Your electricity savings are the difference between how much electricity your smart solar geyser uses (for electric backup) and how much electricity a new SABS-compliant electric geyser would have used. These savings are converted into a monetary value using your municipality’s electricity tariff.

Electricity used by your smart solar geyser is measured in real time by the smart box. Electricity which would have been used by an electric geyser is calculated using a methodology published by the Institute of Electrical and Electronic Engineers (IEEE), the world’s largest technical professional organisation for the advancement of technology (available at