Burdened by oil imports and subsidies for more than 5000 diesel power plants, Indonesia aims to use crude palm oil (CPO) as fuel in the power plants. Previous studies only focused on the technical feasibility of using CPO. Therefore, this study aimed to enrich the existing literature by analyzing the technical feasibility of using CPO, degummed CPO, and bleached palm oil (BPO) fuels on endurance test for 500 operational hours with a 20 kW diesel engine capacity for each type of fuels. Our analysis included component rating and the measurement of specific fuel consumption, emissions, oil dilution, and deposit materials. The assessment concluded that diesel engines using CPO, BPO, and degummed CPO increased specific fuel consumption, deposit formation, and emissions of carbon monoxide and carbon dioxide compared to engines using a 30% FAME blend in HSD or Biodiesel 30. This implies that CPO, BPO, and degummed CPO could be used in diesel engines, though fuel consumption and maintenance costs tend to increase. Based on the test results, we provided an efficient CPO supply chain from CPO mills to diesel power plants.@en

Smart cities offer an opportunity to households to use low-carbon electricity from rooftop solar photovoltaic (PV). The capacity of rooftop solar PV has been growing rapidly in a developed country, especially Australia that has a capacity of 8 GWp in 2018. Developing countries also have a similar aim. For an instance, Indonesia has encouraged the use of rooftop PV through the regulation of the Minister of Energy and Mineral Resources Number 49 of 2018 concerning the use of rooftop PV systems by consumers of the State-owned Electricity Company. To boost rooftop solar PV investments, Indonesia needs to adopt successful programs in developed countries, such as an application that can provide information on the benefits and costs of rooftop solar PV shortly and comprehensively. Our study aims to create an application, called the electronic survey, monitoring, and reporting of PV (e-SMART PV), application. Compared to other similar applications, e-SMART PV is able to inform the investment costs and potential for electricity production by considering the regulations in Indonesia that are different from developed countries. Moreover, e-SMART also has better economic analysis compared to existing similar applications.@en