Interesting trial running by a company called Equiwatt that gave smart plugs to some homeowners in Oxfordshire.  When network load is reaching point to require additional generation capacity, it will shut off the device you have nominated to shed load (like a freezer say) for max 1 hour.
You then collect points and (slowly) build up to rewards.
They also offer links into smart EV charging - but I don't have an EV vehicle

Interesting trial running by a company called Equiwatt that gave smart plugs to some homeowners in Oxfordshire.  When network load is reaching point to require additional generation capacity, it will shut off the device you have nominated to shed load (like a freezer say) for max 1 hour.
You then collect points and (slowly) build up to rewards.
They also offer links into smart EV charging - but I don't have an EV vehicle