The government commits to reduce emissions in the energy sector by using new and renewable energy by targeting the development of geothermal power plants (GPP) of 7,241.5 MW in 2025. Approximately 58% of geothermal potential is in forest areas with a carbon absorption function. This study will calculate the potential loss of carbon stock and the economic valuation of the carbon sequestration function in forest areas. The location of study is Mount Ciremai National Park (MCNP). The study was conducted on 4022.37 hectares which will be used as the location of the initial study and geothermal exploration area. The potential area of GPP location is divided into: avoid area, minimize area, restore area, and utilization area, considering the land slope level and zoning. The potential carbon stock lost due to the entry of the GPP project in MCNP is 168,311.99 tons of CO2, or 17.95% of the total potential carbon stock in the study area. The economic valuation of carbon stocks using the economic value of carbon is Rp. 5,049,359,810.00. This value is the cost of externalities as compensation for carbon loss from land conversion activity. It should include as input to the economic analysis of geothermal project development.@en

Most countries mitigate climate alter impacts by deploying renewable energy to decarbonize their energy system. One of the emerging renewable energy options is the integration of floating photovoltaic (FPV) and hydropower. The FPV has higher efficiency and helps to reduce evaporation and offset hydropower production during the dry season. Conversely, hydropower can overcome intermittent solar production due to its flexibility. Our study aims to estimate the energy potentials from FPV plants and hydropower integrations in Indonesia. As result, the country has 5,807 potential reservoirs for FPV and 26 hydropower plants with a reservoir area with a potential utilization of more than 1 MW. Those sites are suitable for 3 GW floating power plants and 2.8 GW hydropower. And those sites can reduce CO2 emissions by 2,911,197 tonnes per year. @en