Overview
Energy and world change. It’s all about sustaining our world’s energy demands which increases every year. How can we sustain our way of live if energy resources such as fossil fuel run out? As can be seen in the diagram below (taken from BP statistical review of world energy, June 2010), our fossil fuel reserves-to-production is clearly not enough to support our rising energy consumption. Just take a look at China, they were once a net exporter of coal but now they are the net importer as energy need increases.
Today’s lesson seeks to wake all of us and inform us of the urgent energy crisis all over the world. It instills a sense of urgency that we should find ways to produce energy, to replace the non-sustainable one. We need to ensure energy security.


So throughout the presentations, it gave me an overview of the different kinds of energy renewable sources such as wind turbine. Before I dwell into the stuff that interest me, I thought it was good to make a distinction that renewable does not = sustainable. In Marvin’s presentation, he said that renewable energy sources is continuously available but requires good management while sustainable energy resources are supplies that are not renewable but can sustain for a long time. Example of renewable energy would be rivers while sustainable would be radioactive material that produces a lot of energy. Marvin had also sum up the advantages and disadvantages of each type which implies that none of it is more superior to the other and we must have a mix of all to sustain the world’s hunger for energy usage. So basically, the class focuses on the issue of how the world will survive many decades later.

Interesting observations
The technology that Patrick brought up was pretty interesting in that it uses carbon dioxide, a gas that we have often tried to eliminate!! The project centres on carbon capture and recycling (CCR) where it captures CO2 and store it, creating a closed loop that is self-sustaining. I guess this will be beneficial since it eliminates the CO2 from the environment and also does not need feed itself. However, I feel that if this gives on, there will be an increase amount of CO2 since the CO2 remains stagnant for the CCR while we still give off CO2 which I suppose is one of the disadvantages.
The better form of invention would be the one brought up by Sweeney on fusion energy that uses the universal force (sun and star) to produce a large amount of energy. Moreover, it does not use CO2 so it is considerably clean. The technology once built, is also self-sustaining. Thus, from the two kinds of technology brought up by Patrick and Sweeney clearly shows the importance of self-sustainability in today’s rational for energy resource technology.
Even in Singapore, the test for electric cars is being conducted. Renault-Nissan will supply electronic vehicles (EVs) to the Singapore market and share their knowledge on the technology. Moreover, Keppel Energy is also targeting to develop charging stations and other infrastructure that supports the EVs. Therefore, though Singapore does not have space for wind turbine and solar panels, it is working hard in being part of the sustainable energy source project.
Speaking of solar panel, I felt that the use of incentive to facilitate people to install solar panels was an excellent idea. It really speeds up the process for change as it benefit not only the uses but the society as a whole.
Key takeaways
Well, I guess the main key takeaway would be the importance of searching for renewable energy resources and that crisis often spurs innovation and problem solving. Hence, I feel that even though the use of renewable and sustainable energy was not widely implemented all over the world, I think it will be when the time comes but since we have the resources and power to do research, we should do it now then wait for the crisis to approach us.
Further discussion
Maybe we could discuss on the different kinds of research and development of renewable energy across the globe and how each country focuses on the technology which they deem is useful or sustainable to them.
Rating
8/10 as I learnt a lot on renewable and sustainable energy and the urgent need to start our green revolution act.