Posts Tagged ‘renewable’

Learn from the Swedes

June 21st, 2009

I just came back from a trip to Sweden (and Denmark) and I was very surprised with what I saw. It was my first time in Scandinavia and I never realised that they are way ahead then the rest of Europe when it comes to taking care of the environment.

My first hint was the cycle lanes. Their cycle lanes are well integrated with the road system, clearly not an afterthought like the ones in London. Not only that but they did not attempt to do something so stupid as to put the cycles in the bus lane. In most cases cyclists share the sidewalk with pedestrians, with clear painted lines and signs showing who gets which part. In Kristianstad, where I was, it seemed like everyone cycled. Cycling is the choice of transport unless you have to carry something or you are going a far way.If you decide to take the bus, then you will be on a biogas burning vehicle. The busses are painted green and make sure that everyone getting on them knows that they use biogas.

Recycling is another big thing in Sweden, you seperate everything and then throw it away accordingly. Driving around proved that the Swedes d not have the same problem British people have with wind turbines. They are scattered all over the place. The lower parts are painted in shades of green in an attempt to blend in with the scenery, but overall they just look natural there. They fit in fine, and no one seems to mind.

It seems that the Swedes have found a way to live more in harmony with nature than most of us do. We should definetly be looking at Scandanavia to learn. What makes it really clear how enviornmentally aware they are is that your fast food meal does not only come labeled with how many claoris and how many grams of fat it contains, but how much CO2e was emitted in making it.

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DESERTEC – A concept for the future

December 28th, 2008

Desertec (http://www.desertec.org/) is a very interesting and simple concept. It can play a large part in the future of energy and can provide a solution for today’s problems.

The idea is simple, take the Middle East, North Africa and Europe. Put renewable power plants in all of them, each depending on what resource they have, and connect them all together with high voltage DC transmission lines.

The Middle East and north Africa have a lot of desert, and deserts have a lot of sun, and the sun has a lot of energy. Now let’s put many of those solar thermal power plants (Wikipedia) in the dessert and we are generating a lot of electricity out of the desert. Land that’s barely used and I doubt anyone would be missing it. The land area available is also massive and taking Egypt as an example, we can find 300 Watts per square metre coming out of the sky, and there is rarely a cloud to be seen.

So what about Europe? The western coast of Europe has substantial wind power. A country like the UK is the windiest in Europe. Spain also has substantial solar capabilities. There are some geothermal sources scattered across Europe as well.

So now we have the deserts with their solar power, the western european coast with wind and geothermal scattered all over. Connect all those together and you have a super grid of renewables. So what’s the point of connecting them all together and sending the electricity over thousands of kilometers?

Well, renewables are intermittent, the sun is not always as powerful and the wind is not always as strong. So if we connect all those renewables there is a chance that when the wind is not as strong as we want it to be in Europe, the sun will be a bit more powerful in the Middle East. And the more sources we connect the better chance we have of meeting our collective needs for electricity.

Another reason is that while most of the electricity is expected to be generated in the deserts, most of the consumption will not be there. Europe, being far more developed than North Africa, means that they will require more electricity. However North Africa would have an abundance of electricity that it will be willing to sell to Europe.

So now this seems to be working well for everyone on many different levels. The whole world will emitt less pollutants as we use more renewables. Europe will then be on its way to achieve the targets it has set itself as well as the kyoto targets it needs to acheieve in emissions. North Africa and the Middle East will be making money out of the deserts and will have clean electricity to fuel their development. Energy securty will be highly improved as we add more sources and connect them all together. Europe will be importing its electricity from many more sources than today and shouldn’t be as worried about political instability.

So overall, it seems like a good idea. What do you think?

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