A survey conducted between Nov. 2011 and Jan. 2012 investigated electrical energy consumption of lighting in urban households in Indonesia. Data was collected from 600 respondents living in seven major cities in Indonesia, of which 474 (79%) of the respondents were considered to be valid. Results show that compact fluorescent lamps (CFLs) are widely used in Indonesian households. The results of the survey were then used to initiate energy saving programs that would work to reduce the need of new power plants. It was found that if an energy efficiency improvement program is implemented by replacing the conventional lamps with the efficient ones from 2012 to 2030, then the costs of saved energy (CSE) of the program are found only a small fraction of the long range average cost (LRAC) of electricity generation expansion, ranging from 6.2% to 1.6% of LRAC.
