Energrate (Energy Integration) maximises the payback on renewable generation through direct usage, exporting at peaks and virtual net metering.

How this will impact Adelaide's carbon emissions

By increasing the economic value of self-generation, people and businesses would be more encouraged to move toward renewable energy.
As an example, a small business or household could achieve a 4 year payback on PV generation and in so doing enable the mass roll out of PV. ‘Energrate’ would work with battery storage and PV or just PV in such a way as to optimise the financial return on renewable generation. Large industry use SCADA to manage energy supply and demand and Energrate could be seen as being part of a ‘mini SCADA’.

Energrate intends working with existing energy management systems, time of export systems (eg Reposit Power) and the specific energy consumption of the house/business that allows optimisation of energy usage by switching loads such as electric vehicle charging, batteries, airconditioners, hot water etc.

Most importantly, Energrate could facilitate a move to Virtual Net Metering (VNM), whereby it could talk to the sender and receiver of energy, and pay the distributor a fee for electricity 'sent' down the line.

If the SME were to be paid say 25c/kWh as a VNM feed in tariff, the distributor and other parties (retailer) could receive 5c/kWh for their services and in turn on-sell this electricity to an SME that is importing power 'down the road', at say 30c /kWh.
In other words, the grid is used just like a battery. Deployment of VNM would rapidly make PV viable in nearly all areas, and Energrate would be able to track this energy deployment. By demonstrating how fair and economic a VNM system could be, would encourage legislation to be enacted.
Although this is initially to be done at the small scale as a 'mini SCADA', it could eventually be used at sites above 100kW and larger.

If all realistically available space was used for PV generation, and the power generated was used in the CBD, the carbon emissions would be greatly reduced. If SA emissions intensity is 0.6 kg/kWh CO2e, then deployment of solar panels on parking, roof tops, shaded areas could amount to 100MW which equates to an emission reduction of around 160 kt of CO2 p.a.

Energrate would be supplied as a module that integrates with existing systems, but over time could be incorporated into other inverters or control systems.

Voting has now closed for the Wildcard prize. Stay tuned to find out which project will be the 11th finalist.


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