Photovoltaic system operation
The solar energy panel or photovoltaic panel changes the energy of the solar rays into low voltage or voltage (12 volts) electrical energy.
This energy accumulates in batteries to have light, radio, television, etc. at night.
There are consumers such as special lamps, radio recorders or b / w televisions that work directly with low voltage. These equipments can be connected directly to the battery.
1 Panel with a power of 55 W (watts) produces 12V (volts) with 4 A (amps) peak. This is equivalent to the power of a "normal bulb".
As the energy received during the day is accumulated in accumulators or batteries, consumers (for example lamps) can be connected for the necessary time.
This time is limited and depends on the number of installed photovoltaic panels (that work as generators), the number of batteries (that work as accumulators) and the number of connected lamps (that work as consumers).
The panels produce energy when there is sun or light, although they reach their maximum power when there is full sun (strong enough to produce clear shadows).
There are 6-8 hours of maximum sun per day, but an average of 3.5 hours of daily sun is calculated in this region, because there are dark clouds or rain. In addition there is no translation of the sun, so less solar energy reaches the surface of the panel due to the angle between the panel and the sun.
A normal bulb can be turned on for almost 3 hours (average).
Using an "energy saving bulb", which can be a fluorescent lamp, it can be turned on two and a half times longer than the "normal bulb": for 6 hours.