Tag Archives: renewable energy sources

Onshore UK Wind Generation Increases Dramatically

UK wind generation on the increase? It’s a breeze!

According to recent findings, things are looking positive for the UK renewable energy sector. It has been reported by the Department of Energy and Climate Change (DECC) that in the first quarter of 2012, energy generated from onshore wind turbines reached a significant 3.6 TWh (Terawatt Hours), compared to just 2.4 TWh in the last three months of 2011.

There have also been large increases in offshore wind generation, which was boosted by 50%, and hydro generation, which had risen by 43% – because of unusually high winter rainfall levels.

“Today’s statistics show a clear increase on the first quarter of last year across all renewables – with rises in wind, hydro, solar and bioenergy generation.” Stated Charles Hendry, Energy Minister, “Alongside a 36% increase in renewables capacity in the last 12 months, this shows that the UK is powering forward on clean and secure energy and is clearly a very attractive place to invest.”

However, there is still a long way to go in the fight to get a larger portion of the UK’s total energy supply to be obtained from renewable resources. According to the first quarter of 2012, renewables represent 3.8% of the total UK energy supply – again an increase from 3.2% in 2010 – but still a relatively small number in comparison to non-renewables. Although with that said, there have been decreases in certain fossil fuel consumptions – with gas now representing only 27% (at a 14-year low point), and nuclear generation is down to 17%.

So maybe not quite a ‘breeze’, but things are looking positive for renewables, and certainly going in the right direction.

 

Smart alternative energy sources

The whole world is looking for alternative energy sources since traditional sources are getting exhausted, are polluting the world, or for other reasons. The world is already using renewable energy sources like solar panels,  wind turbines and biofuels.  These are becoming more and more popular and so widely used that they can’t be called alternative sources anymore. And what we want to talk about now are some truly alternative fuels that are being developed. The following technologies show some promises for the future as renewable energy sources but it must be said that most of them aren’t ready yet for commercial use.

How efficient would it be if human energy can be used to power personal devices. That’s where a lot of research is going to for the moment. There already are some inventions that allow you to create energy just by wearing something. For example a knee brace that can convert the kinetic energy of the moving leg into useable electricity. Or a backpack that can create energy from the motion of walking. And a very good example of a smart, new technology is the newly built Westfield Stratford City Mall that’s built for the London Olympics. The paving stones of this mall absorb kinetic energy from peoples footsteps and can create energy out of this.

Some other energy sources that are being developed are small generators that can create electricity from viruses or a t-shirt battery which will be able to store enough energy to power small electronic devices. But all these technologies are still in the early stages of development. So it will probably take years before they can be used in a large scale. However, there are some alternative electricity generating systems that are already, or almost in production.

An example is hydrogen, which has been considered a potential energy source from sometime now. Another great example is a robotic jellyfish, created by scientists at Virginia Tec. This robotic jellyfish can take hydrogen from the water to create the power it needs. So this effectively gives it an unlimited power source. Researchers at Harvard also recently created a hydrogen fuel cell which can create energy from hydrogen and store it like a battery. The prototype can now store about three and a half minutes worth of power but the researchers have the next couple of years to think about ways to increase this.