CleanTechnica

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I ran across this article at The Oil Drum and thought it was too tasty to pass up. It describes a new design to help concentrated solar power (CSP) increase efficiency and reduce cost.

Here’s the problem: solar thermal collectors focus the sun’s heat onto a clear tube of fluid (see: Intro to Solar Thermal). The collectors generate the most energy when the sun’s rays are parallel with the tube of fluid.  Since the sun moves across the sky throughout the days and seasons, it only reaches this “sweet spot” certain hours each day. But, if the solar collectors could move to track the sun, their power output could increase dramatically. Keep in mind that CSP is one of the most efficient forms of solar power. Read the rest of this entry »

Many people envision solar power as rigid silicon panels mounted on a roof. With thin film solar cells, you’re more likely to not see them, or even know they’re there. This article is about a real-life thin film solar project.

Not many bloggers are able to witness the technologies we research and write about. It’s one thing to be able to buy afford a cool “green” gadget (usually not very green), but another to see the many forms of solar, wind, geothermal, etc., which are always changing and developing around the world. So when my employer decided to go solar, you might imagine my excitement.

At the moment I work for Magco Inc., a Tecta America company. Tecta is a national commercial roofing corporation that can install green roofs, solar lighting, and solar panels alongside a variety of traditional roofing systems. This solar project is pretty straight forward: our building has a big, flat roof on top of a hill without any shade. You’d have trouble finding a sunnier spot for solar panels.

I was double delighted when I heard that they ordered thin-film solar! Naturally inquiring minds wanted to know: why and what kind? Read the rest of this entry »

The micro mini Twist CFL: Big light, small package
When it comes to the advent of the compact fluorescent light bulb (CFL), I am proud to say that I was an early adopter. And while I instantly noticed a reduction in my monthly electric bill, I also noticed that the compact fluorescent was not without its flaws. I found that the early compact fluorescents were often too bulky, preventing their use in certain fixtures; that they took a while to ‘warm up’ to full their full brightness; and that the light they put off could be a little harsh, especially as compared to the warm glow of the Edison-era incandescent light bulb. But times have changed, and the new micro-mini Twist from SYLVANIA is evidence that CFLs don’t need to be big, slow, and bright to be effective.

The micro-mini’s size is one of its biggest appeals and is what jumped out at me right away. Featuring an ultra-small ¼ inch tube diameter and a compact integral electronic ballast, the 13W micro-mini is the smallest CFL on today’s market. Read the rest of this entry »

Aesthetic. Original. Functional. Who knew solar panels could make a statement?

Apparently Peter Richardson knew when he submitted a winning solar design to the International Design Awards. His idea is to turn disused water ways into functional space by populating them with solar panels shaped like water lilies. Aiming to increase quality of life, while generating energy, the lilies so impressed the Glasgow City Council that they expressed interest in developing a pilot project.

The technology itself is easily within reach:

“They can be moved and dismantled and are simply tethered to the river bed, integrated motors can rotate the discs so their orientation to the sun is maximised throughout the day.” (Project Description)

In other words, no new technology required, just some clever design. My concern would be recreational or commercial river traffic (how “disused”must the waterway be?). Would waves from wake disrupt the solar lilies? What about an impact on wildlife or wildlife’s impact on the panels? What if the river ices over in the winter? One hopes a pilot project would figure out the kinks.

What do readers think - would a product like this in your local water way make an impact on your community? (More images here) Read the rest of this entry »

My home is definitely my refuge.

Until recently, I thought I did a pretty nice job of doing my part for the environment when it came to my home: using eco-friendly cleaning supplies, buying CFL’s, setting the timer to regulate heat and air, but the more I read, the more I find that I can do. There are also a ton of companies emerging that are trying to make an impact while reducing their footprint.

Below are a few of my favorite online destinations for cool products and information for the home and home office.

Read the rest of this entry »

A few thoughts and a cartoon popped into my head last week while reading an article in Grist on oil companies having to clean up contaminated groundwater. The article stated that

“Some of the nation’s largest oil companies will over the next 30 years have to pay to clean up groundwater befouled with gasoline additive MTBE. In settling a suit brought by 153 public water providers in 17 states, a dozen companies — including BP, Shell, ConocoPhillips, and Chevron — will also have to pay a total $423 million cash.”

