Archive for the ‘solar energy’ Category

Cool Tech of the Week: Solar Water Lilies

Concept Solar Panels on the River ClydeAesthetic. 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 »

New Solar Trends at Solar 2008 Conference in San Diego

New trends spotted at the American Solar Energy Society conference last week in San Diego (courtesy of Illinois Solar Energy Association President Mark Burger, who attended):

  • From Bosch, a new generation of solar flat plate collectors (used in solar thermal water heating applications) that can be mounted on the roof at a lower angle, addressing some peoples’ aesthetic concerns. The panels are also lighter-weight and easier to mount even on high roofs. Low-profile collectors were also unveiled by Schuco, Viessman, and Velux. Perhaps next year, one of the innovative solar companies will be from the U.S.?
  • Solar thin film technology is exceeding expectations, with market share estimated at 3%, vs. 1-2%. Thin film is the new solar kid on the block, celebrated because of its lower cost, higher efficiency and more flexible applications.
  • SolarBuzz reported a 62% increase in world PV production. “Germany’s PV market reached 1,328 MW in 2007 and now accounts for 47% of the world market. Spain soared by over 480% to 640 MW, while the U.S. increased by 57% to 220 MW, [making it] the world’s largest market behind Japan, once the world leader.”
  • ASES (American Solar Energy Society), the conference’s sponsor, announced a push to establish more student chapters, in order to enlist solar energy’s future leaders. (Photo from VELUX image gallery.)

Related Posts:

Solar Power Goes to Extremes

Solar System Leases: Taking the Industry by Storm

Solar Thermal Electricity: Can it Replace Coal, Gas and Oil?

Photo from Velux website

Solar Power goes to Extremes for 5cents per kwh

Sungri XCPV

Xtreme Concentrated Solar Power: if a magnifying glass is like lightning to ants, this would be their atomic bomb.

We already know that concentrated solar power (CSP) is shaking things up in the solar industry. A subset within the industry is turning up the heat. “Extreme” Concentrated solar magnifies intense sunlight onto a solar cell, at temperatures that could melt it, to boost efficiency for less money.

The holy grail of renewable energy is not just efficiency but competitive pricing. Most consumers don’t want to wait 5-10+ years to earn back their investment in energy savings, assuming that they can afford solar. Never mind the added value of generating some of your own energy. Utility-scale facilities hinge not only on cost, but infrastructure. If you build your solar/wind farm in the desert, transmission lines may not come out to meet you. So when someone claims to have a cheap, efficient solar technology, people pay attention.

Extreme Concentrated Solar stands out because it claims to be affordable and very efficient. Unlike solar-thermal (CSP), which utilizes the heat of the sun, this technology still converts light into power (photo voltaic). So many solar companies have attempted to reduce cost by rising to industrial scale, but this method takes the opposite approach. XCPV (extreme concentrated photo voltaic) uses very small solar panels combined into a module design, and modules are infinitely scalable. Read the rest of this entry »

Top 10 Renewable Tech Gadgets

solar fiber-optic lighting

There are a lot of cool gadgets out there, but there’s a fine line between what’s cool and what’s useful. This is a green list of gadgets that are useful, but boast the extra-cool factor of using renewable energy. No batteries required!

10. The Ship has Landed

The lightship is a solar-powered LED mounted on suction cups. Result: a portable, hands-free, solar light. It’s even weather proof and weighs a slim 8oz. For under $15, this is the best 8 hours of clean light I can think of, and I might just get one for my car/camping trips/travels.

9. High-tech pool toy? Read the rest of this entry »

Renewable Energy Increases Home Values

353493661_0151e8185f.jpgBuildingGreen.com features a story on the value that renewable energy can add to a home. Amy Levin, a realtor who completed a LEED platinum registered gut rehab in Washington, DC, had her home appraised at 10% higher value than comparable properties. Interested buyers made offers that exceeded her green investment costs, even though the house wasn’t listed. People wanted to rent her house, even though she built it for her own residence.

