On the verge of new technologies which enable the use of alternative sources of energy, Solar Energy is a topic highly discussed in Engineering and Economics. It is not only the nature of Solar Energy, but also the cost of the installation of a working system compared to the conventional wired systems what is on the balance of sustainability.
Barry Cinnamon, CEO of Akeena Solar recently accepted the invitation to a Q&A round with Scientific American journalist and from his well-informed point of view, it can be extracted the following conclusions …

Power, Electric Power is a constant of modern lifestyle and became absolutely necessary at around the first half of the previous century. Though the continuum of the power generation scheme of modern cities, there is an outage from times to times.
Most of urban citizens can deal with an outage, but there are some critical situations where energy cannot be interrupted for more than a few seconds, in some cases - as Intensive Care Units of the Hospitals - the timespan is even more reduced.
Emergency Power Systems
According to Wikipedia, Emergency power …

Haven’t you heard about the global warming? Didn’t you know that the earth is experiencing changes in its global climate due to the huge emissions of carbon oxydes to the atmosphere for decades? Of course you have noticed. One of the solutions spinning at the table-top nowadays is the commercial and industrial use of biofuels. As the biofuels come from simpler and lighter carbon sources - mainly organic - they are more easily degraded and recycled. Also, they produce less carbon monoxyde (the invisible killer gas), sulphurs and other toxic …

I recently read a report describing a new technique for generating solar energy at a lower cost than with traditional photo-electric solar cell made of silicon.  The research have been conducted at the Nanomaterials Research Center of Massey University, New Zealand.
These new experimental photo-electric cells consists basically of dye-sensitized cells.  What’s this?  Basically, the researchers tried with differente dyes, usually organic or primarily derived from organic compounds.
For example, they use a green dye, very close -chemically speaking- to clorophyle.  Clorophyle is such an abundant substance in Nature, as long as …