PLN Prepares to Execute 21 Solar Power Plant Projects in the First Semester of 2026
PT PLN (Persero) plans to execute 21 solar power plant (PLTS) projects in the first semester of 2026. This is part of accelerating the energy transition and strengthening national energy resilience.
PLN President Director Darmawan Prasodjo stated that this step is an implementation of the 2025–2034 Electricity Supply Business Plan (RUPTL). There are efforts to promote the use of domestically based energy at more efficient costs.
“In the first semester, there are already 21 PLTS projects and PLTS integrated with Battery Energy Storage Systems that are ready to be executed,” said Darmawan during a working meeting with Commission XII of the House of Representatives at the Parliament Complex, Senayan, Jakarta, on Monday (13/4/2026).
The development of PLTS is combined with Battery Energy Storage Systems (BESS) to reduce oil fuel (BBM) consumption, particularly in diesel power plants in remote areas. PLN targets a reduction in BBM use at 741 diesel power plant locations with a total of 2,139 engines through replacement with solar-based renewable energy and energy storage systems.
“In essence, we will gradually and as quickly as possible, including through transparent, credible, and competitive partnerships, reduce the use of imported-based energy and expensive energy such as BBM,” said Darmawan.
In the 2025–2034 RUPTL, PLN plans to add 69.5 gigawatts of generation capacity. As much as 76 percent comes from new and renewable energy, including solar power which is one of the backbones of development. The development of renewable energy faces challenges of mismatch between the locations of energy sources and electricity demand centres.
“In carrying out this energy transition, there is a challenge, namely the mismatch between the potential locations of renewable energy sources and the demand centres,” said Darmawan.
To address this, PLN is preparing the construction of the Green Enabling Supergrid spanning around 48,000 kilometres of transmission circuits to connect renewable energy sources with load centres. PLN notes that the national electricity system as of March 2026 is in normal condition. Net installed capacity reaches 71 gigawatts with a reserve margin of around 39 percent, so electricity supply remains reliable.
“Net installed capacity of 71 gigawatts, reserve margin of around 39 percent so the national electricity supply is in a reliable condition,” said Darmawan.
From the primary energy side, gas and coal supplies are in a safe condition with around 12 days and 15.9 days of operating days respectively. PLN is also accelerating the realisation of projects in the RUPTL with a total of 547 priority projects covering procurement, construction, to commissioning stages.
PLN is preparing the launch of the Giga One project bundling programme starting in 2026 to accelerate green energy development while lowering the cost of electricity production. This step strengthens the foundation of national energy independence in the long term.