Home  5  Books  5  GBEzine  5  News  5  HelpDesk  5  Register  5  GreenBuilding.co.uk
Not signed in (Sign In)


Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment.

Buy individually or both books together. Delivery is free!

widget @ surfing-waves.com

Vanilla 1.0.3 is a product of Lussumo. More Information: Documentation, Community Support.

Welcome to new Forum Visitors
Join the forum now and benefit from discussions with thousands of other green building fans and discounts on Green Building Press publications: Apply now.

    • 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.
    • 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...


Add your comments

    Username Password
  • Format comments as
The Ecobuilding Buzz
Site Map    |   Home    |   View Cart    |   Pressroom   |   Business   |   Links   

© Green Building Press