PV systems with/without grid back-up for housing applications

Three different configurations of PV systems, i.e. PV stand-alone, PV direct and PV connected to a grid, were set up and studied at a house in Bangkok. The results were compared to the grid-connected PV systems at other pilot project houses installed by the Electricity Generating Authority of Thailand. The three systems were found to outperform the conventional grid-connected PV system in many aspects.