Transportation

Sugar or sunlight?

That's one of the fundamental questions for companies trying to transform algae into transportation fuel or dietary supplements. Solazyme says it will grow algae through fermentation--for instance, feeding the algae sugars in a heated, sealed environment.

"We're not growing it photosynthetically. We put it in stainless steel tanks similar to what you see in a brew pub," said Solazyme President Harrison Dillon.

By contrast, GreenFuel Technologies and LiveFuels will exploit the sun to grow the single-celled creatures. And here there is a divide, too. GreenFuel grows its algae in sealed, transparent tubes … Read more

By 2010, Wal-Mart and its suppliers are going to be a lot more energy efficient.

The retailing giant has set a goal of getting suppliers to increase the energy efficiency of its products by 25 percent in three years. For some suppliers, the standards are a little more stringent. By 2010, the company will only sell Energy Star-rated air conditioners. Flat panel TVs will have to be 30 percent more energy efficient than they are now.

"If we achieved our 25 percent goal just in the U.S. we would save enough electricity to power 3 million homes per … Read more

The engineers at Tesla Motors have designed a new single-speed transmission for its sports car that will let it hit the promised zero to 60 mph in four seconds.

The transmission won't come out on the first Tesla Roadsters coming off the line, the company said in a press release. Those early production cars will have a two-speed transmission that will only let the car get to 60 mph in 5.7 seconds. Problems with the transmission were part of the reason the company delayed the cars from the middle of last year until now. Some modifications to the … Read more

January is diesel engine month, it seems.

Following announcements from EcoMotors and Transonic Combustion, San Diego's Achates Power has said on its Web site that it's creating a clean, light, fuel-efficient diesel engine.

The company has also received investments from Sequoia Capital, a relative newcomer to energy investments, Rockport Capital Partners and Interwest Partners. (VentureWire has a brief interview with Achates CEO James Lemke.)

Achates has not said how its engine will work, the company has three patent applications on file with the U.S. Patent Office. Two of the patents describe what's known as an opposed … Read more

As we told you last September, BMW has been kicking around the idea of a fourth brand (in addition to MINI, Rolls Royce, and BMW) for a while. This week it emerges that this new addition to the Bimmer family lineup may be a dedicated "green" line of vehicles focused on high fuel economy and lower emissions. If so, the strategy would certainly make sense as it will enable BMW to meet tough environmental requirements without sacrificing too much of its performance-related DNA. BMW is one of a number of premium European brands likely to suffer most at … Read more

If plug-in hybrid cars become popular, the cars could potentially reduce greenhouse gas emissions and dependence on foreign oil. But will they cause electricity prices to zoom?

Scientists at the Pacific Northwest National Labs are trying to figure out that right now, according to staff scientist Michael Kintner-Meyer in an interview. PNNL hopes to issue a report this summer that will help answer that question.

Last year, PNNL studied how well the grid, as it exists today, could accommodate an influx of plug-in hybrids. (Unlike a conventional Prius hybrid, plug-ins can be charged from a wall socket. General Motors, Toyota … Read more

Correction 10:35 a.m. PST: This blog initially misidentified the prime minister of Israel. He is Ehud Olmert. It also misidentified the person whose speech can be found on the Project Better Place Web site--it is by Shai Agassi--and as such an earlier version of this post also incorrectly attributed a quote from that speech.

Renault-Nissan, the government of Israel, and an electric charging station start-up founded by Shai Agassi are mounting an effort to make electric cars part of ordinary life in Israel in the next decade.

Project Better Place, Agassi's organization, will try to build 500,… Read more

It's sort of like an organ transplant for cars.

Transonic Combustion, which has been relatively secretive until now, has created a fuel injection system that will let diesel engines run on regular gasoline. Diesel engines get better mileage than regular gas engines, explained CEO Mike Cheiky in an interview. However, diesels typically emit more particulates. Gas is also far more readily available than diesel in the U.S. Insert Transonic's components into a diesel engine and you get the best of both worlds.

Additionally, the company's fuel injection system dramatically increases the internal compression in an engine, … Read more

The biodiesel industry in Germany is nearing a state of collapse because of a tax increase that kicked in at the first of the year, according to a report on Reuters.

Biodiesel refiners in Germany are only producing at 10 percent capacity, according to the Reuters story from a European biodiesel conference. That's down from 20 percent the year before. Because of the downturn, some biodiesel manufacturers are taking apart their factories and selling the equipment to manufacturers in the U.S. and Canada.

The problem? Like solar energy, biofuels still largely depend upon government support and subsidies. Biodiesel … Read more