The DECC rules are that no higher capacity band can pay more than a lower one, although they can be on the same rate, so it is theoritically feasible that you could have a flat rate from 0 - 250kW as they kill off the investment. It's good from an installer point of view as it removes the artificial 4. 10 and 50kWp system sizing, and customers can choose as size based on budget / need rather than greed Just the DNO's to keep happy now as big houses start installing 5 and 6 kWp systems..