Ofgem has confirmed its decision to impose a £9.78 million penalty on SSE Generation, despite an energy consultant raising concerns over the regulator’s approach. The penalty is being imposed after Ofgem ruled that SSE secured excessive payments from National Grid Electricity System Operator (ESO) during periods of transmission constraint in relation to power provided by the Foyers pumped storage power station. Concerns have been raised by Lisa Waters of Waters Wye Associates with the approach Ofgem had taken to assessing the excessiveness of SSE’s bids.