By SVM | Published:
July 17, 2009
This month, GreenTechMedia highlighted obsolete greentech concepts that are making a go of it…again.
In this really cool list, GreenTechMedia features sixteen ideas that are centuries old, but are experiencing a re-birth in today’s green technology startups. The old-school concepts include:
1. Mashed Earth (www.integrityblock.com)
2. Solar-Thermal Water Heaters (www.mondial-energy.com )
3. Solar Lighting (www.sunlight-direct.com )
4. The Opposed Piston/Opposed Cylinder Engine (www.achatespower.com , [...]
By SVM | Published:
June 5, 2009
Waltham Technologies Inc. was launched by biotech industry veteran Una Ryan with the aim of using blue-green algae to treat wastewater. A number of other clean energy companies are also using algae to dispose of carbon dioxide and other greenhouse gases, but Waltham Technologies’ system not only cleans wastewater of contaminants, it creates a [...]
By SVM | Published:
May 26, 2009
A renewable energy startup out of Florida is developing a unique biofuel that will be more than just carbon neutral – it may even be carbon negative. The company, called PetroAlgae, is commercializing a technology that can produce petroleum from algae. Algae are not just clean and sustainable; they are also capable of consuming twice [...]
By SVM | Published:
May 20, 2009
Is it a car? A golf cart? A people conveyer? In fact, this eco-friendly biodiesel vehicle may be the future mode of transportation for city dwellers. Developed by a team of 28 students from the Rhode Island School of Design and Brown University, the Coda (its name refers to a musical term meaning “to go [...]
Renewable energy company Genifuel Corporation today announced a license from Pacific Northwest National Labs for a process to turn algae into natural gas. The company began as an algae biodiesel company, but discovered that making liquid fuel wasn’t feasible, given the problems presented by genetic modification requirements, leftover biomass, and the arduous water separation process. [...]
As a biofuel, the advantages of coffee over alternative biofuels are numerous: it does not diverting crops from being a food source because it’s made from the left over coffee grounds. it’s consistently available globally, it can easily yield 10-15% of biodiesel by weight, it requires little or no tinkering because it has lower viscosity, [...]
Everyone’s heard the buzz about finding “greener” ways to provide sustainable energy but, with most sustainable technologies still far from being feasible on a large scale, an unlikely source may be the key to a greener tomorrow – bacteria.
According to Colin Barras at NewScientist, bacteria may hold the key to developing technologies that significantly reduce our [...]