Housing & servicesHousing & services

Access to electricity

Author/s: Katharine Hall
Date: November 2017

Definition

This indicator shows the number and percentage of children who live in households that are connected to a mains electricity supply from their municipality or Eskom.

Data


Data Source Statistics South Africa (2003 - 2016) General Household Survey 2002 - 2015. Pretoria, Cape Town: Statistics South Africa.
Analysis by Katharine Hall & Winnie Sambu, Children’s Institute, University of Cape Town.
Notes
  1. Children are defined as persons aged 0 – 17 years.
  2. Population numbers have been rounded off to the nearest thousand.
  3. Sample surveys are always subject to error, and the proportions simply reflect the mid-point of a possible range. The confidence intervals (CIs) indicate the reliability of the estimate at the 95% level. This means that, if independent samples were repeatedly taken from the same population, we would expect the proportion to lie between upper and lower bounds of the CI 95% of the time. The wider the CI, the more uncertain the proportion. Where CIs overlap for different sub-populations or time periods we cannot be sure that there is a real difference in the proportion, even if the mid-point proportions differ. CIs are represented in the bar graphs by vertical lines at the top of each bar.
The International Committee on Economic, Social and Cultural Rights (CECSR) issued a general comment on the meaning of ‘adequate’ housing. It identified seven key elements which need to be assessed to measure whether housing is ‘adequate’. One of these elements is access to services including access to safe energy sources, such as an electricity connection in the house. Access to a safe energy source such as electricity has an impact not only on the child’s right to housing, but also on their rights to health, nutrition and education.

Where there is no electricity, families use other fuels for lighting, heating and cooking, and these can pose health and safety hazards. For example, candles and paraffin stoves are fire hazards when dwellings are built out of materials that burn easily; wood or dung fires can contribute to respiratory infections; burns from open fires are a common cause of injury and death. Where families do not have access to fridges, they are also less able to keep food fresh.

There are a number of time-use consequences to not having electricity. It is usually women and children who collect wood and other fuels, and more effort is required for cooking and heating with these fuels. Time spent by children to collect fuel can impact on their ability to do their homework and keep up at school. Also, a lack of adequate electric lighting makes it difficult for children to study after dark.

In 2015, many more children had electricity in their homes (89%) than had access to clean drinking water (68%) or basic sanitation (76%). As with water and sanitation, access to electricity varies considerably across types of housing. While 95% of formally-housed children live in households with electricity, this drops to 59% amongst children in informal dwellings. One of the main dangers of informal settlements for children is the risk of fires, which spread rapidly and are often started when households use alternative and more dangerous energy sources (such as paraffin) for cooking and lighting. Access to electricity does not necessarily mean that households discontinue using flammable fuels, but it does provide an alternative that is safer – if households can afford safer appliances and the cost of electricity.

Amongst children who stay in traditional rural homesteads, the rate of access to electricity (72%) is considerably higher than levels of access to piped drinking water (20%).

There has been a gradual improvement in children’s access to electricity across the country – from 70% in 2002 to 89% in 2015. Five provinces stand out as having reached significantly more households with children over the period: the Eastern Cape (from 48% to 82%), KwaZulu-Natal (57% to 84%), and Limpopo (from 71% to 96%).

Although the gap in electricity service provision for rich and poor households has been closing, there are still significant differences in levels of service provision, with 99% of children in richest 20% of households having a mains electricity supply, compared with 85% of children in poorest 20% of households.

The General Household Survey asks: “Does this household have a connection to the main electricity supply?” This indicator is calculated according to the number and share of children in households that answered “yes” (connected) and “no” (not connected). The indicator only shows whether a household is connected to the mains supply. There may be many children in households that do not use electricity because their families are unable to afford it, or because they do not have the money to buy and maintain electrical appliances such as fridges, stoves, and heaters. On the other hand, there are many households which use electricity even though they are not formally connected to the main grid. Illegal connections often consist of long extensions which run along the ground, and these can shock children or start electrical fires.
The numbers are derived from the General Household Survey, a multi-purpose annual survey conducted by the national statistical agency, Statistics South Africa, to collect information on a range of topics from households in the country’s nine provinces. The survey uses a sample of 30,000 households. These are drawn from Census enumeration areas using multi-stage stratified sampling and probability proportional to size principles. The resulting estimates should be representative of all households in South Africa.

