Electricity from Solar Energy

Submitted by:

Amratansh Gupta Manish kr Meena Chandrakant Kumar Shubham Shankarwal Ankita

The burning of fossil fuels for energy is the major source of carbon emissions.

Almost negligible carbon emission from solar energy hence reduction in carbon emission.

Sun is the source of energy which never gets “disappear”.

Applications

STREET LIGHT

SOLAR CAR

Solar cells are devices that convert visible sunlight into electricity.

As sunlight falls on a bi-layer semi-conductive device, a potential difference is created between the barriers.

The voltage has the ability to produce a current in an external circuit, thereby “making” useful electricity

N-type

P-type

The solar energy captured by photovoltaic (PV) technology is renewable and abundant.

Solar energy can be used in remote areas where it is too expensive to extend the electricity power grid (distribution/transmission lines).

PV installations can operate for many years with little maintenance or intervention after their initial set-up.

Silicon dust from solar panels can result in lung diseases.

The functionality of PV power generation varies not only daily, but also seasonally with cloud cover, sun angle, and number of daylight hours.

Large areas of land are required to capture the suns energy. Collectors are usually arranged together especially when electricity is to be

produced and used in the same location.

Net worth of Solar market is nearly $350 billion.

Employment opportunities:

According to Forbes: Top billionaires who have major money from Solar energy work field**:

Name Country “Solar” net worth

Source of “Solar” wealth

Total Net worth

Zhu Gongshan

China $1.4 billion

GCL Poly Energy (solar)

$1.7 billion

Elon Musk* U.S. $1.2 billion

SolarCity $2 billion

Fan Zhaoxia China $1 billion

Beijing Jing. Tech

(solar) $1 billion

Christy

Walton U.S. $570 million First Solar $24.8 billion

Adi Godrej India $480 million

Mangrove

preserves $2.9 billion

Vinod Khosla U.S. $350 million

Kior, Amyris,

startups $1.3 billion

*also included stock share of Tesla Motors **Up to April 2012

Efficiency of solar panels depends on the range of frequencies of light that strikes the surface . So they can give higher efficiency if we split the light into different frequency ranges and direct the beams onto the cells tuned to these frequencies.

We can place solar panels in the barren lands instead of keeping it away uselessly.

Building a new home is the best time to design and orient the

home to take the advantage of the sun’s rays.

Solar energy based street lights can be employed by govt.