Saturday, 12 July 2014


In India most of the people are live in rural areas where national grid till not reached.Though now a days the Govt put effort to connect electricity to the most rural areas but there is still problems like 4 to 6 hours daily power cut, low voltage etc .So I thought if we use solar panels for the rural area to provide their basic needs of electricity then it will be great help. Installing a solar system at home is costly.One thing come to my mind the installation cost can be cut down  if any one install the small solar panel for their home by themselves.

I write this article for all who wants to make a small solar system for their home who don't have much technical skill.Any one who have basic understanding of electricity can do this.

Overview :

There are two basic types of solar photo voltaic (solar panel) systems, off-grid and grid-tied. An off-grid system uses batteries, while batteries are optional in a grid-tied system.
In this article I will discuss the off grid solar system. An off-grid system uses solar panels to convert sunlight into electricity, and stores that electricity in batteries for later use.The charging of batteries are done by the help of a solar charge controller .The out put of batteries is DC (direct current).So dc load can be directly connected but most of the appliances in our home are run in AC (alternating current) power .An  inverter will solve this problem.Refer the above picture for better understanding.

 The main components of Solar Systems are :


For a small solar system 12 VDC is the best option I think though a higher voltage system is more efficient (low loss ).

Fore step by step instruction click here


  1. Hi Debasish,
    Have you looked at a design for a small battery storage system that can be retrofitted to an existing grid tied PV system?
    Effectively connecting a couple of batteries into the existing solar/inverter/household ac electrics circuit that can be used for a few hours at night as a buffer, but supply automatically goes back to grid when they run low and then recharged by the solar when the sun reappears? Just wondering if you had considered this as you latest Arduino solar charge controller looks very professional.

    1. Can you please explain the details of the project.I am not getting exactly.
      Thanks you like my new charge controller.


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