One of the most intense areas of development today is the primemover that are environmentally friendly with renewable energy.
There is the development of Otto and Diesel motors with high effeciency, the use of biofuels from a jatropha, coconut, oil palm, sugarcane, cassava, marine algae.
Seaweed is likely to succeed because the potential is huge and only a few are consumed as food.
There is the development of fuel cell with hydrogen fuel produced by marine algae. There is a development of power plants with fuel-free and very low pollution power plants such as sea water, sunlight, geothermal, wind, etc.. Indonesia in this case has the potential for energy resources, so it's good if the experts began to study and develop it from now on.
More than 1.6 billion people in the world have no access to electrical energy. Electrification ratio in Indonesia is only as much as 57 percent, so there's still 43 percent (+ - 102 million) of Indonesian citizens have not enjoyed electricity.
It needs to be developed an alternative energy power plants which are cheap and easily shipped and assembled in remote area and affordable for the poor. And I think wind and solar energy is the solution.
Read also Pico wind turbine with bicycle wheel rim.