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Domestic Electrical Load Survey Secure Data 1994-2014

South Africa, 1995 - 2014
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Reference ID
zaf-eskom-uct-us-delss-1994-2014-v1
Producer(s)
Eskom, Stellenbosch University, University of Cape Town
Metadata
DDI/XML JSON
Created on
May 28, 2019
Last modified
Jun 20, 2019
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  • Identification
  • Version
  • Scope
  • Coverage
  • Producers and sponsors
  • Sampling
  • Data Collection
  • Data processing
  • Data appraisal
  • Data Access
  • Contacts
  • Metadata production

    • Identification

    Survey ID number

    zaf-eskom-uct-us-delss-1994-2014-v1
    Title

    Domestic Electrical Load Survey Secure Data 1994-2014
    Country
    Name Country code
    South Africa ZAF
    Study type

    Household Survey [hh]
    Abstract

    This dataset contains sensitive data that has not been disclosed in the online version of the Domestic Electrical Load Survey (DELS) 1994-2014 dataset. In contrast to the DELS dataset, the DELS Secure Data contains partially anonymised survey responses with only the names of respondents and home owners removed. The DELSS contains street and postal addresses, as well as GPS level location data for households from 2000 onwards. The GPS data is obtained through an auxiliary dataset, the Site Reference database. Like the DELS, the DELSS dataset has been retrieved and anonymised from the original SQL database with the python package delretrieve.
    Kind of Data

    Sample survey data
    Unit of Analysis

    Households and individuals

    Version

    Version Description

    v1: Edited, partially anonymised data for use in DataFirst's secure research data centre https://www.datafirst.uct.ac.za/services/secure-data-services
    Version Date

    2019-05-13
    Version Notes

    Version 1

    Scope

    Notes

    The scope of the South African Domestic Electrical Load Survey Secure Data includes:

    HOUSEHOLD: Household characteristics, occupant demographics of gender and age, education, employment, income, income sources, number of household occupants with income, dwelling ownership, gender of head of household,
    DWELLING: Dwelling characteristics, wall material, roof material, floor area, ceiling, insulation, rooms, water source, out-buildings, circuit breaker, business use
    APPLIANCES: Appliance characteristics, stove, hotplate, kettle, heater, iron, geyser, washing machine, TV, HiFi radio, lights, fridge, freezer, microwave, tumble dryer, broken appliances, appliance usage
    BEHAVIOUR: Cooking, heating, alternative fuels, paraffin, gas, wood, charcoal, coal,
    ELECTRICITY: Time electrified, power quality, lights dimming, power outages, power trips
    Keywords
    electrical household load data domestic electrification power quality electricity consumption energy rural residential appliance

    Coverage

    Geographic Coverage

    The study had national coverage.
    Geographic Unit

    The lowest unit of geographic aggregation in the secure (restricted-access) version of the data is street address, and household GPS coordinates from 2000 onwards.
    Universe

    The survey covers electrified households that received electricity either directly from Eskom or from their local municipality. Particular attention was devoted to rural and low income households, as well as surveying households electrified over a range of years, thus having had access to electricity from recent times to several decades.

