Simulation Study on Energy Mix for Power Generation in Temburong Eco Town
The eco town development plan in Temburong district, Brunei Darussalam, is about applying energy efficient technologies to achieve lower energy demand, especially electricity, to be used by buildings, and renewable energy such as solar photovoltaic (PV). Using a computer simulation model, this study seeks to determine appropriate capacities for both solar PV and electricity storage based on solar radiation data in Brunei and estimated electricity demand of commercial buildings for the eco town in Temburong district. There is already a diesel power plant in Temburong that installs 4 units x 3 megawatts (MW) power generation system, which provides electricity to subscribers in the area. In addition, about 6MW solar PV system will be installed soon. After installation of the system, electricity generation by the diesel station will be reduced. However, once new buildings are constructed according to the Temburong district development plan, more solar PV will be needed. In 2015 and 2016, ERIA collected climate data – solar radiation and rainfall data – in Brunei Darussalam to check intermittency caused by PV system installation. ERIA applied a dynamic simulation approach to check the intermittency under the combination of diesel power generation, solar PV system, and electricity storage. After the simulation, ERIA extracted the best capacity mix of diesel power, solar PV, and storage at minimum cost.