Indonesia’s state utility PLN and Saudi Arabia’s ACWA Power are moving forward with plans to build Sumatra’s largest floating solar farm on Lake Singkarak by 2027 — a 50 MW project central to Indonesia’s renewable energy transition.
But the path is complex. Local communities still bear the trauma of a devastating flash flood 25 years ago, which many associate with past hydroelectric development. Concerns now resurface about the impact of floating PV on endemic fish species and traditional livelihoods. Transparency, local engagement, and environmental accountability will be key. Developers have pledged to minimize ecological disruption and stay below regulatory lake coverage limits.
Lake Singkarak’s story highlights the importance of centering communities in the just energy transition — ensuring clean energy does not come at the cost of local well-being.
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