I asked this question in the Wisdom of the Crowd:

What is the best way to lower energy cost for consumers?

Here are the responses: (54 Votes)
44 % - Get Singapore Power to reduce their margins.
39 % - Remove govt charges on energy
11 % - Open up the energy market for competition.
6 % - Provide more pricing options for consumers. 

See the pie chart at: 
http://www.wisdomofthecrowd.sg/chart.aspx?ID=1100