The solar panels on the roof heat the water (and they seem positioned to shade the air conditioner, another energy-saver). An article in Kiplinger.com summarizes “sunshine economics”: Read the rest of this entry »

Building the Next Generation of Solar Experts — Here and in Central America

resize2successful-installation-of-solar-panels-in-santa-librada-dec-2007.jpgHere’s a chance to support a great group making a direct, positive impact on the global community: Northwestern University’s chapter of Engineers for a Sustainable World has done rural electrification work in the isolated community of Santo Domingo, Panama. In the words of the Northwestern students:

“We collaborate with the village to provide families with electricity generated by solar panels. We will train and equip community members to install and maintain solar panel systems in the 14 households that comprise their core community. From April 24-May 13, 2008, our Panama Solar Power project is participating in a contest to earn a permanent spot on Global Giving’s website, where donors can view global aid projects and contribute to their favorite ones. If you visit the Global Giving website at this link between now and May 13, you can not only contribute to the project but help assure it a future stream of financial support.”

I love supporting projects like this because of the magnified learning that happens: not only do the villagers get trained, but college students learn more than they could ever learn in a classroom; they learn how to collaborate with people in need and put them in control of their lives.

Clean Music, Activism, and Jack Johnson–All at Once

solarjack.jpg
Well, Billboard beat me too it. It’s probably better that way–because they focused on a few bands I didn’t even know existed. I was going to do a piece on Jack Johnson and his ability to create music from a studio powered by the solar panels that cover the roof, and create change from a sustainable lifestyle powered by his words and actions. Then I decided I’d branch out to include more bands, since Jack isn’t the only musician with sustainable style. Then I found this Billboard article.

I wasn’t too bummed, because as I alluded to earlier, it did open my eyes to Mana and their Selva Negra Foundation, and Missy Higgins and her carbon neutral tour. The article also highlighted the other things their top ten green bands, or “Green Ten”, are doing to share their music and their ideals. Like, The Roots giving away autographed compost bins, or Radiohead’s desire to travel only when needed, and to partner with Best Foot Forward when they do, or Serj Tankian’s Sky Is Over website, or a whole fleet of biodiesel buses, etc… (I’ll let you read the article for more).

I was also happy that Billboard did leave out one of Jack’s most important “green” features, so that I could be left with a little writing of my own…
Read the rest of this entry »

Solar System Leases: Taking the Industry By Storm

solar panels, solar house, solar electricityBuying a solar system is similar to going to Cosco and buying a 30 year supply of a staple. It will have a large upfront cost, but will result in long-term savings in states with good solar energy potential. What if you could lease a solar system and have the savings outweigh the monthly cost?

SolarCity is changing the landscape of the residential solar market in California and the Phoenix metropolitan area by offering solar leases, which significantly reduces the upfront cost of going solar.

“Customers have called for alternatives to solar purchasing, and our innovations in financing will allow them to get the benefits of renewable energy quickly, easily and affordably,” said David Arfin, Vice President of Customer Financing at SolarCity.

Read the rest of this entry »

Power Towers Store Enough Solar Energy to Run a City

_42877005_mirrors_bbc_203jpg.jpegWe have featured Concentrated Solar Power several times in this space, so it was nice to see that the Science section of the New York Times is finally starting to cover large-scale solar thermal plants used for generating electricity. (An article on SkyStream wind turbines is in the same section!)

The great news about solar thermal “Power Towers” is that they are able to store solar energy, which has always been a problem before. How does a solar “Power Tower” work? Read the rest of this entry »

It’s a Smog World After All!

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Not long ago I was visiting my old hometown of Chicago, walking through the streets of Bucktown on my way to my favorite bar (Map Room) when I noticed a cool house on Milwaukee Avenue near Hoyne. This “cool” house had a garden and two wind turbines on the roof (if I had the dough I would purchase two as well–leave ‘em alone on the roof and hope they’ll procreate!). I slowed my gait to check the place out. I sought no more info, as I was excited to get to Map Room.

This weekend, a few months after my trip to Chicago, I was returning some books to my local library. They have a “free magazine” rack near the door so I stopped and grabbed a gardening magazine and a few National Geographics from 2007. When I got home I began flipping through the October 2007 National Geographic which highlights the pros and cons of ethanol (for more read this post from Gas 2.0), and there on the page right after the table of contents was an Ameriprise Financial article about the place I walked past in Bucktown a few months earlier. It is the home of Frank and Lisa Mauceri and their record company Smog Veil Records.
Read the rest of this entry »

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