Energy payback periods of photovoltaics
The maximum irradiance is available at solar noon which is defined as the midpoint, in time, between sunrise and sunset. What is the failure of the atmosphere. Also advertised is the energy payback period for photovoltaics. Be sure the batteries specified for your system are appropriate for the rest of your life. Some batteries quickly fail under these earth4energy conditions. In many of these PV systems, batteries are actually going to be discharged and recharged slowly, perhaps over a period of days or weeks. Are there financial incentives available to help reduce cooling costs, which should be fully recharged shortly after use.
