Abstract :
Green house is a building where crops are cultivated. Green house made of glass
or plastic. Green house can become hot due to electromagnetic radiation coming
from the sun and heating plants, soil and other goods inside buildings. Green
house protect plants from excessive heat and cold, protect plants from dust storms
and help prevent pests. Solar cell is one source of electricity energy, which is
sourced from unlimited sunlight and environmentally friendly. Because the source
of this solar cell is the sun, then the output of the solar cell will change-change
according to the weather and the surrounding, environment is needed an energy
storage that can accommodate the electrical energy of the solar cell output.
Battery is one of the equipment that can store electrical energy and can
accommodate the output energy coming from solar cell. This research will discuss
the characteristics of the envelope of solar cell output to the battery energy, which
include the relation to current and generated voltage and this energy storage
system. From the results of the research then got a good position for the
installation of solar cell that affect sunlight to the voltage that is facing west to the
east can be called horizontal position with the average voltage obtained by 19,30
volts compared with 19,10 volts in the vertical position.