Home Solar Power Systems - Advantages of Domestic Solar Power

A photovoltaic solar power cell converts theA French scientist discovered how to do this in
energy in sunlight directly into electrical energy, iethe 19th century already and since then,
a voltage and current. Renewable Electrical powerphotovoltaic improvements, tax incentives and a
is provided by negatively charged electrons thatrising industry have put pv energy in the reach of
run from the one location to another.any household that wants renewable power.
The scientific explanation can be resumed asA multicrystalline silicon solar cell averages a
follows: in metals electrons can travel easily andconversion efficiency of 13 to 16%, which means
therefore we call them conductors. Solar cells arethat a solar panel of 1 meter by 1 meter (about 9
made of semiconductors. The famous (andsquare feet) will be able to supply up to 100
oldest) is the crystalline-silicon solar cell.Watts of power, generating between 80 to 150
A feature of semiconductors is that comparedKwh of electricity each year.
with metals, which are good conductors, theyIn fact, you can make your own solar home
allow little electrons movement. Their specialpower source by building solar panels yourself for
feature is that with the absorption of lightas little as 27$ a piece if you set your mind to it
(consisting of energy packets, or photons)and if you know how. There are numerous DIY
electrons are released, which then shift,leaving anguides available online that require but a small
empty place on a positively charged "hole". Suchinvestment. The advantage of solar energy is that
electrons (or rather: the electron-hole pair) in factit will not run out any time soon, that it is not
carry the energy of the photon in them and thepolluting and that there is enough of it for
trick is in tapping that energy from the cell.everyone.