Cape Town – The introduction of smart electricity meters will create a revolution in the South African power market, says consultancy Frost & Sullivan.
Smart electricity meters make it possible to charge tariffs according to the time of day the electricity is used – that is to say, electricity used during peak consumption periods will cost more.
This also makes it possible to switch off household equipment or geysers remotely, and establishes two-way communication between consumers and the power company.
Bruton says it is expected to help lower the demand for power during peak periods, and will lighten pressure on Eskom’s reserve capacity.
Bruton points out that the Electricity Regulations Act of 2006 specifies that all end users using 1 000kWh or more a month must participate in the smart metering system by January 2012.
Although the act is currently being reviewed, the final version is expected to contain such a stipulation. Eskom and municipalities are thus legally obliged to start installing smart electricity meters.
Municipalities are concerned that they do not have sufficient funds for these much more expensive meters and the supporting communication infrastructure necessary to operate a smart grid.
Source: Fin24.com
In this article they talk about “This also makes it possible to switch off household equipment or geysers remotely,”
Does anyone know ‘how’ this will be done? I have a few ideas, but am wondering if anyone knows how the authors are proposing it gets done.
Hi Michael,
I am using http://www.clipsal.com as a home automation system. Using a so called CNI (computer network interface) from Clipsal, that allows to connect other networks (or networked devices such as iPhone or other 3rd party devices in the solar/battery/inverter category) to interface with the logic engine.
Example 1:
-power goes off
-inverter logic talks to network/wireless LAN
-CNI picks up the information of a status change e.g. power=off
-CNI talks to Clipsal bus system which subsequently switches off geyser circuit breaker via relay
Example 2:
-power goes off
-you receive an SMS from inverter
-use iPhone via VPN to connect to your home network
-Use application from Touchsoft.com.au to connect to Clipsal
-Manually power off relay that controls Geyser or other circuits.
Cheers
Martin