I have come to realise that the proposition is not so much about solar home systems, but about battery connected cooking. Even in the original note I thought that the subsystem of battery/controller/cooking hob might have application in slums – where poor connections may not be happy having 1kW drawn through them, but a trickle charge of a battery during a day could give the household something to cook on in the night. I now realise that there may actually be a market even in regular (non poor) households in some countries.

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