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Standard Test Conditions (STC): A set of reference PV device measurement
conditions consisting of irradiance of 1 kW/m2, AM 1.5, and 25ºC cell temperature.
Standalone System: A power system not connected to the utility grid (mains.)
Sometimes referred to as an autonomous system.
State of Charge: The percentage of energy in a battery referenced to its nominal full
capacity.
Sulfation: The formation of lead sulfate crystals on the plates of a lead-acid battery.
Normally used to refer to large sulfate crystals, rather than small crystals formed in
normal battery operation. The sulfate on the plates of a battery will harden if left in a
partially charged state, causing reduced battery capacity and shortening the life of the
battery. If caught in time, “equalization” will remove the buildup of sulfation.
Voltage: The electrical potential between two points. Voltage is analogous to water
pressure in that it pushes the electrons or current through a conductor. The unit for
voltage is volt and designated by the letter V.
RV Kit Installation
RV Kit Installation
RV Kit Installation
RV Kit Installation
RV Kit Installation