited in regions with high direct solar radiation. Suitable sites should receive at least 2,000 kilowatt hours (kWh) of sunlight radiation per m2 annually, whilst best site locations receive more than 2,800 kWh/m2/year.
Typical site regions, where the climate andvegetation do not produce high levels of atmospheric humidity, dust and fumes, include steppes, bush, savannas, semi-deserts and true deserts, ideally located within less than 40 degrees of latitude north or south. Therefore, the most promising areas of the world include the South-Western United States, Central and South America, North and Southern Africa, the Mediterranean countries of Europe, the Near and Middle East, Iran and the desert plains of India, Pakistan, the former Soviet Union, China and Australia.
In many regions of the world, one square kilometre of land is enough to generate as much as 100-130 gigawatt hours (GWh) of solar electricity per year using solar thermal technology. This is equivalent to the annual production of a 50 MW conventional coal- or gas-fired mid-load power plants. Over the total life cycle of a solar thermal power system, its output would be equivalent to the energy contained in more than 5 million barrels of oil2).
However, this large solar power potential will only be used to a limited extent if it is restricted by regional demand and by local technological and financial resources. If solar electricity is exported to regions with a high demand for power but few indigenous solar resources, considerably more of the potential in the sun belt countries could be harvested to protect the global climate.
Countries such as Germany are already seriously considering importing solar electricity from North Africa and Southern Europe as a way of contributing to the long-term sustainable development of their power sector. However, priority should be given primarily to supply for legitimate indigenous demand.
TURNING SOLAR HEAT INTO ELECTRICITY
Producing electricity from the energy in the sun's rays is a straightforward process: direct solar radiation can be concentrated and collected by a range of Concentrating Solar Power (CSP) technologies to provide medium- to hightemperature heat.
This heat is then used to operate a conventional power cycle, for example through a steam turbine or a Stirling engine. Solar heat collected during the day can also be stored in liquid or solid media such as molten salts, ceramics,
concrete or, in the future, phase-changing salt mixtures. At night, it can be extracted from the storage medium thereby continuing turbine operation.
Solar thermal power plants designed for solar-only generation are ideally suited to satisfying summer noon peak loads in wealthy countries with significant cooling demands, such as Spain and California. Thermal energy storage systems are capable of expanding the operation time of solar thermal plants even up to base-load operation. For example, in Spain the 50 MWe AndaSol plants are designed with six to 12 hours thermal storage, increasing annual availability by about 1,000 to 2,500 hours.
During the market introduction phase of the technology, hybrid plant concepts which back up the solar output by fossil cofiring are likely to be the favoured option, as in commercially operating parabolic trough SEGS plants in California where some fossil fuel is used in case of lower radiation intensity to
secure reliable peak-load supply.
Also, Integrated Solar- Combined Cycle (ISCC) plants for mid- to base-load operation are best suited to this introduction phase. Combined generation of heat and power by CSP has particularly promising potential, as the high-value solar energy input is used to the best possible efficiency, exceeding 85%. Process heat from combined generation can be used for industrial applications, district cooling or sea water desalination. Current CSP technologies include parabolic trough power plants, solar power towers, and parabolic dish engines (see Part Two).
Parabolic trough plants with an installed capacity of 354 MW have been in commercial operation for many years in the California Mojave desert, whilst solar towers and dish engines have been tested successfully in a series of demonstration projects.
About the Author
<p>RunGreenPower.com will teach you how to build solar & wind power systems for
your home within a weekend.</p>
<p>Check It Now: <a href="http://www.rungreenpower.com/2010/07/10/homemade-solar-cells/">Homemade Soalr Cells</a></p>