Green Options

A new energy fund in the UK is looking to improve wave and tidal energy technologies and help put them into use. The new Marine Renewables Proving Fund contains about $36 million worth of new grants.

Since its humble beginnings in the 19th century, the sparkplug has been a mainstay of the combustion engine.

Some engineers at Ford, in collaboration with Liverpool University researchers have decided to modernize spark plug technology. Since we’re in the 21st century, that replacement is going to be lasers.

Yes, I said lasers.

Great Britain hopes that algae-based biofuels can reduce automotive and aviation emissions by 2030, and cut overall emissions by 80% by 2050.

While food-based biofuels are taking the heat for rising food prices, other solutions - like algae - are gaining a more serious following. For example, the UK’s Carbon Trust has announced plans for a project to make algae bio-fuels a commercial reality by the year 2020

But the situation is much more than some “food vs fuel” finger pointing. The fact that transport accounts for one-quarter of the UK’s carbon emissions is major driving factor - pun intended: it’s also the fastest growing cause of carbon emissions in the UK. If the government’s target to reduce overall emissions by 80% by 2050 is to be met, then initiatives like this are crucial.

A new study put out by the UK’s Carbon Trust reports that domestic windmills in urban locations are actually net carbon emitters, as more energy goes into their production, shipping, and maintenance than is saved by their use.

Additionally, the study notes that home wind power could only provide .4% of UK electricity consumption and will only save .6 million tons of carbon dioxide. For reference, the Carbon Trust says that 1.5 TWh could be produced annually using urban windmills—and the UK used 2,700 TWh of energy in 2006.

The reason why urban windmills aren’t useful is fairly simple. The Carbon Trust explains that small wind turbines require open, exposed locations that have high wind speeds. These locations are usually found in rural areas, which can produce nine times more wind energy than urban areas. Since the output from urban windmills is low, the cost of the resulting energy ends up being high.