Wednesday, July 15, 2009

GeoBulb LED light bulb

GeoBulb II by C. Crane
GeoBulb II by C. Crane


You might look at the GeoBulb® II design as being sexy and sculptural.

Or it may look a little exoskeletal to you.

But either way, it is the low energy consumption of this LED light bulb that should really catch your eye.

In its Cool White form, the GeoBulb II delivers claims to deliver approximately the same illumination as a 60-watt incandescent light bulb while using only 7.5 watts of power! That's almost an 87% energy savings!

With a projected life span of 30,000 hours, GeoBulb II's manufacturer C. Crane says the bulb should last for 10 years of 8-hours-per-day usage. The bulb also comes with a comforting 3-year warranty.

As for the light quality, like many LEDs, the light is very white, with almost a bluish tint. That may sound unappealing, and you probably wouldn't want to use the GeoBulb II for mood lighting, but the fact is that the GeoBulb II is actually fantastic for use as a reading light. Somehow it makes reading printed materials much easier and seemed to reduce eye strain, at least for me.

GeoBulb II by C. Crane
GeoBulb II by C. Crane

(If you don't want such a blue-white light, C. Crane does sell Soft White and Warm White varieties of its GeoBulb II bulbs, but those are only rated as equivalent to 50-watt and 40-watt incandescent bulbs respectively. We presume these other varieties have some sort of coating on the bulb that 'softens' or 'warms' the light but also cuts down on blocks some of the luminescence.)

The only drawback I can see here is still price. Even after a 15% price reduction, the GeoBulb II will still set you back $99.95. Yowzers!

It's true that the GeoBulb II will save you a lot in energy costs over the long run, but it's still hard to imagine too many folks shelling out $100 per bulb when it's possible to buy a 12-pack of Sylvania CFL bulbs at Amazon for around $24. True, the CFL bulbs use almost twice as much electricity (13 watts) as the GeoBulb II to produce the same amount of lumens (60-watt incandescent equivalent), but on the other hand the GeoBulb II is about 50-times more expensive.

How many light bulbs do you have in your home? I have about 15 in my apartment. That means I could light the whole apartment for $48 with the Sylvania CFLs and have plenty of leftover replacement bulbs. Or I could light the apartment for $1500 with GeoBulb IIs.

$1500 vs. $48. I love the GeoBulb technology - and LED light bulb technology in general - but it's going to have to come down in price to penetrate beyond the millionaire/billionaire demographic.

Hopefully, LED bulbs will get more affordable. Most technology seems to progress down an affordability curve. Only a few year ago, CFL bulbs were rather pricey too. Now they're easily affordable. Hopefully in a couple of years, we'll be seeing multipacks of GeoBulbs for a fraction of the current price.

Where to Buy:


If your recession-era budget doesn't have room for the GeoBulb II, remember that you can still get a Pharox 4-watt LED (40-watt incandescent equivalent) at Amazon for $34.99 or the EarthLED ZetaLux for $49.99 (6-7 watts of power consumption, 50-60 watt incandescent equivalent).

Monday, July 13, 2009

Energy alternatives article from Nature Magazine

Solar panels (photo by Kevin T. Houle)
Solar panels (photo by Kevin T. Houle)


We interrupt our regularly scheduled programming (24/7 reviews!) to recommend this interesting article from Nature on various methods of generating electricity without net carbon emissions.

I came away from the story with a renewed appreciation for the potential of solar power in particular. Consider this excerpt:
Earth receives about 100,000 TW of solar power at its surface — enough energy every hour to supply humanity's energy needs for a year. There are parts of the Sahara Desert, the Gobi Desert in central Asia, the Atacama in Peru or the Great Basin in the United States where a gigawatt of electricity could be generated using today's photovoltaic cells in an array 7 or 8 kilometres across. Theoretically, the world's entire primary energy needs could be served by less than a tenth of the area of the Sahara.

Exciting stuff! Let's get cracking on those giant solar arrays!! :)

Friday, July 10, 2009

cmarchuska eco-friendly fashion

Women's organic cotton and modal mseries t-shirt, part of the cmarchuska eco-friendly clothing line
Women's mseries t-shirt from cmarchuska 

Sometimes the simplest things are the best.

I like how Christine Marchuska put a little twist on basic styles with her eco-friendly cmarchuska clothing line to make them a little quirky and interesting, but still versatile and wearable.

For example, the cmarchuska mseries t-shirts have little epaulettes on the shoulder to set them apart from the zillions of other t-shirts out there.  The slim styling on the shirt is comfortable, but very fitted and flattering.

