ELECTRICAL ENERGY POTENTIAL FROM 7 TYPES OF COASTAL PLASTIC WASTE IN SELAYAR ISLAND

Abstract

Electrical energy reserves for SULBAGSEL in March 2024 are only 167.01 MW. This indicates that South Sulawesi Province is on the verge of an energy crisis. There are 3 (three) regencies in South Sulawesi Province that still have the lowest Electrification Ratio (RE) figures, They are Jeneponto, Pangkep, and Selayar Islands Regencies. Selayar Islands Regency has an RE of 57%. The population of Selayar Islands Regency in 2022-2023 will reach 140,312 people. With this population, the waste generation of Selayar Islands Regency is 25,774 tons/year originating from households, while the generation of coastal plastic waste along the coastline of Selayar Islands Regency is 670 km long, 2,179 tons/day, so researchers were inspired to analyze the potential for electrical energy that can be produced from coastal plastic waste in the Selayar Islands Regency in terms of the calorific value content. The method used is proximate analysis by calculating water, ash, volatile solid, Fixed Carbon, and Sulfur content. After that, an analysis was carried out to calculate the potential electrical energy that could be produced from plastic waste/waste using traditional and bento method calculations. Based on the calculation results of the potential electrical energy that can be produced from 2,179 tonnes/day of coastal plastic waste based on the type of coastal plastic waste/waste, the maximum potential electrical energy that can be produced from PS type plastic waste is 733,297 kWh/year or 2,009 kWh/day. The smallest electrical energy potential is produced from LDPE plastic waste, amounting to 514,140 kWh/year or 1,408 kWh/day. This shows that the greater the Net Calorific Value of plastic waste, the greater the potential for electrical energy