Power Plant, Renewable Energy, Energy Management, Power Distribution System, Electrical Power Energy System
6
Scopus Publications
Scopus Publications
Optimal planning of solar energy using a sensitivity factor for rural electricity needs in an off-grid system (case study: Sebesi Island, South Lampung, Indonesia) Sabhan Kanata, Syamsyarief Baqaruzi, Ali Muhtar, Gde KM Atmajaya, Amrina Mustaqim Smart Science, 2024 Small islands in Indonesia usually have a million beauty and extraordinary natural wealth. However, the development of remote islands is prolonged due to the limited electricity supply on these islands. This limitation occurs because the island is far from the primary power grid or uses a diesel generator (DG). Using the DG will increase the cost of shipping fuel oil through limited sea transportation. Therefore, this study aims to conduct a feasibility study of a solar power plant to meet the electricity needs of Sebesi Island, South Lampung, Indonesia. The availability of solar Energy and limited battery life are the main challenges in providing solar Energy today. Therefore, this study also considers the uncertainty of resources by using the sensitivity factor. This research uses HOMER software. This study assumes operating reserve peak, operating reserve, solar reserve, and lifetime battery life to account for resource uncertainty. This method is very effective in overcoming operational limitations and problems. The research results show that the optimal peak operating reserve, operating reserve, solar reserve, and lifetime battery are 10%, 10%, 10–30%, and 5 years, respectively. To meet the daily electrical energy needs of 505.1 kWh, the minimum net current cost (NPC) and energy cost (COE) are $1.26 million and 0.346 $/kWh, respectively. Therefore, this research succeeded in finding a scenario that takes into account sensitivity factors that are more economical. Compared with a diesel generator (DG) with a capacity of 100 kW, the NPC and COE values are $1.29 million and 0.397 $/kWh. Meanwhile, in terms of technology, solar power systems produce much more energy than DG. This system has an energy of 583,316 kWh/year, while the DG system can produce an energy of 268,469 kWh/year. As a result, this system can also reduce CO2 emissions by 241,812 kg/year.
Economic-Environmental Study on Hybrid System of Photovoltaic, Wind, Diesel, Biomass for Off-Grid Rural Electrification in Sebesi Island, Indonesia Syamsyarief Baqaruzi, Ali Muhtar, Purwono Prasetyawan, Sabhan Kanata, Toto Winata International Review of Electrical Engineering, 2022 Indonesia, as an archipelagic country, has many small islands. One of the islands studied in the study is Sebesi Island, Indonesia. Diesel Generators (DG) are used to supply electricity needs in the short term. Sebesi Island has local energy potential such as Solar, Wind, and Biomass energy. DG can combine the local energy potential. The capacity of the photovoltaic (PV) system at Homer is expected to serve 50% of the total daily energy needs. Eight scenarios have been made based on the energy potential available to assess the most economical and environmentally optimal energy hybrid. The simulation results show that the first case and the second case have the best economic value. The first case is a hybrid system of DG, PV, and battery (BAT). The second case is a hybrid of DG, PV, Biogas Generation (GBi), and BAT. The first case has a contribution of 50%, while the second case has 71%. From an environmental perspective, the second scenario can reduce CO2 emissions the highest compared to other cases, 29.50%. The second scenario is the best choice to implement a hybrid energy system with a renewable energy contribution of 71%.
Optimal Planning of Hybrid Renewable Energy System Using HOMER in Sebesi Island, Indonesia International Journal of Renewable Energy Research, 2021
The Effect of Halbach Array Configuration on Permanent- Magnet Synchronous Generator (PMSG) Outer-Runner Syamsyarief Baqaruzi, Afit Afit Miranto, Dede Wahyuda International Journal of Engineering Science and Information Technology, 2021 Permanent-Magnet Synchronous Generator it can provide highly reliable power generation with small in size, no copper losses in the rotor circuit, no need for external excitation. We designed and simulated the PMSG with 12 slots and 8 poles with an alternating polarity magnet configuration: NN-SS-NN-SS-NN-SS-NN-SS-NN-SS-NN magnetic flux per pole in the outer stator and the inner stator has been assumed to be constant, following sizes and materials described in this paper. The generator's number of poles is determined by stacking several sections of the magnet side by side and grouping opposite poles in a continuous pattern. the initial design of the PMSG 12 slots and 8 poles outer-runner compare to see how the halbach array configuration changes the output parameter, it will be included. Proportional to the load size and speed The larger the magnetic flux generated by the movement of the magnetic field, the higher the rpm, and the heavier the coil magnetic flux obtained, the higher the induced voltage. This research use five speed variations varying from 1000 to 5000 rpm and load variation from 5 ohm, 15 ohm, 30 ohm, 60 ohm, and 100 ohm. With the effect that the flux distribution is voltage generated at a 5 ohm load only increases at 1000 rpm, while the increase in torque produces an increase in the amount of input power at 30 ohm, which is equal to both the speed and the amount of torque, where the input power increases at all speeds at a load of 30 ohm. This also arises when the output power generated at a load of 30 ohm increases by a high efficiency of over 86%.