In terms of material, the short-sleeve mseries t-shirts use a 50/50 mix of organic cotton and modal, both of which are considered excellent eco-friendly fabric choices. The long-sleeve women's mseries shirt is made from 100% organic cotton.

Organic cotton is always great, but I have to admit I like the organic cotton/modal blend. The shirt came through my apartment building's industrial washer/dryer circle looking like new. Plus, there's something about the smoothness and softness of modal that makes it feel a bit different and special --just like those spiffy epaulettes. ;-)

FYI, much of the cmarchuska line is made right in New York City's Garment District, but the mseries t-shirts are made in China.

Where to Buy:

You can buy mseries t-shirts ($30-60) and other cmarchuska fashions direct through the designer's website. Some of the t-shirts are plain, while others carry the words "Vivons Vert" - French for "Let's live green!"

Wednesday, July 8, 2009

K2 Eco Skates

K2 Etu men's Eco Skate made with bamboo and recycled PET
K2 Etu men's Eco Skate made with bamboo and recycled PET

I've been talking a lot about the virtues of bikes and e-bikes lately, but I neglected to mention the virtues of other forms of zero-emission, human-powered transportation.

For example, here in New York City, I frequently see people getting around by skateboard and sometimes (especially kids) by kick-scooter too.

But there's another option for those with good balance and an interest in getting shapely, toned legs. I'm talking about in-line skating (a.k.a. blading or rollerblading).

This was a big craze back in the early 1990's (remember Prayer of the Rollerboys?). In 1996, one study estimated that 27 million Americans had become in-line skaters.

The sport has faded a bit since then. By 2007, the Sporting Goods Manufacturing Association was estimating the total U.S. in-line skating population at 10.8 million, with the number of 'core' skaters (defined rather leniently as those who skated at least once a month), dropping to just 4.7 million people.

I do think that most people consider in-line skating a sport or recreational activity rather than a bona-fide commuting/transportation option, but the fact is that experienced in-line skaters can probably expect to achieve average speeds of 10-12 miles per hour.

While quite a bit slower than an e-bike (top speed usually governed to 20 mph) and even slower than most regular bikes (13-15 mph average commuting speed according to some very unscientified London data), in-line skating does have its advantages over either biking option.

E-bikes require an electricity input to charge their batteries. In-line skates require no external inputs (other than human muscle power).

E-bikes and regular bikes are both weighty and bulky. Commuters who are unable to bring the bikes into their offices have to worry about where to park the bike and how to lock it. Theft is a concern. By contrast, in-line skates can be unlaced, brought into an office and left beneath a desk or in a drawer.

And of course it's much easier to skate from a home to a train station and then carry the skates onto the train versus trying to carry a bike onto a train.

That said, in-line skates are not without their drawbacks. I'm a real novice skater, but in my opinion, it's much easier to maintain balance on a bicycle than on skates. Stopping on a bike is much easier too (for me) -- and since stopping is a big part of accident avoidance, that makes me nervous about recommeding in-line skating to non-experts seeking to commute in high-traffic areas.

On the other hand, there's something incredibly liberating about inline skating. Bicycling has a certain rush that comes from propelling yourself faster than any unassisted human could run, but there's always the machine with its gears and pedals between you and the road. With blading, it's amazing how just some sturdy boots and a couple sets of little wheels can give you instant speed.

Whether you're considering in-line skating as a commuting or recreational activity, in either case you'd want to choose the most eco-friendly in-line skates.

While most skates are made of plastics and other synthetic materials, the new K2 Eco Skates - the Etu for men and the Maia for women - give you a great Green alternative.

Both skates have excellent eco credentials. Instead of using metal or plastic for the frames that hold the wheels, K2 has chosen to use renewable and biodegradable bamboo. These bamboo frames give the skates a beautiful, natural look. I almost felt like I was skating on a piece of art.

From a design standpoint, I also liked the way that K2 used a bamboo leaf motif on the strap, boot and frame.

(And in case you're worried about the strength of a bamboo skate, numerous sources point out that bamboo has a tensile strength greater than that of some types of steel.)

K2 has also taken steps to incorporate recycled materials into its Eco line, keeping trash out of landfills and supporting recycling efforts by using 100% recycled PET for the liners and laces of the Etu and Maia skates. The mesh on the skates is made from 50% recycled PET.

Thankfully, K2 says all its Eco skates are PVC-free.

