The average wind speeds in Indonesia range between 1.3 to 6.3 m /s.61 The main wind energy potential areas are located in East and West Nusa Tenggara (eastern and western portion of the Lesser Sunda islands, central south and eastern south of Indonesia) which have average wind speeds of more than 5 m /s. The approximate wind power potential in Indonesia is estimated at around 9 500 MW. However, Indonesia is lagging behind its potential, with an installed capacity of around 1.2 MW. A database with wind energy potential of each region is available from the National Institute of Aeronautics and Space (LAPAN).62 In Indonesia, the development of renewable energy is currently regulated by Presidential Decree No. 5 / 2006 regarding the national energy policy63 and Blueprint energy policy 2005.
The Directorate-General for Electricity and Energy Utilisation (DGEEU) has a sub-directorate New & Renewable Energy which has set a target of 250 MW electricity from wind energy on grid and 5 MW off grid in the year 2025.64 The wind energy roadmap, which is currently implemented is shown in table 12. Promotion programmes The Indonesian government has a clear promotion programme through its wind energy road map. Permission procedures To facilitate the procedure to develop renewable energy projects, the Indonesian government65 has changed a number of laws in the energy and mining sector, in order to give Provincial Governments the right and responsibility to issue concessions, and operating licenses for renewable energy and energy efficiency projects. The main actors which provide permits and support to the project developers are PLN and MEMR (DGEEU). For setting up small scale wind energy schemes, the Agency for the Assessment and Application of Technology (BPPT), the Ministry of Mines and Energy-Directorate- General for Electricity and Energy Development (DGEED) as well as the National Institute of Aeronautics and Space (LAPAN) could be contacted for project development issues. Contracts to local consulting, planning and engineering companies as well as contacts to wind energy technology dealers can be provided by APETINDO, the Indonesian Association of Renewable Energy Sources. Grid connection conditions To connect wind farms to the Indonesian electricity grid, the project developer must contact PLN.