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A million Prius hybrids hit the road; spreadable, self-powered Organic Light Emitting Diodes; and a high school science project raises new hope for storing solar power. The weekend is in sight: welcome to the Friday edition of The Daily Five.

Toyota has sold over a million Prius sedans worldwide: Toyota announced a milestone yesterday — they’ve sold their millionth Prius hybrid. They’re actually about 28,000 north of that number, the vast majority of which is represented by the company’s second generation Prius, which went on sale in 2003. Generation three is scheduled to be introduced at next January’s Detroit Auto Show, and Prius #2,000,000 is probably not too far in the future. (Autoblog Green)

Airbus and Algae: Why Biofuels Won’t Cut It: A gloomy reality check on the future of algae-based aviation biofuel from the WSJ. Airbus and Honeywell went public this week with their plans to to meet a third of the airline industry’s needs with second generation biofuels by 2030. The problem is this: despite Airbus’s promise. at air travel’s current rate of annual growth, we’ll still need eight million more barrels of conventional jet fuel each day than we are currently using. (WSJ.com)

Today is Bike to Work Day. While some cities and companies will actually be observing the event Friday, thousands of people grabbed their helmets this morning and put two tires on the pavement.

Bikes are old school CleanTech. Once a novelty of the Industrial Revolution, bicycles now supply millions of people with efficient, healthy, pollution-free daily transportation. Bicycles can reduce traffic congestion and noise. You can park a dozen bikes in the space of a single automobile, and the idea of a morning commute free of fossil fuels seems particularly attractive in the face of rising fuel costs.

Even if you only cycle once a week — on Casual Fridays, perhaps — you’ll be reducing your weekly commute’s environment by 20 percent. That’s about the same as trading your current vehicle for a hybrid, and a lot cheaper.

Yes, you’ll sweat. No, you won’t smell like a horse around the office. Yes, you can really do this. You’ll be healthier and a little richer for the experience.

But commuting by bicycle takes planning. Let’s get started!

Make it work at the office

There’s an old saying that a journey starts with a single step. With bicycle commuting, though, your journey begins with deciding what happens once you arrive.

The Solio Classic Hybrid Charger is affordable, convenient and above all, looks extraordinarily cool. I ensure this gorgeous green gadget will draw attention like a puppy on a hot summer day. Solio is your power source on the go for all the other gadgets in your life.

Storing power from the sun or outlet, the Solio can charge your cell phone or iPod at about that same rate as a wall socket and have around 10 hours of power stored for multiple charges. It’s compatible with many portable devices and generates free and clean energy immediately, anywhere, anytime.

The Solio costs around $100, not bad for replacing your car charger and reducing your ecological footprint. Want more? Upgrade to the Solio Magnesium Edition, that has twice the power and also twice the cost.

Solio key features:

• High capacity internal battery stores energy for up to a year
• Adapter Tip System reduces waste and increases compatibility
• Rechargeable from the wall or the sun
• One hour of sun = 15 mins talk time or 40 mins of MP3 music
• Durable and weather resistant
• Elegant, ergonomic design
• Light weight and easy to use
• One Year Warranty

Check out it out at Solio.com, after all it may come in handy if your stranded on an island paradise…for your iPod that is (my cell phone would swim with the fishes).

The Chevy Volt shapes up in early testing; ethanol subsidies are on the chopping block in Washington; and in windpower generation, maybe size doesn’t matter. Welcome to the Thursday edition of The Daily Five:

Volt mules are meeting EV-only target range: Just yesterday, we were reporting speculation that pressure on the U.S. carmaker industry might spell trouble for expensive new projects like the Chevy Volt. But some good news Wednesday from GM Vice Chairman Bob Lutz: prototype Volts are hitting their electric-only 40 mile range targets. That means many drivers will motor their Volts around without the backup gas engine ever kicking into gear. Lutz also set the firmest target date yet for the Volt’s debut: November, 2010. (Autoblog Green)

Farm bill reduces support for corn ethanol: The picture gets dimmer for corm-based ethanol. A $300 billion farm bill working its way through the U.S. Congress cuts ethanol subsidies by 12 percent. Biofuels are being blamed for deforestation and a spike in food prices. The bill is expected to head to the President for signature next week. (Nature)