| Title |
A Study on the Estimation of Optimal ESS Capacity Considering REC Weighting Scheme |
| Authors |
이성우(Sungwoo Lee) ; 김형태(Hyoungtae Kim) ; 신한솔(Hansol Shin) ; 김태현(Tae Hyun Kim) ; 김욱(Wook Kim) |
| DOI |
http://doi.org/10.5370/KIEE.2018.67.8.1009 |
| Keywords |
Energy storage system ; Renewable energy certificate ; Renewable energy intermittency ; Renewable portfolio standards ; ESS incentive ; Jeju island |
| Abstract |
As the generation of renewable energy increases rapidly, the stability of the grid due to its intermittency becomes a problem. The most appropriate way to solve this problem is to combine and operate the renewable generators with the ESS(Energy Storage System). However, since the revenues of operating the ESS are less than the investment cost, many countries are implementing various incentive policies for encouraging investment of the ESS. In this paper we estimated optimal capacity of the ESS to maximize profits of renewable energy generation businesses under the incentive policy of Korea and analyzed the impact of the incentive policy on the future electric power system of Jeju island. The simulation results show that the incentive policy has significantly improved the profitability of the renewable energy businesses generation business. But the volatility of the net demand has increased as the energy stored in the ESS is discharged intensively at the time of the incentive application. |