smart hot water load control

Ensure compliance with the revised Electricity Network Connection Standard (ESA002, Section 5.8.1).

As of 1 April 2023 (with a grace period till 1 October 2023), for new and replacement installations for Low Voltage (LV) customers (i.e. less than 100 Amps): 

For instances where customers have suitable controllable load (i.e. electric-water heater with storage capacity greater than 50L heated with an element greater than 1.2kW) the controllable circuit must be wired into a separate controllable element of the smart meter, which may be internal to the smart meter or an external relay (exception). 
 If applicable, other controlled load such as irrigation pumps, pool pumps, electric vehicle charging, storage space heaters and underfloor heating must not be wired into the same controllable element as the electric-water heater circuit.

Metering enclosure size shall be sufficient to accommodate the revenue meter(s) with or without the control devices. As a guide the following minimum space within the enclosure is applicable on a per device basis. For minimum internal dimensions, refer to the diagrams below:

useful links

Electricity connection standard 

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