Skip to main content

Freely-Speaking: A note on end-of-life care of solar panels

(Source: http://i-solarpanel.yolasite.com/)
Happy 2012 everyone!

A new year means fresh energy, and new goals. With respect to this blog it means more posts of interesting ideas and concepts and perhaps deeper discussions of ideas previously mentioned.

To start the year, I thought I would quickly make a mental note to myself about something I just listened to on "Deutschland Radio - Umwelt und Verbraucher" which translates into "German Radio - the Environment and the Consumer". Side Note: It's interesting that in the US, environmental protection and sustainability are often mentioned in conjunction with energy-independence, and security of the country while in Germany often times environmental protection and protecting the consumer are linked more often.

Anyway, the topic of discussion was what to do with solar panels after their useful time is up. The German and European answer: Come up with legislature that require solar panel manufacturers to take back and recycle an increasing amount of solar panels. This law would apply to all manufacturers including those from other countries.

Why was legislation required? 

Apparently, industry was not able to come up with guidelines all would stick to on their own.

What is the rational for this legislation now?

The lifespan of solar panels is about 20-30 years. Some solar panels contain toxic substances (like heavy metals etc.). A take-back and recycling mandate on the manufacturers makes sure that these toxic substances are disposed of in a responsible manner. More importantly though, it ensures that valuable resources are conserved and reintroduced into the value chain rather than having to mine these increasingly rare resources anew. Solar panels are rich sources for silicon, aluminum and glass afterall.

My personal opinion

While in the US, we are still struggling to come up with any CONSISTENT long-term framework, and the discussion of what to do with solar panels at the end of their useful life has note even entered the discussion, I think it's great for a government to be capabble of thinking this far into the future. By blogging about this, I hope to contribute a teeny-tiny bit to a starting discussion of what to do about solar panels after we are done using them here in the US as well.

Comments

  1. Renewable energies play an important role in the global commercial energy map. Many industries and private companies are getting a lot of benefits by using Renewable energy.
    renewable energy Kent.

    ReplyDelete

Post a Comment

Popular posts from this blog

Focus on Algae - Part I: Bioremediation

After spending the last few blog posts on different aspects of dissimilatory bacteria , I want to switch the focus to a different class of organisms I have been interested in for a long time now. These are the algae. Algae comprise a large diversity of "sea weeds" and an even larger variety of single-celled organisms that mostly are capable of doing photosynthesis. They include the ordinary sea-weed, and make up a portion of the green slime found around the edges and the bottom of a pond. More exotic types of algae can live symbiotically - that is together with another organism in a mutually beneficial way. Lichens are an example of symbiotic relationship between algae and fungi. More information about the evolution and lineage of algae can be found in this wiki article . Image via Wikipedia Typically, these organisms are either not mentioned at all or only in conjunction with toxic algal blooms. But lately, algae, of course, have been in the news recently because of the p...

Journal Club:”An Engineered Microbial Platform for Direct Biofuel Production from Brown Macroalgae”

Cover of Science Issue 335. It has been a while since we have done a journal club , and so today I thought I would write about an article I recently read. Adam J. Wargacki, who works in Yasuo Yoshikuni's group, recently published the above titled paper. In light of problems associated with the use of fossil energy sources (cost, scarcity, environmental impact, and geopolitical considerations), the search for new energy sources is starting to become more important. The paper in discussion today proposes that a coupled system consisting of brown macroalgae and engineered bacteria could be used. Of course there are more traditional biofuel feedstock sources such as corn and sugarcane. There a couple of hurdles such as the debate about “food versus fuel” and technical hurdles such as the degradation of lignocellulosic matter that need to be solved. We have previously discussed how microalgaecould get around the difficulties of corn and sugarcane in the production of bioefu...

Permaculture: nature is still smarter than us

Permaculture In the year 2010, there are many aspects of humans' daily life that would lead us to believe that we have dominated nature. Unlike the thousands of other species that have gone extinct, we have settled and thrived in almost every environment and every continent on this planet, aside from Antarctica. We have eradicated diseases like smallbox and subdued other diseases which previously decimated our populations on a massive scale (see The Black Death in the 1300s and Columbus' “discovery of the Americas in 1492). We have created chemicals that allow us to blast weeds and insects into submission and thereby cultivate thousands of acres of the same species on farmland; an environment that would be impossible in nature. But nature is still smarter than us. A lot smarter. And we still have much to learn from its processes. Permaculture is the idea of mimicking the ways that ecosystems work in the context of essential human activities: house and settlement design, farming...