battery
An electric battery is a device consisting of one or more electrochemical cells with external connections provided to power electrical devices.[1] A discharging battery has a positive terminal, or cathode, and a negative terminal, or anode.[2] The terminal marked negative is the source of electrons that when connected to an external circuit will flow and […]
baseline performance value
Initial values of Isc, Voc, Pmp, Imp measured by the accredited laboratory and corrected to Standard Test Conditions, used to validate the manufacturer’s performance measurements provided with the qualification modules per IEEE 1262.
barrier energy
The energy given up by an electron in penetrating the cell barrier, a measure of the electrostatic potential of the barrier.
balance of system (BOS)
The balance of system (BOS) encompasses all components of a photovoltaic system other than the photovoltaic panels.[1] This includes wiring, switches, a mounting system, one or many solar inverters, a battery bank andbattery charger. The Balance of System components of a photovoltaic system, can be understood as balancing the DC power-generating subsystem of the solar […]
azimuth
An azimuth is an angular measurement in a spherical coordinate system. The vector from an observer (origin) to a point of interest isprojected perpendicularly onto a reference plane; the angle between the projected vector and a reference vector on the reference plane is called the azimuth. An example is the position of a star in the […]
avoided cost
An avoided cost (also known as net-metering) is the minimum amount an electric utility is required to pay an independent power producer, under the PURPA regulations of 1978, equal to the costs the utility calculates it avoids in not having to produce that power (usually substantially less than the retail price charged by the utility […]
autonomous system
An autonomous system is a stand-alone PV system that has no back-up generating source. May or may not include storage batteries. Electricity is typically generated by one or more of the following methods: Photovoltaic system using solar panels Wind turbine Geothermal source Micro combined heat and power Micro hydro Diesel or biofuel generator Storage is […]
array
A solar array is any number of photovoltaic modules connected together to provide a single electrical output at a specified voltage. Arrays are often designed to produce significant amounts of electricity. Photovoltaic system From Wikipedia, the free encyclopedia (Redirected from Solar array) Photovoltaic power systems and components: Top: solar string inverter and other BOS components ·Solar array […]
angle of incidence
The angle of incidence is the angle which references the sun’s radiation striking a surface. It is the angle between a ray incident on a surface and the line perpendicular to the surface at the point of incidence, called the normal. Determining the angle of reflection with respect to a planar surface is trivial, but the computation […]