20/08/2026
What if existing buildings could become one of Indonesia’s fastest opportunities to cut energy use, and hence emissions? Different passive, active and behavioural measures shown below can contribute to reducing energy consumption—and when combined, the impact can be significant.
That is the thinking behind the Retrofit Guidelines for Green, Smart, and Net Zero Energy Buildings, developed by Indonesia’s state-owned electricity company PLN and GBPN to help turn energy efficiency from a technical ambition into a practical pathway for existing buildings. When implemented together, electricity consumption in PLN offices can be reduced by more than 50% compared to baseline, with a combined payback period of around four years.
PLN is putting the approach into practice by piloting retrofits in selected offices, using its buildings as living laboratories to test smart and low-carbon technologies, and documenting and sharing lessons that can inform other institutions.
This collaboration on retrofitting buildings to become net-zero energy buildings is creating a model that can be replicated across Indonesia and the Global South. More on this approach: https://zurl.co/THGPe