Inadequate supply of power by the service provider has been an unresolved national issue which affects occupants of buildings in performing tasks indoor. This study was carried out to assess generator audit in selected residential and commercial buildings in Ibadan Metropolis, Nigeria. The study area was divided into core, transition and suburban residential zones. Multistage and quota sampling techniques were used to select respondents sampled in residential and commercial buildings respectively. Descriptive and inferential statistical techniques were used to analyse data collected. The findings revealed that the average supply of power to residential and commercial buildings in the core, transition and suburban zones were 4.37, 5.31 and 7.6 hrs; 4.00, 4.45 and 5.86hrs respectively. The study showed that regardless of the zone, occupants of residential and commercial buildings sampled depended on varying types of brand of generating sets for either comfort need or occupational purpose. Also, 47.79%, of respondents in the residential buildings in the suburban zone used generating sets that were of higher output ratings than those used in either core or transition zone. Across the zones, 71.43% of respondents in the residential buildings could not use their generators to power all their electrical devices. However, in the commercial buildings across the zones, 93.75% of respondents were able to use their generators to power all their electrical appliances indoor. The study recommended that the myriad of poor power supply that forced building occupants to procure various types of generating sets and also run generator economy should be addressed by harnessing environmentally friendly and alternative sources of energy that will foster power security.

Epileptic power supply by the service provider has been a major bottleneck in the bid of residential building occupants to use their electrical appliances indoor for comfort drive. Thus, this study is aimed at investigating and analysing usage of generating sets by the building occupants in Ibadan Metropolis, Nigeria. Data were collected by administering questionnaires on the respondents. The 59 political wards in the 5 local government areas of Ibadan Metropolis were stratified into core, transition and suburban residential zones. Twenty five (25) per cent of the wards indicating 15 wards were selected across the three zones. By using systematic sampling technique, 2% of the residential buildings totaling 736 buildings were sampled across the zones. The study revealed that the average duration of power supply that was incidental to dependence on generating sets in residential buildings in the core, transition and suburban zone was 4.37, 5.31 and 7.63hrs respectively. Also, 45.82% of the respondents had used their generating sets for 3 years; 93.78% largely depended on petrol engine generators; and 71.43% of the respondents could not use their generating sets to power all their electrical appliances at a moment when compared with the normal voltage of power from the service provider (IBEDC). The study concluded that the type of generating used depended on the socio-economic characteristics of the respondents and recommended that government should ensure sincere deregulation of power sector and seek for more environmentally energy sources.