Ampere-hour (Ah) measures your battery’s charge. It’s the charge moved by one ampere in one hour. Kilowatt-hour (kWh), on the other hand, shows energy used or made at one kilowatt for an hour.
[pdf] How long it takes to charge a battery with a wind turbine depends on the size of wind turbine connected to the battery, and the size of the battery—or batteries if more than one is connected, and also of course.
[pdf] For a 24 volt system the panel at max power rating needs to be 32 to 36 volts. Roughly 16 to 18 volts for every 12 volts of battery. However that rule only applies if you are using a standard PWM or shunt regulator. Using that type of regulator you will loose 30% minimum of the power from the panels.
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