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View Diary: New Report: Solar could provide 100% of world's energy needs by 2050 using only 1% of world's land (204 comments)

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  •  Considering that 2% of global land already is (0+ / 0-)

    covered by cities, it is not that much in terms of getting solar installed.  Installing solar on roofs and shading parking lots with solar will pretty much get us near to 100% solar electricity, especially if it is combined with efficiency improvements.

    Solar generally is best where there is lots of sunshine and at high altitude.  Warmth can actually be detrimental as it lowers the efficiency of the most common types of solar panels.  The levels of insolation are key.  That's what is so amazing about Germany's big solar power boom - they aren't at a high elevation and they don't have lots of sunshine, yet they're already covering 5% of their electricity needs with solar in a highly industrialized, densely populated nation.

    You make a good point about the potential that renewables have for shifting some global power paradigms.  Renewables can really help developing and 3rd world nations gain access to amounts of inexpensive electricity/energy that would have been unthinkable for them just a decade ago.  Uruguay, for example, is going all-in with wind power and expects that to actually lower its electricity prices by 30%.  And African nations are increasingly looking to leapfrog into the renewable energy era with wind and solar power.

    Chile is also set to profit greatly because it has some areas that receive some of the highest levels of solar radiation in the world.  Their electricity-hungry mining industry will likely be near 100% solar-powered in the next 10 to 15 years.  Here's an interesting article about Chile:

    3.1 GW Of New Solar Power Projects Approved By The Chilean Environmental Authority
    January 11, 2013

    http://cleantechnica.com/...

    "A candle loses nothing by lighting another candle" - Mohammed Nabbous, R.I.P.

    by Lawrence on Fri Jan 18, 2013 at 02:56:16 PM PST

    [ Parent ]

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