Picturesque test site - EMEC, Billia Croo, Orkney

The waters between the north of Scotland and the Orkney islands have just been declared a Marine Energy Park. What does that mean? Well, I’m just back from a visit to the mainland coast in the Caithness region, Orkney and Edinburgh, headquarters of the Scottish government and the leading marine energy companies, where I was able to see for myself. The steady waves and strong currents of these waters make it an ideal location for devices to turn the power of the sea into electricity. I can quite understand why the Scottish and the UK governments want to heighten the international reputation of the region as a potential provider of clean, climate-friendly energy and speed up the development.   Orkney is home to EMEC, the world-leading European marine Energy Centre, where developers from all over the world are testing a wide range of wave and tidal energy devices. The centre even has a grid connection, so that energy produced in the water can be fed in.

Aquamarine's Oyster device is one of those being tested at EMEC

I will be writing more about this on DW’s Environment site in the weeks to come.  I’ll also be reporting for our radio programe Living Planet. I certainly got the feeling that some of the marine energy devices are ready to move on from the test stage to commercial application and viability in the next couple of years.

Energy from waves or tides has the potential to generate 27GW of power in the UK alone by 2050, equivalent to the power generated from eight coal fired power stations, according to the UK government.  Minister of State for Energy and Climate Change Greg Barker says the industry could sustain thousands of jobs in a sector worth a possible £15bn to the economy by 2050.

The Scottish Energy,  Enterprise and Tourism Minister Fergus Ewing was equally upbeat when I interviewed him last week. More from the Minister and those directly involved in marine energy in the not-too-distant future. Meanwhile, well done Scotland for pushing ahead with renewable energy and “surfing the waves”  towards the ambitious – but not unrealistic- target of 100% renewable electricity by 2020.

Harbours like Wick in the far north of Scotland have to expand to service marine energy and offshore wind

The Greenland ice sheet, photographed 2009

Apologies for a lack of new posts over the last week. The ice blogger was offline “up north”, not quite in the Arctic, but on the Orkney isles, where pioneering companies are testing devices to turn the power of the sea into climate-friendly electricity. But more about that at a later stage.

The worrying news about Greenland and the Arctic has jumped to the top of the ice blog agenda. NASA images of the Greenland ice sheet have indicated that for a few days this month almost the entire surface of the “ice island” was melting. A giant iceberg also broke off the Petermann Glacier in Greenland.

This is part of an overall development in the Arctic, where the summer has been unusually warm. The US National Snow and Ice Data Center (NSIDC) says a large portion of the sea route between Western Europe and the Pacific has as little ice as it would normally have at the END of the summer melt.

This type of widespread surface melting is not unprecedented, according to the NSIDC.It might happen around every 150 years in Greenland. But the difference is that previous events of this sort happened around 7,000 years ago when the sun was tilted in such a way that it sent more sunshine to extreme northern latitudes. This time, there is no solar tilt to explain the melt.

Mark Serreze, director and senior research scientist at the NSIDC says Arctic sea ice is also at the extreme low end of the satellite record for this time on year and could be on track to equal the 2007 record, when the Arctic ice reached its smallest size in the satellite record. The sea ice is in a “sorry state”, he says, with holes appearing in satellite images much like a Swiss cheese. What next?

My colleague Gero Rueter chairing the panel, here with Syliva Pilarsky-Grosch, vice-president of the German Bundesverband WindEnergie and Ulrich Kelber, member of the Bundestag and SPD expert on environment and energy issues.

The World Wind Energy Conference started in Bonn today, focusing attention on the role of decentralized wind power. It’s an interesting topic at this particular time with a big debate going on here in Germany over the role large offshore wind parks should play in securing a renewable energy supply. At a kick-off panel discussion organised last night by the Friedrich Ebert Foundation and the World Wind Energy Association, one of the main conference organisers, the speakers provided plenty of arguments in favour of smaller, decentralized systems with different ownership models, from citizens’ groups to local authorities, rather than large offshore parks run by big industry. At today’s official opening ceremony in the Bonn Conference Centre, a federal government representative, Secretary of State in the Environment Ministry Jürgen Becker, made the case for having both. The main problem with the big offshore parks at the moment is how to successfully connect them to the grid and get the power from Germany’s North Sea coast to where it’s needed farther south. Interesting discussions ahead. There are large delegations from China and Canada attending the conference, countries with a key interest in wind power. I bumped into a colleague from Japan this morning, who said he was covering the conference because of the urgent need to develop renewables in Japan after Fukushima.