Operating cost of photovoltaic power plants. The cost of photovoltaic power [17] is mainly the cost of the photovoltaic abandonment and can be written as: (7) C P 2 t = C p 2 P 2 e t 1 − n 2 t Δ T 2 (t) where, C P 2 (t) is the cost of photovoltaic abandonment at time t; C p 2 is the penalty factor for the abandonment of photovoltaic …