If you don't know where to start, then take some free introduction courses. Decide if solar excites you like the sunlight excites the electrons in a solar cell. You'll have to take the "Introduction to Solar PV Design, Installation and Code," course to know what I mean.
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this section is a ' real eye opener ' explaining battery capacity and functionality in the relation to the types of batteries being used and in relation to variation of the use of different types of batteries in a wide range of scenarios.