Implementation of Energy Diversification Policy to Fulfill Electricity Needs and its Impact in Environmental Quality Improvement on Sumba Island East Nusa Tenggara

Sumba Island covering East Sumba, West Sumba, Central Sumba and Southwest Sumba districts has become Indonesia's national program as Renewable Energy Iconic and targets by 2025, one of the goal is electricity needs on that island will be fulfilled by utilizing renewable energy sources (non-fuel). Implementation of energy diversification policies in Sumba aims to by utilizing local energy sources for electricity generation to meet the electricity energy needs of the Sumba people, and have an impact on improving environmental quality. For that it is needed requires analysis and mapping of electricity demand per user sector, mapping of renewable energy sources and plans for its use, can provide an overview of the demand and availability of electricity in the community of Sumba Island 2017-2025. Modeling of energy mix is needed and then illustrated that if there is no change in demand patterns and availability of electricity (moderate scenarios), high and low scenarios show an increase and fall in electricity consumption intensity, which is influenced by the rise and fall of regional economic growth rate, then compare with energy diversification scenario (optimization of renewable energy potential) if the mix energy is changed, fossil energy power plants (Diesel Power Plants) are gradually reduced and no longer functioned in 2025 and how that policy impacts to environmental quality in Sumba.