I had a chance to test the Etu skate in person. I was happy to find that K2 had used minimal packaging - just a bit of tissue paper around the skates and some recyclable cardboard and paper inside the skates themselves to help them keep their shape. The box itself was labeled as being made of 70% recycled material and printed with eco-friendly soy-based inks.

Fit and finish on the K2 boots is quite good. I was a little disappointed to see that the boots were made in China -- although I suppose that's a good place to find bamboo. But it would have been nice from an eco standpoint if the skate had not been shipped half-way around the world.

The boots feel stable and well-made. I was able to skate comfortably and smoothly on the 84 mm wheels with ILQ-7 bearings (highly regarded on at least one forum).

I'm impressed that K2 says it is working toward a recycling/take-back program for its eco skates. Meanwhile, the company has developed a short DIY tutorial on how consumers can recycle or re-use components from their skates.

Incidentally, the DIY tutorial is part of a very nice section of K2's website that offers lots of information on steps the company is taking to reduce its 'carbon skateprint'. Lots of companies could learn from K2 in communicating the steps they are taking to go green.

Bottom line - An average human walking speed is just under 3 miles per hour (4.8 km per hour). In-line skating provides a zero-emission, relatively low-cost, eco-friendly way of tripling or quadrupling unassisted travel speed. The bamboo and recycled components of the K2 Etu and Maia skates seem to make them the best eco-friendly options in the category. Even better, the Eco stakes also seem appealing from a style and quality standpoint.

Where to buy:

You can purchase both the women's Maia skates and men's Etu skates at InlineSkates.net for $189.95 with free shipping.

Remember that most inline skaters fall from time to time -- especially if you're just getting started learning the sport. Skating and bicycling have many eco-advantages over driving a car, but unlike in a car, you won't have any seatbelt or airbags to protect you in the event of a crash. Therefore, it makes sense to use caution and wear the right safety gear. That's why I strongly recommend that all inline skates protect themselves as much as possible by wearing a helmet plus appropriate pads and wrist guards.

K2 has introduced matching sets of eco-friendly Etu pads and Maia pads ($33.74 each via InlineSkates.net) that incorporate recycled PET materials.

Friday, July 3, 2009

A2B Electric Two-Wheeler

The A2B electric two-wheeler by Ultra Motor
The A2B electric two-wheeler by Ultra Motor


Happy (almost) Independence Day!

Wouldn't it be great if more of us could break free from a dependence on gasoline and cars to get us where we want to go?

As I've mentioned before, I believe that bikes and particularly e-bikes are a big part of the solution. Previously, I had a chance to test an e-bike in Tokyo. Then just last week, Ultra Motor gave me the chance to test ride their A2B electric bike around New York City.

(Special thanks also go to Vespa SoHo, the store that actually sells the A2B in Manhattan and let me take one of their A2Bs out for a spin.)

First things first, how did A2B get its name? I assumed it was because the bike provided an awesome way to get from point A to point B. Logical, but incorrect according to Daniel R. Gonzalez, sales manager at Vespa Soho. Gonzalez says that the bike actually got its name thanks to capacity to carry dual batteries. The built-in "A" battery can carry a ride for up to 20 miles (without assistance from pedal power) at up to 20 mph. Naturally, that maximum range depends on terrain - expect to go further in flat Miami than in hilly San Francisco. If the "A" battery does run out of juice and if you've purchased a spare "B" battery, you can simply flip a switch from A to B and get another 20 miles or so of range from the backup battery.

Batteries apparently take 3.5 to 4 hours to fully recharge, so theoretically you could commute to work on A2B on a Friday morning, leave the bike charging and then commute home to get a head start on the weekend right after lunch.

Here are some more thoughts on the A2B -

Aesthetics - Vespa Soho's Gonzalez pointed out that lots of other e-bikes just look like ordinary bicycles with a (visible) battery attached. By contrast, A2B was designed especially to be an electric bike. The battery is hidden from view and built into the bike's frame. Gonzalez did assure me that it is easy to swap out the battery for a new one at the end of the original battery's lifetime.

Basically, the A2B looks sweet, minimalist and futuristic. It's the kind of bike that will get noticed. Don't be surprised if you meet a lot of people - pedestrians, car drivers and other cyclists - wanting to know what you're riding. People may stare and you'll probably get a few compliments. In fact, single gals and guys looking to meet Mr/Ms Right (or even Mr/Ms Right Now) might want to buy an A2B just for the conversation-starting benefits.

