Abstract.Mining industry provides benefits to the state in mining as a source of state revenue and foreign exchange earner, producing raw materials for the industrial, infrastructure and socio-economic facilities, and employment providers.

Environmental sustainability is a key issue of the coal mining sector. This is because the impact of damages on activities undertaken in this sector is deemed vulnerable to environmental sustainability. The damage that occurs has an impact on environmental unsustainability. The value of environmental sustainability is set forth in the Government Regulation No. 46 of 2017 on Environmental Economic Instruments. Under this regulation, any activity that has an impact on the environment including the coal mining sector shall assess the damage it causes. The mathematical model of environmental benefits and cost of coal mining discovered by Juniah (2013), is an expansion of the extended mathematical model of the benefits and costs of Munasinghe (1997). This model can be used and implemented to assess environmental losses and determine the value of environmental sustainability of coal mining as intended by the Government Regulation of the Republic of Indonesia. The environmental losses can be minimized by utilizing water void mine as raw water. This model can also be used by government, stakeholders, and mining investors to assess the sustainability of the coal mining environment for the resulting externalities, and the utilization of mine void water as raw water.

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The obligation to use low carbon emissions power plants encourages the increased utilization of renewable energy generation. Among the whole renewable energy plants, photovoltaic (PV) is a modular plant that is easy to implement, which the utilization reaches 100GW in the year 2017. By the increasing use of PV globally, the health of PV modules needs to be a concern because, during the operation, PV modules can experience various faults. Almost 50% of the overall fault is the hotspot which is very hard to detect on a wide area PV farm. For example, a 30 MW PV generation with an area of 60 hectares and composed of 126000 modules (consists of millions of cell), the existing hotspot detection methods takes up to 210 days. The long time and not continuous detection lets the hotspot to degrade and burn the modules. To prevent catastrophic failure due to hotspot, a detection method that can detect the fault quickly is needed. The proposed method, thermal imaging using a fish-eye lens could be used in this case as it has a very wide angle of view, which allows monitoring all of the PV modules in one detection period.

Development of human society (social), economic development, and environmental preservation are the three pillars of sustainable development. They must be implemented simultaneously and balanced. Two paradigms can be used to implement sustainable development, namely the economic development paradigm and the human development paradigm. This paper proposes a novel concept of human development in the Papua -Indonesia Province using a system thinking approach. This paper also proposes a novel modeling and simulation electrical system using a system dynamics method to fulfill human development demand. As an object of modeling and simulation, an electrical system in several regencies and municipality used. The simulation model results from the novel concept of human development in this study are projections of electricity demand and installed capacity of the 2016-2050 power plants in the BaU, moderate, and optimistic scenarios. Increased electricity demand and the installed capacity of the power plants are a function of the human development index and development acceleration. The average increase in electricity demand is 3.8583; 5.0652; 8.1779 and 7.1122 percent per year for the BaU scenario, 0.5088; 0.3404; 1.1578 and 0.6726 percent per year for the moderate scenario, and 0.5100; 0.3422; 1.1694 and 0.6760 percent per year for optimistic scenario. The average increase in installed capacity of the power plant is 3.

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Biodiesel has been produced since 2006 in Indonesia and regulation of biodiesel blending has been set, but the actual blending rate was never reached the target. The research aims to increase biodiesel production to achieve mandatory target and reduce diesel oil import. It will project biodiesel production achieving demand in Indonesia until 2025 and proposes some strategies to increase blended biodiesel production by constructing system dynamics modeling. The research shows, there are 3 scenarios to increase biodiesel production; palm oil cultivation land, palm oil productivity and refined CPO shared. To meet blended biodiesel demand, cultivation land should be increased to 3.2-6.5% per year, productivity should be fixed to 12.54 ton/ha and refined CPO shared should be adjusted to 56.9-65.4%. This scenario also will reduce diesel oil import to 7.16-9.82 million kL per year. Refined CPO shared is the most influenced variable; therefore the government should consider to make refined CPO export limitation policy.