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> The photovoltaic panels: PRODUCE ELECTRICITY FREE AND CLEAN WITH
THE SUN! RENEWABLE AND ALTERNATIVE ENERGY SOURCES.
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Photovoltaic
panels: ALTERNATIVE AND RENEWABLE ENERGY! How to
save on bills Enel and produce electricity!
WHAT
HAPPENS IN THE WORLD
 IMPORTANT:
AGREEMENT BETWEEN ABI (Assoc. ITALIAN BANKS) and
GSE (MANAGER ENERGY)
PREFERRED FUNDING WITH TRANSFER CREDIT: ln practice,
the financing is paid off by giving the bank the
income that the GSE is based on the amount of electricity!
The GSE has signed with several credit institutions
a framework agreement to cover all the amount to
pay the photovoltaic plant. |
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How
can make a photovoltaic system cost?
The capacity depends on many factors, such as geographic
location, size of the plant and consequently the power of
the same. Here are the yields calculated for 3 hypothetical
systems installed along the 44th Parallel: (all the amount
are refered to Italy)
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3KWp plant, occupying an area of 24mq, has a production
capacity of 4,200 kw / h per year, making it in 20
years, about 38,000 € of energy (if you have to buy
it) resetting also the costs of bill |
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20KWp plant, surface 160mq, can produce 28,000 Kw / h per
year, which makes about 20 years
€ 320,000 |
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50KWp plant, area 400sqm, is able to produce 70,000 Kw /
h per year, which makes about 20 years
€ 800,000 |
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Photovoltaic cell
In standard conditions (irradiation of 1000 W/m2 and temperature
of 25 ° C) can be taken at its ends a voltage of 0.5
V.
The provision of direct current is equal to about 3 amperes,
while the peak power generated is thus equal to 1.5 watts. |
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Photovoltaic
cells provide voltage and current are limited compared to
the values required by the appliances: they are therefore
electrically connected in series to form a robust and manageable
called photovoltaic module.
Most PV modules are typically mounted on a single support
structure forming a panel.
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The
"photovoltaic field, affected by solar radiation, will
produce electricity.
To optimize this production, solar panels, which in this
case more properly call themselves "photovoltaic panels"
will be prepared with guidance as possible toward the south
geographic and tilt angle with respect to ground (tilt angle)
about equal to the latitude of the site.
Optimum
Orientation of Solar Panels
For best performance, PV systems aim to maximize the time
they face the sun. Solar trackers aim to achieve this by
moving PV panels to follow the sun. The increase can be
by as much as 20% in winter and by as much as 50% in summer.
Static mounted systems can be optimized by analysis of the
Sun path. Panels are often set to latitude tilt, an angle
equal to the latitude, but performance can be improved by
adjusting the angle for summer and winter.
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