Archive for June, 2009

Spinach to power Solar Cells


2009
06.29

Since 2004, MIT researchers have created a spinach-powered solar battery, harnessing the ability of plants to convert sunlight into electricity.  Although still in their experimental stages as the electricity generated is not strong enough to power significant devices such as hand phones and laptops, the idea is still promising.

In China, scientists said they have succeeded in mapping out the structure of a protein complex that plays a principal role in photosynthesis in green plants.

The work, which is regarded by their peers as a once-in-a-decade breakthrough, sheds new light on our understanding of the process of photosynthesis, probably the most important chemical reaction on earth.

The complex, known as light harvesting complex of photosystem 2, or LHC-2, was obtained from the cell membrane of spinach.

Meanwhile, others are claiming that pupils can make a solar cell with spinach, toothpaste and a few other items found in any school laboratory. The device is called a Graetzel cell, and could trigger off a revolution in photovoltaic technology if it actually works.  We haven’t seen any evidence of it yet but if you know something about it, please let us know.

IDEA: Setting up Solar Energy Centers for community use & entrepreneurship training


2009
06.26

Even though the Philippines is a relatively poor country, it nevertheless has one of the most expensive electricity rates in the world, making it doubly hard for a micro-entrepreneur to sustain, much less, grow a business.

For example, even something as simple as having ice for fish so that it won’t spoil by the end of the day is either not available or too expensive, forcing fishermen to sell their catch at a lower price or preventing them from adding further value to their product (e.g.- making fish balls/cakes) for later consumption. By setting up and running a Solar Center that can produce cheap ice, fresh goods can travel further and have longer shelf lives.

But not everyone will know what to do so in order to make sure the energy generated is fully utilized, not just for consumption, but towards wealth creation, entrepreneurship training will be provided to the micro-entrepreneurs in terms of ideation, marketing, exporting, networking, etc.

This is only one example of how a Solar Center with photovoltaic cells set up to generate 1.4kw of energy per day can be used to create a large impact on a community. There are of course many other ways the electricity can be used for production such as lighting (the center itself), water purification, baking (all sorts of different goods), washing (machines) as a business and to free up labor for other production, charging batteries for other appliances (phones, radios, computers, etc.) that can be taken home or on the field where there may be no electricity or is costlier, etc.

Objectives:
(1) Reduce the costs of electricity for production so that products and services created by micro-entrepreneurs can become competitive
(2) Establish new products/service niches by micro-entrepreneurs
(3) Promote & educate large populations on the use of clean energy (nothing
beats seeing the real thing working)