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An alternative solar cell

Post in 'The Green Room' started by begreen, May 24, 2012.

  1. begreen

    begreen Mooderator Staff Member

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  2. jimbom

    jimbom Combustion Analyzer

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    Promising on the cell front. Good on them. I would dearly love to see advances in battery energy density and energy/cost.
  3. Jags

    Jags Moderate Moderator Staff Member

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    Awesome. I have so much roof top space that I am drooling at the advancements of cheap solar cells.
  4. woodgeek

    woodgeek Minister of Fire

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    The Grätzel's are cool tech, but the lifetimes in (laboratory simulated) service have been quite short.
  5. fossil

    fossil Accidental Moderator Staff Member

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    The other day I was reading an article about some rooftop solar panel installations going in, and there were a few "action shot" pics of the installers handing the panels up and positioning them/permanently fastening them down onto the roof of somebody's house. Well, that got me to thinking, because this somebody's house had a typical asphalt composition shingle roof on it...the kind that's expected service life is 15-30 years. No telling how long since it was installed. What happens when the roof needs to be replaced? :rolleyes:
  6. begreen

    begreen Mooderator Staff Member

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    I was wondering what the lifetime would be with a dye based system. This will have to be worked out in order to be viable in the market.
  7. woodgeek

    woodgeek Minister of Fire

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    Indeed...its the dye sensitizers that essentially 'fade in the sun', shutting the cell down.
  8. begreen

    begreen Mooderator Staff Member

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    Coming from the photo industry that was my first thought when I saw dyes.
  9. btuser

    btuser Minister of Fire

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    Exactly what you think has to happen. Because sun is the real killer for the roofs I'm sure it will extend the life of the shingles under the panels, but everywhere else will be the same.

    Depending on the installation I bet you could put another layer over the exposed parts of the roof, and just kinda shingle around the panels. Something to think about if you can get another 10 years out of it vs having to remove/replace the panels. I'm sure as roofers see more and more of these things they'll get good at removal/re installation.

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