A Traffic Light System to aid DSR in the Home

There are two situations when it is desirable from a supply perspective for consumers to reduce demand:

• when the grid is approaching total available capacity
• when local voltage is at a low level, i.e. approaching the minimum legal limit of 216V

There are also two situations when it is desirable for consumers to increase demand:

• when supply is in danger of becoming unstable locally - for example when there is high PV generation and low demand.
• when national demand falls below the level required to maintain nuclear generation and/or stability, which is also likely to be at times of high renewable generation.

All of this information and a recommendation for action can be automatically generated from publicly available data, such as national real-time demand, frequency, and local voltage.

This can be displayed in a simple matrix:

The consumer can then decide what action to take based on the recommendation and informed by the supply situation.

Can you help me turn this into a device or an app?