Abstract
The Philippine residential sector consumes a large percentage of the country’s generated electricity, and the price of electricity there is one of the highest in Asia. With a government program in renewable energy utilization and energy efficiency, the development of energy efficient houses is important. This paper presents a numerical investigation on how to minimize the house’s energy consumption, and the results show that a house’s electricity consumption can be supported by the installation of solar photovoltaic panels on its rooftop. A solar thermal collector with an auxiliary biomass water heater could support the hot water requirement of the house. The desiccant dehumidification system combined with evaporative and ground cooling systems can keep the house’s indoor temperature below 27 °C with a humidity ratio of less than 11 g/kg year-round. Energy conservation measures such as additional insulation of a concrete house, unplugging of un-used electrical appliances and application of light-emitting diode lighting are important to reduce electric energy consumption. The application of new building technologies is having a positive impact on a building’s energy consumption and indoor environment conditions. The results of this study are important for the Philippine program in alternative energy utilization and energy efficiency.
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