The Planning Study of 145 MW Grid Connected Cirata’s Floating PV to Support the Security of Supply in Jawa Bali Power Systems

Abstract

In this paper, a design planning study which includes energy supply projection, and grid impact are used to develop 145 MW AC Floating Photovoltaics (FPV) in Cirata Hydroelectric power plant (HEPP) that would interconnect in Jawa Bali system is presented. Firstly, the evaluation study is conducted to estimate FPV’s energy production by defining parameters on object values to obtain the projection of solar energy production. Based on the calculation, the FPV has provided more than 300 GWh/year of energy production and reached 84% of its performance ratios. Subsequently, the grid interconnection study is performed to ensure the feasibility of this Variable Renewable Energy (VRE). The study also supports both strengthening grid security, and fulfilling the shares from renewable energy, due to the 23 % of national energy mixed. Ensuring the proper interconnection to the system, stability study was also carried out to observe whether the planning of the 145 MW is secure against the intermittency constrain due to its nature characteristic in the system either in 150 kV or 500 kV Transmission Lines (T/L) network. Consequently, the study analysis performed that FPV is ready to be integrated to utility grids, with minimum impact on its power system operation.