Fri, 06 Mar 2026 21:06:39 +0000 https://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=150929#Comment_150929 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=150929#Comment_150929 Sun, 08 Jul 2012 11:22:16 +0100 windy lamb Any thoughts?.

- I think my neighbours should be a bit more concerned than me because at least 6 of them are within 600m of it, 2 are 400m and I don't think turbulence will be their problem! ]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=150984#Comment_150984 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=150984#Comment_150984 Sun, 08 Jul 2012 18:58:50 +0100 CWatters https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151001#Comment_151001 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151001#Comment_151001 Sun, 08 Jul 2012 22:16:28 +0100 SteamyTea Make sure you have some data from a local weather station that you can use to calibrate your turbine, then if change does happen, you can prove it. If there is no change, we have all learnt something.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151003#Comment_151003 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151003#Comment_151003 Sun, 08 Jul 2012 22:33:40 +0100 Gavin_A https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151004#Comment_151004 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151004#Comment_151004 Sun, 08 Jul 2012 22:42:32 +0100 SteamyTea If it goes ahead, get the developer to pay for some decent monitoring equipment for you ]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151020#Comment_151020 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151020#Comment_151020 Mon, 09 Jul 2012 10:20:27 +0100 windy lamb I did have a weather station that gave some good data (19% of the time the wind would go though the big turbine towards mine) but that was replaced by the Gaia - anyway thinking about it, I can't see how the neighbours site would be worth developing cos the wind speed can't be much better than my 5m/s (but I suppose i am 18m and they would be 50m AGL).
I couldn't prove anything if the big turbine went up, for one I wouldn't have the money and don't think their developer would help with that! I think perhaps the GC Newts will prevail anyway!!!!!!]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151023#Comment_151023 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151023#Comment_151023 Mon, 09 Jul 2012 10:36:59 +0100 gustyturbine Gusty.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151031#Comment_151031 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151031#Comment_151031 Mon, 09 Jul 2012 11:00:43 +0100 windy lamb https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151033#Comment_151033 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151033#Comment_151033 Mon, 09 Jul 2012 11:32:10 +0100 windy lamb Seems, therefore, Gusty is right (just) in that I'm way too far away to have any impact at 16.6 x blade diameter!!]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151047#Comment_151047 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151047#Comment_151047 Mon, 09 Jul 2012 13:46:53 +0100 djh Posted By: windy lambUnfortunately, it is down (prevailing) wind from my Gaia 11kW wind turbine at around 600m-800m away.
Is that a typo? If the new farm is downwind there won't be any wake effects at all. Well, actually the flow does start to change in advance of the obstruction, but not very far in advance.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151051#Comment_151051 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151051#Comment_151051 Mon, 09 Jul 2012 13:54:02 +0100 gustyturbine A typo I think however turbines tend to yaw through 360 degrees. Down wind one day up the next....

Enercon 48 eh. Very good turbine. They will generate up to 35m/s although the power curve does drop away.

]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151060#Comment_151060 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151060#Comment_151060 Mon, 09 Jul 2012 17:15:06 +0100 windy lamb The Encercon 48 is a good turbine but not necessarily when you put it 400m from houses! Might upset the neighbours especially when the landowner lives a few miles away!]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151086#Comment_151086 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151086#Comment_151086 Mon, 09 Jul 2012 21:53:28 +0100 renewablejohn https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151091#Comment_151091 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151091#Comment_151091 Mon, 09 Jul 2012 22:25:45 +0100 windy lamb https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151113#Comment_151113 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151113#Comment_151113 Tue, 10 Jul 2012 08:06:17 +0100 SteamyTea https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151122#Comment_151122 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151122#Comment_151122 Tue, 10 Jul 2012 08:43:01 +0100 renewablejohn Posted By: SteamyTeaWould they fit a smaller generator because of the lower windspeed?

