Who controls a prosumer?

Who controls a prosumer?

The main role of the prosumer which sits behind the API would be to choose its own mode of operation, within the contraints imposed by multiple different API clients. The equipment 'owner' (e.g. the householder, via some kind of 'smart home' controller) would have primacy and would set core constraints (hopefully based on sensible defaults). This would for example set the required thermostatic set points and some tolerance (e.g. for a thermostat, up to one degree for up to one hour, some number of degree-hours, possibly in time slots). A third party controller, such as the household aggregator would then be able to selectively adjust the operation within those parameters to take advantage of locally generated energy or to influence the amount of energy in local storage. The household aggregator would also have an 'owner' which would set the local objectives but it may also have third-party controllers such as a local, grid-optimising aggregator.