segunda-feira, outubro 25, 2010

Thinking about solar power

So, there's a huge solar factory being built in Canada that shall process enough energy to power an average of 12.800 houses. Nice, but this monster changes one impact to other: the vast area of forest that went down to build the 90 acres of factory will have its environmental impact in the years to come. Not that Embridge Inc., that deals with petroleum and has a huge leak of oil in Michigan to already account for, cares. In a (odd) way, they are trying to wet their feet in the clean energy business, what with petroleum not being a renewable resource and all and they're doing it the only way they know how to: the old way.

I still think that companies are losing money by not investing in research to harness solar energy from simple surfaces we already have built, instead of going about building factories. In fact, there's ALREADY good research been done about this subject in the academic world.

Here's one idea: build solar panels in the format of roof tiles. Make them simple to conect, maybe even wirelessly, with inductive contact, creating a grid. People can just change their existing roof tiles to the new tiles that will have the same measurements the traditional ones have. The collected energy can power common areas and reduce the public energy needed by that building. Every room in the building can have a solar powered socket to charge cellphones and other little gadgets with the surplus.

Another thing that I see coming in the near future: create paint that functions as solar cells. Paint the external areas of houses, buildings, parking lots with it and you'll have a huge grid of cells, enough to power more than just what the tiles above could collect.

There's already technology to transform glass windows in solar panels. And there's already a company doing the solar panels in the form of roof tiles. And here's flexible solar sheets being used to form a tent. So far all I found about solar paint was this article from 2005 about spray-on plastic solar cells being invented in the University of Toronto and a start up called NextGen developing paint that works prety much as I stated above, still not in the market.

So, don't build a new facility just to spread big solar panels, use the entire city as a facility. Partner with those small start ups and make lots of money selling the roof, windows, paint to make existing buildings, cars, tents, streets, any exposed surface solar powered. Yep, I bet that with the right amount of protection from everyday atrict asfalt too can be used to collect solar energy. There's market for services too: training, technicians, support, repair, sales...

I think that there IS a good place to build huge solar farms, by the way: desertic areas.  There are deserts in North America, South America, Africa, Asia and Australia. People that invest in developing cells using local materials as basis (like silica from sand, for example) will become as rich as the petroleum explorers today. Things are happening fast in places like Israel and California.