
Green, Greener, Greenest! Even in the production of biofuel you got companies who are even greener than others. Usually biofuel comes from animals or plants, so how green is biofuel?

Minesto is developing so called ‘Deep Green’ technology or underwater kites which are tethered to the ocean floor. These underwater kites could produce continuous energy from tidal flows. According to the company a single Deep Green turbine could produce up to 500 KW of electricity. And because tides are much more regular than winds, the energy produced would be less variable.

Potter Drilling has, with the help of internet giant Google, developed a new way of drilling. It works as a jet engine and it breaks the rocks with hot water. The technological breakthrough can be significant for further developments in geothermal energy extraction. The company who developed the drill got a 4 million dollar cheque from Google.org to develop this new technology.

A report from the Danish Energy Association states that wind energy is set to be the big technological winner in Europe over the next 10 years. As the EU countries getting more serious of meeting the EU renewable energy targets of 20% renewable energy by the year 2020, wind energy is set to be a bigger contributor to the green energy mix than solar and hydro power combined.

Solar panel installer Energieker and lithium battery supplier M2 Power introduce a system where customers are not dependent on the local grid anymore. The solution is based on an innovative configuration and is being tested at the New Energy Docks in Amsterdam. A PowerRouter connects the panels on the rooftop of the New Energy Docks with the lithium batteries (LiFePO4) and the 230V grid. This is the first of its kind in the Netherlands where the PowerRouter is being used in such a manner.

Last month the La Florida plant was completed in Spain. With this plant the nation’s solar power production is now comparable to the output of a nuclear power station. The La Florida plant is also the largest solar power station in the world, and with this plant, Spain overtakes the US as the biggest solar generator in the world.

As we all know concentrated solar energy is the most commonly used renewable energy for electrical power generation. Now, a Colorado company, called Sundrop Fuels, has a new approach to the production of biofuel. The company combines the mirrors and tower of concentrated solar power with the process for the production of bio-based fuels.