A SURVEY OF HOUSEHOLDS ELECTRICITY CONSUMPTION OF END-USE APPLIANCES IN NIGERIA

END-USE APPLIANCES IN NIGERIA

Abstract

A study was conducted to determine the electrical energy consumption of selected end-use appliances in residential houses in Nigeria. The end-use monitoring study was undertaken in the Federal Capital Territory, Abuja to assess the current level of energy efficiency of lighting appliances, refrigerators and air conditioners. A total of 35 households were monitored. The households were selected at random based on their income status. Data logger devices such as serial watt meters, Multivoies (watt meter with six pliers), lamp meters and temperature sensors were used to measure energy consumptions and energy related parameters for a period of 30 day from each household. Data obtained showed that electricity supply was available for 63% of the monitoring period and power outage accounts for 37% of the period. A total of 51% of the houses had air conditioners installed in them with an average power consumption of 1387kWh/annum. A total of 37% of the houses had fridge-freezers cooling systems with an average energy consumption of 698kWh/annum. Deep freezers were found in 46% of the households; the average energy consumption of deep freezers was 756kWh/annum. The average annual consumption of fridges was 420kWh/annum. The study revealed that power supply to the houses was unstable. Air conditioners were the most used appliances in most of the houses monitored and had the highest annual consumption. The average annual electricity consumption in Nigeria households is much higher than those in European countries where a similar study was conducted.