Source: Unsplash
Bali consumes approximately 1,200 megawatts (MW) of electricity daily but only generates 900 MW locally. The remaining 25% is supplied via undersea cables from Java. This raises a critical question: Why does an island blessed with abundant sunshine, consistent ocean waves, and geothermal potential still struggle to achieve energy independence?
Around 85% of Bali’s electricity comes from diesel (PLTD) and coal-fired power plants (PLTU). The Celukan Bawang PLTU alone burns 8,000 tons of coal daily—all imported from Kalimantan.
Bali’s solar potential reaches 4.8 kWh/m²/day (enough for 5 million homes), yet adoption remains limited due to:
Rules requiring reliance on PLN (state electricity) hinder large-scale solar projects
Intermittent supply from renewables demands expensive stabilization tech
Tourism accounts for 60% of Bali’s energy use. Hotels and resorts prioritize grid reliability over investing in off-grid solutions.
With 280 sunny days annually, Bali has only installed 45 MW of solar PV—less than 5% of its technical potential.
Southern Bali’s waves pack 15-20 kW/m—enough to power 500,000 homes. Yet pilot projects in Nusa Penida remain small-scale.
Agricultural waste (rice husks, coconut residues) could generate 150 MW but is mostly unused beyond local initiatives.
Protected green zones (like subak rice fields) limit large-scale power plant development.
Some traditional communities reject energy projects citing Tri Hita Karana (ecological-spiritual balance).
Poor coordination between provincial, district, and customary village authorities slows permit approvals.
Decentralized systems like Tenganan Village’s solar-diesel hybrid prove local energy independence is possible.
Some hotels now adopt rooftop solar, aided by local tax incentives.
The 5 MW floating solar farm at Lake Buyan demonstrates successful collaboration between PLN and private firms.
Bali’s energy self-sufficiency isn’t just a technological challenge—it’s about aligning policy, culture, and economics. With its vast renewables potential and strong environmental ethos, Bali has all the ingredients to lead Indonesia’s energy transition—if stakeholders can unite behind a shared vision.
As a Udayana University energy expert noted: "Bali doesn’t lack resources—it lacks coordination. The sun, waves, and geothermal heat are already here. Now we must harness them without losing the island’s soul."
