1. A Photovoltaic solar heating system comprising an inverter capable of being used with a PV array, a load element and no other major components, specifically not requiring a battery or a connection to an electricity supply network and incorporating several innovations

摘要

#$%^&*AU2016100886A420160728.pdf#####Abstract A Photovoltaic solar heating system comprising an inverter for driving one or more heating elements without the use of a battery and without connection to an electricity supply network using direct switching with no complex conversion stage, simplified MPPT based on optimised load resistor voltage, cycle by cycle selected RMS output voltage, stepped wave output for flexibility of input voltage, optional change over switching for boosting from an auxiliary electricity source with timer functions for optimising use of the auxiliary source; such system primarily intended to heat domestic hot water but able to be used for any heating task that can be done using electricity.