Reykjavík Grapevine - 20.05.2016, Blaðsíða 12

Reykjavík Grapevine - 20.05.2016, Blaðsíða 12
about the domestic need for more "green electricity?” Who gets what is there to get? Foreign companies, re- quiring hundreds of megawatts for their activities, wait in line to start operating in Iceland. A growing popu- lation and domestic industrial devel- opment will require at least 600 mw by 2050. Plans for transitioning from imported fossil fuels to fuels produced in Iceland—like alcohol, methane, biodiesel and hydrogen—have been debated, and large-scale greenhouse food production is also on the agenda. All these industries probably need a few hundred additional megawatts. This means that Iceland has to retain at least 1,500-2,000 mw for its own use, as of today, until 2050. One of the arguments for a sea cable is the fact that there are currently some 200-300 stray megawatts available in the electrical power sector. A few ad- ditional power plants would then add what is needed as a minimum for an underwater cable. But looking at the future domestic consumption assess- ments, it is hard to guess where some 500-1,000 mw could be found for the UK. Drilling deeper However, new development could change Icelandic energy capabilities and maybe facilitate a sea cable in the far future. The international Iceland Deep Drilling Project aims to find out if steam at super-critical conditions exists at a depth of 4-6 km. Theoreti- cally, if harnessed, a superhot steam well would produce five to ten times the amount of energy of the wells which currently exist. Two IDDP test boreholes have failed (except as re- search). A third borehole is soon to be drilled. Until then, controllable "mega-wells" only exist on paper. Two recent windmills (each producing about 1 mw) provide interesting data. Wind parks, producing a few hundred megawatts, could be operating within the next decade or two, but will not radically change the energy scene. However, if one or more of Iceland’s metal-processing plants were to close down, it would free up hundreds of megawatts. The feasibility calculations of a sea cable between Iceland and the UK, and the research into formal and legal matters, as well as what positive and negative aspects interconnection to the mainland grid would have in Ice- land, are interesting. However, Iceland does not have the capability to make a real difference for electrical energy consumption in the UK and will not, for quite many years to come, have enough available energy to sell abroad. Besides, if the connection to the conti- nental grid causes electricity prices to rise in Iceland, it would have a highly negative influence on the attitude to- wards the project. The Reykjavík Grapevine Issue 6 — 2016 12 Ever tasted fresh scallops straight from the sea? If not, "VikingSushi Adventure" is the right boat tour for you. Seafood doesn’t come any fresher than this! www.seatours.is tel. +354 433 2254 BOOK ONLINE AND SAVE 10% FAMILY DISCOUNT A bird & nature watching tour for the whole family all year round THE VIKINGSUSHI ADVENTURE TOUR Ever tasted fresh scallops straight from the sea? If not, "VikingSushi Adventure" is the right boat tour for you. Seafood doesn’t come any fresher than this! The presidential race continues to fly down the tracks on the roll- ercoaster of the ab- surd, as Morgunblaðið co-editor and presidential hopeful Davíð Oddsson recently attempted to sell himself to the general public as the most cost- effective candidate, by saying that he would simply refuse the presidential salary, and thereby we would “get him for free.” Never mind that he’s already costing us money anyway, in the form of one of the highest pensions paid out to a former employee of the state. Also never mind that by law, a government official actually cannot refuse to be paid. That’s what Davíð’s going with. For now, anyway—still a long way to Election Day, on June 25. They say change is slow to happen in Iceland, and while this may be true, this change most times comes in de- cidedly progressive measures. Over the past year, the City of Reykjavík has been experimenting with short- ening the full-time work week, by testing out 35 hours per week instead of 40 at some select city workplaces. The result? Greater productivity, fewer sick days, and more general worker happiness. Not entirely unsurprising, as similar experiments elsewhere in the world have yielded similar results. And with Icelanders working lon- ger hours than most of their Nordic counterparts, the whole country may soon breathe a sigh of relief and kick up their heels an extra five hours per week. Let the good times roll! NEWS IN BRIEF Over and over again, news reports highlight the possibility of an under- sea cable, connecting Icelandic power plants to the UK grid. This expen- sive device would transmit 500-1,000 megawatts, enough to supply a single large city with electricity. One can look at that as a huge asset or be realistic and admit that this amount of power will not change the energy scene in the UK. Businesspeople can cleverly adver- tise a futuristic notion of tapping into lively volcanoes, or acknowledge the simple fact that today only about 27% of the electricity in Iceland is produced using geothermal resources of volca- nic origin, as compared to 73% utiliz- ing hydropower. These hydropower plants are powered by river water orig- inating from the large glacial ice caps. Why not look soberly into the facts? Limited resources Currently, Iceland's total electrical en- ergy production stands at about 17 ter- rawatts per year. That corresponds to a total constant power output of about 2,600 mw. One fifth of that energy goes to domestic and industrial uses. The rest is consumed by energy-inten- sive industry—mainly three foreign aluminum plants, soon to be expand- ed with a few smaller plants, produc- ing silicon metal (raw silica) and pure silica for solar cells. The current official plan for Icelandic electrical energy production includes some new hydropower plants, but the main emphasis is on geothermal power, with a total additional out- put of 1,400 mw estimated from both sources. Each geothermal power plant requires many years to be put stepwise into operation for a sensible, maxi- mum output from its hot reservoir. This plan does not imply that all the possible projects will be realized. In view of this, how much more pow- er is there to get from Iceland’s nature with today's technology, taking envi- ronmental issues into consideration? The opinions differ, but a figure for the total potential power output lands somewhere around 4,000 mw in the foreseeable future. For whom? Now, other questions arise. What Harnessing Volcanoes In Iceland Words ARI TRAUSTI Photo JULIA STAPLES SHARE: gpv.is/volc Ari Trausti Guð- mundsson has been active as a lecturer and non-fiction writer in the fields of geology, volcanol- ogy, astronomy, environmental sci- ence and mountain- eering, with over 40 published book titles. Educated as a geophysicist in Norway and Iceland, Ari Trausti works as a freelance consul- tant in the fields of geoscience, tourism and environmental issues as well as writing and hosting numerous radio and television programs and documentaries.
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