Posts Tagged ‘alternative energy’

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)

South Korean Scientists Find Real Efficiency of Solar Systems

Solar System Sun Tracking DeviceManufacturers of photovoltaic (PV) solar panels know the panel’s theoretical efficiency, but it’s much more difficult to tell the actual efficiency. For this, solar companies send their panels to a lab for testing under real weather conditions.

Recently, I visited such a solar testing lab — the Solar Power Research Lab at Chosun University in Gwangju, South Korea. I was greeted by Mr. Choi Jong-sik, an engineer and a graduate of the department, who took me to see the lab with the most solar panels.

Out front of this lab, a small field of solar panels soak up sunlight. The panel’s designs range from flat to arched and even rotating; some are varicolored polycrystalline, others are neatly lined monocrystalline. Rotating panels have tracking devices that follow the sun (pictured here). The panels can rotate 180° and swivel vertically 53°, following the sun’s path across the sky. The array and variety of panels is stunning.

The Week in Cleantech News

cex.jpgFor those of you who are bettin’ folks, traders on the Chicago Climate Exchange view the Democrats as more bullish on cap-and-trade systems. So if you’re betting on a Democratic victory, you’ll want to buy those contracts now, in anticipation of a price spike on Nov. 5 (Politico).

Toyota Prius sales have topped 1 million and dealers in most markets simply can’t keep them on the shelves. Toyota says domestic inventory is limited by production […]

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.

A Big Week for Vestas Wind Systems

vestas wind systems, wind turbine industryDenmark-based Vestas Wind Systems (VWS:DC) had a big week. First, the world’s largest wind turbine manufacturer announced that they would be building a tower manufacturing plant in Colorado. Second, Vestas reported a 94 percent jump in earnings in the first quarter of 2008, as compared to the same period last year.

Although they have yet to disclose the location of the new tower manufacturing facility, it would be situated to complement the company’s fist North American blade manufacturing plant, which recently opened its doors in Windsor, Colorado.

For the tower plant, the company will need a large parcel of land served by freight rail, a combination that Northern Colorado can provide at several locations, including the Windsor location, where construction proceeds on phase two of the blade plant. According to the Northern Colorado Business Review, more than 1,000 new jobs could result from further expansion of Vestas’ manufacturing presence.

New Jersey’s Wind Power Plan

wind power at work

When you think about New Jersey, wind power probably isn’t the first thing that comes to mind. However, a growing number of communities are working to change the image of the state as a factory and freeway-filled wasteland into one of a sustainable energy empire.

As The Star Ledger reports, the township of Montclair recently installed two wind turbines that will generate 2,000 watts of energy—enough to power one of the town’s water supply tanks. While that may not seem like a huge achievement, consider this: The tank holds 2.5 million gallons of water.

And Montclair’s wind power effort isn’t even close to the only one in the state. In fact, New Jersey is plotting one of the most ambitious wind energy projects in the country.

Fuel from Trash Will Power California Garbage Trucks

landfill gas fuel300 garbage collection trucks in California will soon be fueled by the same trash that they haul. Landfill gas will be purified and liquefied, producing up to 13,000 gallons of liquefied natural gas (LNG) daily.

This facility at Waste Management’s (WMI: NYSE) Altamont Landfill in Livermore, California will begin operation in 2009. It comes with a price tag of $15.5 million, with grants providing $1.4 million.

Cleaner Fuel

Waste Management is the largest waste management company in North America and operates the largest US fleet of heavy-duty collection trucks. The company has a goal to reduce fleet emissions by 15% by 2020.

The ‘AquaBuoy’ Wave Energy Converter (w/animation)

aquabuoy-2-0-deployed_mms.jpg

Cool looking contraption, huh? What you’re looking at is Finavera Renewables’ latest project in scalable wave power technology. If you think that picture is pretty cool, you’ll enjoy the animation: [kml_flashembed movie="http://www.youtube.com/v/r89xQxZsaN8" width="425" height="350" wmode="transparent" /]

Photo: U.S. Minerals Management Service

First Wind Powered City

loess hill wind farmRock Port, Missouri is the first 100% wind powered city in the US. Loess Hill Wind Farm, with four 1.25 MW wind turbines is estimated to generate 16 gigawatt hours (16 million kilowatt hours) of electricity annually. 13 gigawatts hours of electricity have historically been consumed annually by the residents and businesses of this town of 1,400 people.

The local electric company, Missouri […]

The Cleanest Cars on Earth: Honda Civic GX and Other Natural Gas Vehicles (NGVs)

Honda Civic GX, NGV, Natural Gas Vehicle

Clean Burning Natural Gas Vehicles (NGVs) are hot commodities in some parts of the country, where fuel can sell for as low as $0.63 per gallon.

Unlike the world’s most fuel efficient car (VW’s 285 MPG bullet), the Honda Civic GX looks like a standard passenger vehicle. What makes it special is what you don’t see: tailpipe emissions that are often cleaner than ambient air.

The Civic GX is powered by compressed natural gas—methane—the simplest and cleanest-burning hydrocarbon available. With an economical 113-hp, 1.8-Liter engine, the EPA has called the Civic the “world’s cleanest internal-combustion vehicle” with 90% cleaner emissions than the average gasoline-powered car on the road in 2004.

And get this: in Utah, natural gas can be purchased for $0.63 per gallon.

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?

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Web 2.0 Expo San Francisco 2008

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