The GHS sample consists of households and does not cover other collective institutionalised living-quarters such as boarding schools, orphanages, students’ hostels, old-age homes, hospitals, prisons, military barracks and workers’ hostels. These exclusions should not have a noticeable impact on the findings in respect of children.

Changes in sample frame and stratification
The sample design for the 2015 GHS was based on a master sample that was designed in 2013 as a general purpose sampling frame to be used for all Stats SA household-based surveys. The same master sample is shared by the GHS, the Quarterly Labour Force Survey, the Living Conditions Survey and the Income and Expenditure Survey. The 2013 master sample is based on information collected during the 2011 population census. The previous master sample for the GHS was used for the first time in 2008, and the one before that in 2004. These again differed from the master sample used in the first two years of the GHS: 2002 and 2003. Thus there have been four different sampling frames during the 14-year history of the annual GHS, with the changes occurring in 2004, 2008 and 2013. In addition, there have been changes in the method of stratification over the years. These changes could compromise comparability across iterations of the survey to some extent, although it is common practice to use the GHS for longitudinal monitoring and many of the official trend analyses are drawn from this survey.

Weights
Person and household weights are provided by Stats SA and are applied in Children Count analyses to give estimates at the provincial and national levels. The GHS weights are derived from Stats SA’s mid-year population estimates. The population estimates are based on a model that is revised from time to time when it is possible to calibrate the population model to larger population surveys (such as the Community Survey) or to census data.

In 2013, Stats SA revised the demographic model to produce a new series of mid-year population estimates. The 2013 model drew on the 2011 census (along with vital registration, antenatal and other administrative data) but was a “smoothed” model that did not mimic the unusual shape of the age distribution found in the census. The results of the 2011 census were initially questioned because it seemed to over-count children in the 0 – 4 age group and under-count children in the 4 – 14-year group.

The 2013 model was used to adjust the benchmarking for all previous GHS data sets, which were re-released with the revised population weights by Stats SA, and was still used to calculate weights for the GHS up to and including 2015, even though it is now known that the mid-year population estimates on which the weights are based are incorrect. All the Children Count indicators were re-analysed retrospectively, using the revised weights provided by Stats SA, based on the 2013 model. The estimates are therefore comparable over the period 2002 to 2015. The revised weights particularly affected estimates for the years 2002 – 2007.

It is now thought that the fertility rates recorded in the 2011 population census may have been an accurate reflection of recent trends, with an unexplained upswing in fertility around 2009 after which fertility rates declined gradually. Similar patterns were found in the vital registration data as more births were reported retrospectively to the Department of Home Affairs, and in administrative data from schools, compiled by the Department of Basic Education. In effect, this means that there may be more children in South Africa than appear from the analyses presented in these analyses, where we have applied weights based on a model that it is now known to be inaccurate.

Disaggregation
Statistics South Africa suggests caution when attempting to interpret data generated at low level disaggregation. The population estimates are benchmarked at the national level in terms of age, sex and population group while at provincial level, benchmarking is by population group only. This could mean that estimates derived from any further disaggregation of the provincial data below the population group may not be robust enough.

Reporting error

Error may be present due to the methodology used, i.e. the questionnaire is administered to only one respondent in the household who is expected to provide information about all other members of the household. Not all respondents will have accurate information about all children in the household. In instances where the respondent did not or could not provide an answer, this was recorded as “unspecified” (no response) or “don’t know” (the respondent stated that they didn’t know the answer).

For more information on the methods of the General Household Survey, see the metadata for the respective survey years, available on Nesstar  or DataFirst