Assessment of Economic and Environmental for a Hybrid Energy System in Sebesi Island, South Lampung, Indonesia Sabhan Kanata, Syamsyarief Baqaruzi, Ali Muhtar, Purwono Prasetyawan, Toto Winata 2021 9th International Conference on Smart Grid and Clean Energy Technologies Icsgce 2021, 2021 The use of new and renewable energy in the supply of electrical energy is something that needs to be considered. The use of fossil energy such as coal and diesel will contribute to a very large level of emissions that can lead to an increase in global warming. But on the other hand, investment for the construction of new and renewable energy generators is still relatively expensive. To reduce losses on investment costs, it is necessary to study the locations where new and renewable energy plants will be built. Sebesi Island is one of the most remote islands in Indonesia and has beautiful beaches and extraordinary natural resources. However, currently, the supply of electrical energy is still using diesel generators. Higher fuel prices and shipping costs, increasingly scarce fossil energy sources and the resulting environmental effects are the factors behind this study. Options for non-fossil energy use need to be considered. This study examines the economic and environmental feasibility. The software used is HOMER with 3 scenarios, namely: Case 1: three diesel generators or existing generators (3DG) as the base case, case 2: 3DG-PV-WT hybrid, and case 3: 3DG-PV-WT-BAT hybrid. The simulation results based on an economic review show that case 3 has the lowest net present cost (NPC) and level of cost energy (COE) values, namely USD 912,180 and 0.281, respectively. These two parameters were able to reduce respectively 29.29 % and 29.22% of the base case. Meanwhile, from the environmental aspect, it shows that case 3 also has a very superior performance. This case can reduce gas emissions by 68 %. This means that case 3 is very feasible economically and environmentally to be implemented in Sebesi Island, Indonesia in the future.
Economic and Environmental Assessment of the Implementation of Hybrid Auto-size Diesel Generators with Renewable Energy on Sebesi Island Ali Muhtar, Purwono Prasetyawan, Sabhan Kanata, Syamsyarief Baqaruzi, Toto Winata 2021 3rd International Conference on High Voltage Engineering and Power Systems Ichveps 2021, 2021 Sebesi Island is one of the small islands in Indonesia. The island has the opportunity to become a famous tourist destination in the future. The island has a beautiful beach panorama. In addition, the island has a lot of natural potentials. To meet its electrical energy needs, the island still uses diesel generators supplied by the state electricity company. The limitations of fossil energy, fuel prices, and transportation costs, as well as the impact of the resulting emissions, are the factors behind the research. Auto-size diesel generator (ADG) is still involved in this research as a form of the energy transition. This study examines the economic and environmental feasibility. The software used is HOMER. The scenarios being modeled are 1. photovoltaic (PV)-biogas generator (GBi), battery (BAT), 2. ADG-PV-GBi-BAT, 3. PV-wind turbine (WT), GBi-BAT, 4. ADG-PV-WT-GBi-BAT, and 5. ADG. There are six parameters used in the economic and environmental assessment, namely net present cost (NPC), cost of energy (COE), operating cost (OC), the renewable fraction (RF), reduction of CO2 emissions, and reduction of fuel oil. All scenarios will be compared with scenario 5 (base case). The simulation results show that the first scenario has the most advantages over the other scenarios. This scenario can be the best recommendation for the implementation of a hybrid energy system (HES) on Sebesi Island, South Lampung, Indonesia.
