spidergoat
Valued Senior Member
I doubt you would even notice.
Iceland, the powerhouse of the world?
- Thread starter ULTRA
- Start date
This is impossible, you cant transmit electricity over that sort of distance. Hell Australia has difficulty transmitting electricity backwards and forwards from tassie and that's just off the coast.
I guess you COULD use the energy to split hydrogen from water and then transmit THAT but I don't know how efficient that would be
I guess you COULD use the energy to split hydrogen from water and then transmit THAT but I don't know how efficient that would be
Well that's just your problem then.
Long-distance transmission of electricity (thousands of kilometers) is cheap and efficient, with costs of US$0.005–0.02/kWh (compared to annual averaged large producer costs of US$0.01–0.025/kWh, retail rates upwards of US$0.10/kWh
This is about 5 times as far as Tasmania is from your coast
http://en.wikipedia.org/wiki/Pacific_DC_Intertie
Long-distance transmission of electricity (thousands of kilometers) is cheap and efficient, with costs of US$0.005–0.02/kWh (compared to annual averaged large producer costs of US$0.01–0.025/kWh, retail rates upwards of US$0.10/kWh
This is about 5 times as far as Tasmania is from your coast
http://en.wikipedia.org/wiki/Pacific_DC_Intertie
spidergoat
Valued Senior Member
No, it's 26.2%. (from wiki). Let's see Iceland become energy independent and then we'll talk.
No, that number was just what the GT Power Plants produced by way of electricity.
They get a lot more primary energy directly as heat/hot water from GT.
http://en.wikipedia.org/wiki/Renewable_energy_in_Iceland
http://www.landsvirkjun.com/operations/electricity-production/
spidergoat
Valued Senior Member
Oh I see, thanks.
No. The Inter-island HVDC connection is actually 610km long, it runs from Benmore to Hutt Valley, and it's Bi-directional.
Not exclusively, no.
You are correct, but what I said is the general perception, enough to be bandied around in a hypothetical discussion like this one.
Of course I am.
I disagree.
No, it was factually inaccurate, and very definitely misleading. It creates a false impression.enough to be bandied around in a hypothetical discussion like this one.
For example.
According to Siemens Energy losses from HVDC and UHVDC power transmission are around 3%/1000km.
Most of the loss, and cost comes from the AC-DC conversion equipment, and that can be 'recovered' over surprisingly short distances.
Not only that, but Xiangjiaba - Shanghai has an overhead line length of 1,980km and a total loss of 7% (lower voltages would be closer to 10%), and the Rio Madeira Link is 2500km long (or it will be when completed).
And finally, even a modicum of research would have revealed that an HVDC link between Iceland and the UK is one of several proposals currently being considered.
EG: Source, Source.
No, it was factually inaccurate, and very definitely misleading. It creates a false impression.
QUOTE]
I didn't mean to give a false impression, in fact you have got me worried now, for there is the rumour going around that 30% of the power is wasted in the transmission from the South Island to the North Island. I will try and find out the truth about this now that I've seen your figures.
Although this topic is far fetched, I was amazed at how Iceland powers itself.
Iceland has a giant power plant.
Guess how many people run it?
2. Or it was 2. Could be 3 by now. There is not much maintenance apparently, and I guess contractors would come in for anything serious.
Iceland also runs heated water under its sidewalks to melt the snow and ice.
Awesome!
Iceland has a giant power plant.
Guess how many people run it?
2. Or it was 2. Could be 3 by now. There is not much maintenance apparently, and I guess contractors would come in for anything serious.
Iceland also runs heated water under its sidewalks to melt the snow and ice.
Awesome!
Because of the abundance of geothermal and hydroelectric sources Iceland was targeted by Alcoa Aluminum. As some of you know, aluminum production uses a lot of electricity. So it seemed the ideal way to economize. However, smelters are dirty. Icelanders reacted, and Alcoa has had a public relations problem there for many years.
Since learning of this disconnect between the abundance of energy reserves and the environmentally unfriendly smelting operation, I have wondered if they might instead use their free electricity to manufacture solar cells - also an energy hog. Compared to aluminum, it is a cleaner process. Though wasteful (low inefficiency of solar cells) it's better than letting the heat - and melting glacier - go unused.
Since learning of this disconnect between the abundance of energy reserves and the environmentally unfriendly smelting operation, I have wondered if they might instead use their free electricity to manufacture solar cells - also an energy hog. Compared to aluminum, it is a cleaner process. Though wasteful (low inefficiency of solar cells) it's better than letting the heat - and melting glacier - go unused.
The world uses about 132,000 terawatt-hours of energy a year. Iceland has the potential to produce about 50 terawatt-hours a year, or .03% of the world's energy needs.
T
Thdaoub
Guest
There are so much geothermal energy in Iceland.
For an island - yes, more than enough to provide all their power.
For a planet - no, it's a tiny, tiny fraction of the power we need overall.
The main thing that Iceland does to export its power generation surplus is to produce aluminum, and then export that. The vast majority of the price of aluminum consists of the cost of the energy used in the electrolytic process employed in aluminum refinement. People sometimes call aluminum "solid electricity" for this reason.
Those figures are for transmission over land. Undersea cables are an entirely different ballgame. Installation and repair are orders of magnitude more expensive, you need insultation and armoring, possibly DC conversion equipment, etc.
The world's longest submarine power cable is only about 350 miles long. Transmission costs are like an order of mangitude larger than what you cite for long-distance land transmission.
Most modern long distance power transmission (including the one in the post you're replying to) are DC.