Smart energy operation

ZigBee Smart Energy Profile Specification defines the following Device types.

Energy Service Portal

 Energy Service Portals connect the energy supply company communication network to the metering and energy management devices within the home. They route messages to and from the relevant end points. An Energy Device Portal may be installed within a meter, thermostat, or In Home Display, or it may be a standalone device. An Energy Service Portal will contain another non-ZigBee communication device such as a power-line carrier, RF or GPRS module or broadband Internet connection.

Metering End Device

The Metering End Device is a meter (electricity, gas, water, heat and so on) that is fitted with a ZigBee device. Depending on what is being metered, the device may be capable of immediate (requested) reads or it will autonomously send readings periodically. A Metering End Device may also be capable of communicating certain status indicators such as battery low, tamper detected and so on.

In-Premise Display Device

The In-Premise Display Device will relay energy consumption data to the user by way of a graphical or text display. The display may or may not be an interactive device. At a minimum at least one of the following should be displayed: current energy usage, a history of energy usage over selectable periods, pricing information, or text messages. As an interactive device, it can be used for returning simple messages for interpretation by the recipient. For example "Button 'A' was pressed". The display may also show critical pricing information to advise the customer when peaks are due to occur so that they can take appropriate action.

Programmable Communicating Thermostat (PCT) Device

The PCT device shall provide the capability to control the heating and cooling systems of premises.

Load Control Device

The Load Control Device is capable of receiving Demand Response and Load Control events to manage consumption on a range of devices. Example devices include water heaters, exterior lights, and pool pumps.

Range Extender Device

The Range Extender is a simple device that acts as a router for other devices. The Range Extender Device shall not be a ZigBee end device. A product that implements the Range Extender Device shall not implement any other devices defined in this profile. This device shall only be used if the product is not intended to have any other application, or if a private application is implemented that has not been addressed by this profile.

Smart Appliance Device

Smart Appliance Devices are household appliances on the ZigBee network that can participate in energy management activities. Smart Energy Devices can respond when Utilities initiate a demand response or pricing event, or the appliance actively informs customers via in-home displays of when or how energy is being used. In the latter case, scenarios might include:

• Dishwasher switching to cold water during periods of higher energy costs.
• Washing machine/Dryer/Oven/Hot Water Heater reporting cycle status.
• Over temperature conditions in Freezers and Refrigerators.

Prepayment Terminal Device

The Prepayment Terminal device will allow utility customers or other users (such as sub-metered tenants) to pay for consumption in discrete increments rather than establishing a traditional billing agreement. The Prepayment Terminal device will accept payment by credit card or code entry, display remaining balances, and alert the user of a balance approaching zero, and may perform some or all of the other functions described by In-Premise Display description above.

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