Dataset on the patterns of electricity consumption in public universities in southwestern Nigeria

In this data article, a thorough dataset on patterns of electricity use in Nigerian public universities was presented. Three relatively old public universities with staff and students’ halls of residences were purposively selected. The selected universities were Obafemi Awolowo University, Ile-Ife (OAU), Federal University of Technology, Akure (FUTA), and University of Ibadan (UI). Data were obtained through the administration of a structured questionnaire on electricity end users in the universities sampled. For the data collection, the electricity end users in public universities were stratified into users in university staff offices, staff residences, student residences, and commercial units. Electricity users were selected using systematic random sampling and accidental sampling techniques. In OAU, FUTA and UI, 217, 137 and 164 students, respectively were sampled; 30, 3, and 61 households in OAU, FUTA, and UI, respectively were sampled while 28, 6, and 18 commercial units in OAU, FUTA and UI, respectively were also sampled. The sample size determined for staff in OAU, FUTA and UI were 139, 81 and 182, respectively. The data obtained were analyzed using radar charts. The information provided in this data article will encourage investigation into electricity management strategies, critical success factors for electricity management, planning, and policy formulation towards the realization of sustainable campuses.


Specification table
Subject area Building More specific subject area Electricity consumption in buildings Type of data Figures How data was acquired Administration of questionnaire intended to collect the respondents' electricity consumption data, which included device and operational time (kilowatt per hour).

Data format Raw and analyzed Experimental factors
The electricity consumption formula shown below was used to determine the electricity consumption level: Where: Q ¼ Energy consumption of equipment;

Value of the data
The data will foster more empirical investigation for a better understanding of areas of improvement in electricity use [1].
The data provided in this article is useful for the development of electricity use models, energy audit, and energy management practices [2,3].
The data provided will assist the government and the management of public universities in resultoriented planning, budgeting, and decision-making [4].
The provision of this data will propel the achievement of the sustainable campus environment [5][6][7][8].

Experimental design, materials, and methods
The quantitative technique was adopted. The instrument for data collection was a structured questionnaire. A multi-stage sampling technique was used for the data collection [17]. In the first stage, purposive sampling was used to select relatively old public universities with staff and students' halls of residences. In this regard, Obafemi Awolowo University, Ile-Ife (OAU); Federal University of Technology, Akure (FUTA); and University of Ibadan (UI) were selected. The second stage was the stratification of electricity users into staff offices, staff residences, student residences, and commercial units. Student halls were categorized into two: undergraduate male, undergraduate female, and postgraduate male and postgraduate female hostels. Student hostels were purposively selected to capture variation in gender and levels of study. In OAU, FUTA and UI, Moremi, Jadesola Akande and Awolowo halls, respectively were selected as representatives of female undergraduate hostels in the universities, while Awolowo, Peter Adeniyi, and Independence halls were selected for male undergraduate students in OAU, FUTA, and UI respectively. Murtala Muhammed Postgraduate hall in OAU, FUTA Postgraduate hall in FUTA and Abdusalam Abubakar Postgraduate hall in UI for both Male and Female students were also sampled. The populations of students occupying these hostels earlier determined were 1228, 1200 and 1618 for Moremi, Jadesola Akande and Awolowo halls, respectively; 2,032, 1142 and 956 for Awolowo, Peter Adeniyi and Independence halls, respectively, while there were 1072 (408 female, 664 male), 400 (120 female, 280 male) and 700 (420 female, 280 male) in Murtala Muhammed, FUTA and Abdusalam Abubakar Postgraduate halls, respectively. One out of every twenty (5%) students were selected in each hall. In all, 217, 137 and 164 students were sampled in OAU, FUTA, and UI, respectively. The preliminary investigation also showed that in OAU, FUTA, and UI, there were 600, 50 and 1212 households, respectively in staff residential quarters while there were 552, 115 and 350 shops, respectively to constitute the sample frame for both staff housing units and business units. One out of every twenty (5%) households and shops were selected. Using this method, 30, 3 and 61 households in OAU, FUTA, and UI, respectively were sampled while 28, 6 and 18 business units in OAU, FUTA, and UI, respectively were also sampled. For staff offices, accidental sampling was used across academic, administrative and other cadres of staff in the three universities. The sample size determined for staff in OAU, FUTA and UI were 139, 81 and 182, respectively.
The amount of electricity consumption was calculated from Eq. (1). For the sake of clarity and potential transmission, the statistical analyses of the electricity data have been presented using radar charts. Suitable deductions and discussions based on these plots will give a valuable understanding that is required for valid conclusions.

Transparency document. Supplementary material
Transparency document associated with this article can be found in the online version at http://dx.doi.org/10.1016/j.dib.2018.09.056.