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Solar_calendar Solar_power Solar_(room) Solar_inverter Solar_energy Active_solar Passive_solar Photovoltaics Photovoltaic_system Concentrated_solar_power Timeline_of_solar_cells Rechargeable_batteries Pulse width modulation (PWM), or pulse-duration modulation (PDM) - a method of reducing average power delivered by electrical signal, by chopping it up into discrete parts. average value of voltage (and current) fed to load controlled by turning switch between supply and load on and off at fast rate Maximum power point tracking (MPPT) - a technique used commonly with wind turbines and photovoltaic (PV) solar systems to maximize power extraction under all conditions. |