Thought #1: Finally!
Thought #2: 30 years! How about 3? And how about shipping clean water to homes in the affected areas in the mean time?
The article goes on to state that the estimated cost of the cleanup is $30 billion…
Thought #3: Why $423 million then?! I’m taking that same logic with me next time I fill up my car. “What, the cost is $4 a gallon? I’ll pay $1.50.”
It also mentioned that Exxon Mobile (among others) did not agree to settle…
Cartoon #1: Big Oil’s Mess? It MTBE, It Could Be, It Is!
And,
Thought #4: How can 17 states worth of contaminated groundwater even be cleaned up?
That’s when discovered that a few University of Aberdeen researchers have found that a whiskey bi-product may just do the trick.
Read the rest of this entry »

The Internet is so big, it’s easy to miss shopping resources, especially if you’re environmentally conscientious. Here’s an easy guide to green shopping online:

The Internet has revolutionized how we shop. Shopping has become an interesting intersection between society, economy, and technology. Its also an excellent place to find great deals. It used to be true that many green products were more expensive. Free trade? Organic? Recyclable? Post-Consumer? Get out the credit card and take a deep breath! But nowadays that’s not always true; in fact many green products are less expensive, or can save you a lot of money. That fact helps drive their popularity; so much so that even large corporations are taking efforts - or even pains - to go green. But with the mainstreaming green hype, we must beware greenwashing - misleading marketing or practices that lure consumers. On the flip side, buying stuff for the sake of stuff is not environmentally friendly either.

Green Companies:

It’s easy to know which companies are really making an effort.

National Green Pages: Co-op America provides the National Green Pages, which works like a phone book. Major brands include Patagonia, Seventh Generation, and Clif Bar; also features local stores.

LinksOrganic: an international guide to finding organic or environmentally-friendly businesses.

EcoMall: A 90s flash-back site with lots of great links for anything your heart desires.

Climate Counts: this site covers large corporations. It judges their carbon foot print and efforts to reduce it. It covers major brands in all product categories, but it does not cover individual products.

Green Peace Electronics Guide: similar to Climate Counts, covers large electronics corporations. Read the rest of this entry »

Having spent a lot of time in the wireless industry and being hopelessly addicted to my Blackberry and my Helio Ocean, I wanted to take a look at how manufacturers and carriers stand up when it comes to enviro-friendly action.

Nokia: Remaking Mobile
Nokia is one of my favorite handset manufacturers. Not only do they have some amazing concept devices, such as the Nokia Remade, a handset made entirely of pre-used parts from old tires to aluminum cans, they also currently have working devices on the market that are reducing impact. With covers made of recycled material and chargers that are Energy Star compliant and then some, Nokia is making bold strides in the right direction.

The 3110 Evolve’s biocover is made with 50% renewable material, and the packaging has been reduced by 60% for the handset. Along the a charger that uses 94% less energy that Energy Star compliance requires. Read the rest of this entry »

No doubt about it, I have my vices. Addiction to coffee seems to be genetic in my family, and so, really, there isn’t anything I can do about it other than try to drink responsibly. Aside from buying organic and fair trade coffee, what you drink out of is as important as what you drink.

I was very excited to see the new Sustain recycled and recyclable mugs from Aladdin. Made from eCycle, a new food-grade safe plastic that is recycled, it can also be dropped in any recycling bin at the end of it’s life cycle. At $9.99, I consider it a bargain, especially when the coffee itself is $5.00.

The real benefit is that by using this eCycle technology to make their tumblers, the company is: using 2/3 of the energy they would if they made the same product from “virgin” plastics; saving oil (which we should all be thankful for since one ton of recycled plastic saves 685 gallons of oil according to the EPA), and they are helping “close the loop” by using something that is not only recycled but can be reused again. It almost sounds redundant.

This is an example that warrants re-purposing and recycling for other products.