    Producers and sponsors

    Primary investigators
    Name Affiliation
    Eskom Government of South Africa
    Stellenbosch University
    University of Cape Town
    Producers
    Name Affiliation Role
    Council for Scientific and Industrial Research Technical assistance
    Marcus Dekenah Consulting Data collection, technical assistance
    Schalk Heunis Enerweb [Technical assistance in] sampling methodology/selection, data processing, data quality control, statistical analysis, data analysis (1995 - 2014)
    Wiebke Toussaint University of Cape Town [Technical assistance in] data science, data stewardship, data archiving, data publishing (2017 - 2019)
    Funding Agency/Sponsor
    Name Role
    Department of Minerals and Energy Affairs (now: Department of Energy) Funder from 1994 - 1997
    Eskom Research Funder from 1998 - 2014
    South African National Energy Development Initiative Funder in 2019 for data archiving
    Other Identifications/Acknowledgments
    Name Affiliation Role
    City of Cape Town Government of South Africa provided data loggers and human resources for data collection (1997 - 2006)
    City of Johannesburg Government of South Africa provided data loggers and human resources for data collection (1996 - 2000)
    City of Tshwane Government of South Africa provided data loggers and human resources for data collection (2001 - 2003, 2005 - 2009)
    eThekwini Municipality Government of South Africa provided data loggers and human resources for data collection (1995, 1997 - 2002, 2005, 2006)
    Msunduzi Municipality Government of South Africa provided data loggers and human resources for data collection (1996, 1997)
    Mantsopa Municipality Government of South Africa provided data loggers and human resources for data collection (1996, 1997)
    Nelson Mandela Bay Municipality Government of South Africa provided data loggers and human resources for data collection (1995, 1997 - 2006)
    Stellenbosch Municipality Government of South Africa provided data loggers and human resources for data collection (1994)

    Sampling

    Sampling Procedure

    See sampling procedure for DELS 1994-2014

    Data Collection

    Dates of Data Collection
    Start End Cycle
    2014 2014 Final data collection
    1995-05-01 1995-08-31 G1994
    1995-05-01 1995-08-31 G1995
    1996-05-01 1996-08-31 G1996
    1997-05-01 1997-08-31 G1997
    1998-05-01 1998-08-31 G1998
    1999-05-01 1999-08-31 G1999
    2000-05-01 2000-08-31 G2000
    2001-05-01 2001-08-31 G2001
    2002-05-01 2002-08-31 G2002
    2003-05-01 2003-08-31 G2003
    2004-05-01 2004-08-31 G2004
    2005-05-01 2005-08-31 G2005
    2006-05-01 2006-08-31 G2006
    2008-05-01 2008-08-31 G2008
    2009-05-01 2009-08-31 G2009
    2010-05-01 2010-08-31 G2010
    2012-05-01 2012-08-31 G2012
    2013-05-01 2013-08-31 G2013
    2014-05-01 2014-08-31 G2014
    Data Collection Notes

    See notes on data collection for DELS 1994-2014.

    Data processing

    Data Editing

    This dataset has been produced by extracting only the survey responses from the original NRS Load Research SQL database using the saveAnswers function from the delretrieve python package (https://github.com/wiebket/delretrieve: release v1.0). Full instructions on how to use delretrieve to extract data are in the README file contained in the package.

    PARTIAL DE-IDENTIFICATION
    Partial de-identification was done in the process of extracting the data from the SQL database with the delretrieve package. Only the names of respondents and home owners have been removed from the survey responses by replacing responses with an 'a' in the dataset. Documents with full details of the variables that have been anonymised are included as external resources.

    MISSING VALUES
    Other than partial de-identification no post-processing was done and all database records, including missing values, are stored exactly as retrieved.

    Data appraisal

    Data Appraisal

    See notes on data quality for DELS 1994-2014

    Data Access

    Access authority
    Name Affiliation URL Email
    DataFirst University of Cape Town support.data1st.org support@data1st.org
    Access conditions

    Secure Research Data Centre access https://www.datafirst.uct.ac.za/services/secure-data-services
    Citation requirements

    Eskom, Stellenbosch University, University of Cape Town. Domestic Electrical Load Survey-Secure Data 1994-2014 [dataset]. version 1. Johannesburg: Eskom, Cape Town: UCT, Stellenbosch: US [producers], 2014. Cape Town: DataFirst [distributor], 2019.10.25828/7jtv-mc31

    Contacts

    Contacts
    Name Affiliation Email URL
    DataFirst University of Cape Town support@data1st.org support.data1st.org

    Metadata production

    Producers
    Name Affiliation Role
    Energy Research Centre University of Cape Town Metadata producer
    Date of Metadata Production

    2019-05-28

    Metadata version

    DDI Document version

    V2
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