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Transcript of Solar Panels
WHAT IS IT?
HOW DO WE USE IT?
With solar cells, also called photovoltaic cells (PV's)
Literally "light energy"
Based on the project at CIBA
The sun provides 1000 watts of free energy per every square meter
Architectural Solar Canopy
Can withstand snow load and rain
Optimized for large scale deployment
Low operating cost
High system reliability
Tracking solar canopy
Tilts toward the sun as it moves across the sky (25% more electricity than traditional systems)
Greatest energy output per sq. ft.
Best for dryer climates
Ideal for places that don't require control of water run off
-The top of the panel has a glass protective cover, with another layer underneath it made of a anti-reflective material
- The back of the solar panels a back contact, which goes to a converter to turn the DC into usable AC Electricity
Solar energy is energy derived from the Sun's radiation. The Sun is an powerful source of energy and provides the Earth with as much energy every hour as we collectively use in a year worldwide.
Solar power is produced through collecting sunlight and converting it into electricity, through the use of solar panels. These panels contain solar cells in which this conversion takes place.
Specifically the conversion can be done in either two methods, which are:
-uses photoelectric effect to covert sunlight into electric current
CSP-Concentrated Solar Power
-uses mirrors, lenses, and tracking systems to focus desired area of sunlight into a small beam
-It uses Positive Silicone to negative silicone with a front contact and a semi-conductor layer in between them
-Silicon is a metalloid in which the free moving electrons can absorb energy such as sunlight
-The flow of silicon's electrons is called a current
-The photons of the sun hit the positive silicone, and those push the negative currant away creating electricity
produces no pollution
can reverse electric meter
only works in daytime
initial installation expensive
need large area
can be affected by weather or pollution
How it works
Why East Hartford?
First town supported by mayor, Town Council and Board of Education for the installation of solar panels
5 School Locations; EHHS, CIBA, O'Brien, O'Connell, and Norris
East Hartford's expenses for heating and electricity will be reduced by at least $800,000 over the course of the contract
The current contractor requires no money up-front from the town
The solar panels will cover 60% of the energy at each of these locations
Very little maintenance required over the 20 year life contract
Saves carbon dioxide from being released into the air
11 locations in East Hartford Total
History of Solar Panels
In, 1860, Auguste Mouchout learned about solar energy after thinking about industries and coal
In 1880, Mouchout learned how to conver solar radiation to mechanical steam power
He added reflectors for more steap
First 1/2 horse power water pump
In 1889, Tellier made the first solar collector on his roof which was similar to the solar panels today used for heating
In, 1870, Ericsson made first steam engine
1904, a factory had a 15 horsepower solar engine which was largest machine yet
SUN POWER CO.
made the largest solar field (10,000 square feet)
In 1979, the first solar calculator was invented (Sharp EL-8026)
Fixed-Tilt Solar canopy
Can be flat or tilted in one direction
Can withstand snow load and water
No moving parts
Low balance of system cost
Made of galvanized steel (coating steel with zinc)
Placed 36 inches deep
Covered/ held by cement
13 feet tall
Solar Panels over Wind Turbines
No moving parts
Very reliable with longer warranties
Very little maintenance
Very little monitoring needed