What was announced
In August 2026 Wayan Koster named five low-emission zones: Nusa Dua and Kuta in Badung, Ubud in Gianyar, Sanur in Denpasar and the Nusa Penida islands. Hotels, restaurants, villas, offices and homes there are expected to use PLTS atap, rooftop solar.
In July, at the Indonesia Solar Summit 2026, the governor told the licensing office to make rooftop solar a condition for new commercial building permits. He plans to formalise the zones through a gubernatorial decision.
Why Bali is in a hurry
Much of the island's power comes from the Paiton coal plant in East Java through undersea cables. In November 2025 Koster said cable failures had already caused blackouts.
According to the governor, demand is already above 1,200 MW and will exceed 1,400 MW by 2027. Without solar he does not rule out rolling blackouts.
What is still unknown
The detikBali report gives no regulation number, deadline or penalties. For now this is a stated policy, not a rule in force.
There is also a constraint from PLN, the state power company. Koster criticised its quotas on rooftop solar connections and asked for more room for regions to expand solar.
What the programme includes
Besides solar, the low-emission zone programme covers electric vehicles, forest protection, less single-use plastic in tourism and reliance on local traditions. Koster said this would raise the quality of Bali's tourism.
Nusa Penida is the priority, with a net-zero target for 2030. Fabby Tumiwa, head of the IESR think tank, backed the approach and tied it to Indonesia's 100 GW national solar programme.