By the way, although Ultra Motor is based in the U.K., its design team is from Germany. Indeed, there is something about the look of the A2B that reminds me of the sleek work of Porsche Design.

The Ride - A2B does have pedals and can move just under pedal-power, but I don't see anything on the Ultra Motor website calling this machine an e-bike. In fact, Ultra Motor likes to describe A2B as an "electric two-wheeler". This is actually a pretty apt description. The A2B's twist throttle system lets you ride around town without ever actually pedaling your legs. It's kind of a stealth electric scooter, albeit one that only goes up to 20 mph.

The top mph rating is important because, according to Gonzalez, anyone can ride a vehicle that only goes up to 20 mph. You don't even need a driver's license (at least in NY State...not sure if the same laws apply everywhere). By contrast, scooters tend to go up to 30 mph and require a driver's license. Anything over that in terms of top speed and you'll need a special motorcycle license.

The A2B electric two-wheeler by Ultra Motor
The A2B electric two-wheeler by Ultra Motor

Anyway, in a word, the ride is awesome. The shock-absorbing front and rear suspension eats up bumps like the Cookie Monster chowing down on a Gingerbread Man. The 36-volt lithium ion battery propels the e-bike away from red lights in a hurry. Disc brakes let you stop on a dime - important when NYC taxi cabs are cutting in front of you to pick up passengers. Frankly, the A2B put a big happy grin on my face for most of my test ride (except when I was dodging trucks and airborne trash on Canal Street).

Now, the A2B may be a beautiful machine, but that doesn't mean that it's faultless. In the spirit of constructive criticism, I'd like to offer the following observations on Things That Might Be Improved in version 2.0:

Weight - The A2B is solid and comfy, but it ain't dainty. The bike weighs more than 70 lbs. Which means that even with a 7-speed Shimano derailleur, you'll still huff and puff trying to propel the bike by pedal power. Since the A2B looks like a bike and has a controlled 20 mph top speed, you can apparently take it on bike paths and into parks, but I still think it works best as a stealth cruiser with a little pedaling from time to time on flat ground to get exercise or save battery power. For comparison's sake, this Elegance e-bike from EcoBike weighs only around 50 lbs. Those 20 lbs can make a big difference. In fact, it's even more impressive that the A2B's motor can move the heavy bike so quickly. Gonzalez says that 1/3 of the A2B's weight is in its battery, so hopefully that part of the weight will come down as battery technology improves. Since the rest of A2B is already made out of aluminum, it's not clear how the bike could get lighter without sacrificing some of its impressive stability and shock-absorbing power.

Battery indicator - A2B does have a three-light battery indicator in green, yellow and red, but I would have liked something a bit clearer that looked more like a gas gauge. Call me old-fashioned.

Twist direction - I like the twist throttle, but I believe you have to twist it toward you in order to accelerate. It seems like it would be more intuitive to twist away and there were several times that I tried twisting away the throttle forward only to wonder why I wasn't getting any oomph. But perhaps I'm ignorant of some universal code of twist-throttling that says throttles must be turned inward and toward the rider.

Bell - OK, some people might say this is silly, but I would have loved to see a bell incorporated into the design. Like any bike or e-bike, the A2B is quiet. A bell would help warn pedestrians and other bicyclists that you're about to overtake them and zoom by at an astonishingly fast speed without any apparent effort. :)

Price - The A2B currently carries an MSRP of around $2,699. When considering cost of ownership, you'll have to think about the battery too. The Ultra Motor warranty guarantees the battery will function for more than 500 cycles at 80% of original capacity. That sounds decent, but given the cost of batteries ($550 to replace the internal battery, $650 for the optional auxiliary battery), I hope that Ultra Motor can guarantee more charge cycles from its batteries in the future - or make the battery cheaper to replace.

$3000+ is a lot to spend on an e-bike when there are plenty of sub-$1000 alternatives. But...sometimes you get what you pay for. A2B is a high-quality machine that looks and rides like it is meant to last. If comfort, design and speed matter to you - and if you're OK with the weight issue - A2B seems like it is definitely worth the money. You'll still save a huge bundle compared to car ownership and you can relish riding one of the top e-bikes (OK, electric two-wheelers) in the country.

Where to Buy:


A spokesperson for A2B also told me that Best Buy will start carrying the A2B soon. Looks like Best Buy is solidifying its position as an e-bike leader...

An Ultra Motor spokesperson says that the company offers useful accessories such as front baskets and laptop bags. It would be nice if visitors to the A2B site could browse a selection of these accessories.