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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
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    • CommentAuthorbillt
    • CommentTimeMar 4th 2017
     
    It disagrees quite wildly with gridwatch for the UK.

    GW says 2.51gW wind, that site says 5.54gW.
    GW 15.5GW CCGT, that site 10gW.
    GW 47% fossil fuels, that site 38%.

    I know which one I believe.
    • CommentAuthorEd Davies
    • CommentTimeMar 4th 2017
     
    Surprising, from looking at the North Sea in the general direction of Denmark there are enough whitecaps that I'd expect them to be running on wind only.
    • CommentAuthorEd Davies
    • CommentTimeMar 4th 2017 edited
     
    Posted By: billtGW says 2.51gW wind, that site says 5.54gW.
    Grid watch's wind meter is for metered wind. Even some quite large (10s of MW) embedded (i.e., connected to a distribution network rather than directly to the grid) wind farms are not metered in real time but just look like a reduction in demand (same as domestic PV, for example). It might be that that site is making an estimate of the non-metered contribution. Not enough to account for the discrepancy but goes quite a long way, I suspect.
    •  
      CommentAuthorDamonHD
    • CommentTimeMar 4th 2017 edited
     
    Last time I spoke to people who knew a few years ago, wind not metered by NG/Elexon, ie not feeding into the high voltage transmission network, was about 40%, so the above figures are plausible. Looking at UKWED and Elexon stats for total capacity would give a tighter number, after allowing for some of the UK wind figure being NI, which is not on the GB grid and more on-shore lower-capacity-factor turbines being unmetered.

    Also, the electricitymap guys get their numbers from ENTSO-E and I get mine from Elexon, and categories do not entirely align and adjustments such as the above may be built in to ENTSO-E numbers. We only had a brief chat so far, so I don't yet know. I am hoping to hatch bigger plans to work further with them...

    Rgds

    Damon
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