Electric water heaters, solar PV, etc.

Main publications:

  • M.J. Ritchie, J.J.A. Engelbrecht, M.J. Ritchie A probabilistic hot water usage model and simulator for use in residential energy management, Energy and Buildings2021, Link
  • M.J. Booysen, J.A.A. Engelbrecht, M.J. Ritchie, M. Apperley, A.H. Cloete,  “How much energy can optimal control of domestic water heating save?”, Energy for Sustainable Development, vol 51 pp. 73-85 2019, Link
  • M. Roux, M. Apperley, M.J. Booysen, Comfort, peak load and energy: Centralised control of water heaters for demand-driven prioritisation”, Energy for Sustainable Development vol 44, pp. 78–86, Jun 2018, Link
  • S. Gerber, A. Rix, M.J. Booysen, “Combining grid-tied PV and intelligent water heater control to reduce the energy costs at schools in South Africa”, Energy for Sustainable Development, vol 50  pp. 117-125, June 2019Link
  • W. Stone, T.M. Louw, G. Gakingo, M.J. Nieuwoudt, M.J. Booysen, “A potential source of undiagnosed Legionellosis: Legionella growth in domestic water heating systems in South Africa”, Energy for Sustainable Development, Volume 48, pp. 130-138, Feb 2019, Link


  •  “Smart water heating could help in South Africa’s energy crisis”, The Conversation, Link
  • Interview with John Maytham on Cape Talk: Link
  • Interview with Thembekile Mrototo on enca: https://youtu.be/PyIamYTf-ZE