1) Many rural villages in Indonesia lack access to electricity, with over 3 million people living without power. Distributed energy generation solutions using hybrid systems that combine solar, battery storage, and diesel generators can provide reliable off-grid electricity. 2) One success story is Akuo Energy Indonesia's Berau Off-grid Project, which installed three hybrid solar-battery-diesel systems ranging from 311 kW to 518 kW to electrify villages in Berau, East Kalimantan. 3) A hybrid system combining solar, battery storage, and biomass is proposed to provide 100% renewable energy for off-grid villages at the lowest lifetime cost of $0.18 per kWh. The biomass would