Its just a con to get through planning. The turbine is still a 850kw but restricted electronically to 500kw as that is the maximum the grid will currently accept. Once the turbines are in the grid can be upgraded to the full 850kw per turbine. Windspeed is quite high at average 6.5 m/s.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151133#Comment_151133 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151133#Comment_151133 Tue, 10 Jul 2012 09:14:27 +0100 ted Posted By: windy lamb16.6x blade diameter

Any chance of a link for that reference, please Dave? Very relevant to something I am looking at. I've read a few papers on turbine wake but haven't seen that figure quoted.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151141#Comment_151141 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151141#Comment_151141 Tue, 10 Jul 2012 09:43:40 +0100 windy lamb http://www.arising.com.au/aviation/windturbines/wind-turbine.html]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151235#Comment_151235 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151235#Comment_151235 Tue, 10 Jul 2012 22:59:32 +0100 gustyturbine Gusty.

very upset by cobblers. ]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151236#Comment_151236 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151236#Comment_151236 Tue, 10 Jul 2012 23:01:52 +0100 gustyturbine ]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151243#Comment_151243 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151243#Comment_151243 Wed, 11 Jul 2012 07:44:38 +0100 Joiner
The issue of how the developer decides which generator to fit according to whether the grid can accept whatever the developer wants to put in is new to me. I had no idea they could keep their options open in anticipation of future changes to grid limitations. I wonder how many others were surprised by what you've just said?

This place is a little cosmic FE college.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151260#Comment_151260 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151260#Comment_151260 Wed, 11 Jul 2012 11:53:23 +0100 windy lamb So you get planning for your 500kW turbine (which you can upgrade to 850kW by pressing a few buttons) but that's useless when the 4 landowners that your grid connection has to cross all decline permission to the DNO. Can the DNO force the landowners to give access for what is not a national infrastructure project? I know we had to get permission from our neighbours to connect to the grid a few years ago. I'd suggest you establish whether a connection is possible before you apply for planning for any size of turbine. Many seem not to - that's the cobblers that upsets me.
FE college but without the spots and silly hair cuts!]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151276#Comment_151276 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151276#Comment_151276 Wed, 11 Jul 2012 14:30:58 +0100 renewablejohn
Unfortunately our planners are becoming paranoid in respect of even small wind turbines.

I have just found this site which appears to be set up by the council although claimed to be by local residents. Main anti wind person in the village is the local councillor.

http://westpenninesprotectiontrust.co.uk/research/turbines/

As for the 500kw debacle it was rejected by planners for reasons I cannot understand but the refusal notice is on the Blackburn & Darwen planning site under Lower Aushaw farm]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151321#Comment_151321 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151321#Comment_151321 Wed, 11 Jul 2012 21:49:04 +0100 windy lamb https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151758#Comment_151758 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151758#Comment_151758 Mon, 16 Jul 2012 11:17:01 +0100 windy lamb There's plenty of Enercon 48s going up which have been "downgraded" to 500kW, in the UK and overseas. Don't know why but just do an internet search to see planning applications. So why would you buy an 800kW turbine then restrict it to 500kW? - if the grid can't handle that, then why not put up a 250kW turbine that's been rated as 250kW? Seems someone somewhere is making too much money.
It's a bit like "the inappropriate siting of wind turbines being the industry's own worst enemy", again.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151762#Comment_151762 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151762#Comment_151762 Mon, 16 Jul 2012 11:31:46 +0100 DamonHD
I can think of two reasons why an electronically-limited turbine would make sense:

1) Expectation that local grid capacity will increase.

2) Making better use of a low-wind site. (In the same way I have 5.2kWp of PV but the abs max output of my inverters is a shade under 4.5kWp: the available power is so rarely going to exceed that figure that the extra infrastructure to harvest the rest is not worth it.)

Rgds

Damon]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151766#Comment_151766 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151766#Comment_151766 Mon, 16 Jul 2012 12:01:41 +0100 gustyturbine Very interesting. I would guess that this pattern then must be speculative to try and increase the output with grid upgrades as Damon stated. I would want to be certain that the future upgrade was going to happen though as turbine cost are around the £1.1 million installed per MW. What a gamble to take. So a 500kW turbine with grid connection etc could cost £550,000 (ball park figure) and the 800 kW could cost £850,000 or so. Then you rectrict your generation after paying over the odds for the turbine. Are these in areas that the grid work has already had the green light? Enercon are very expensive too by the way. Before you restrict the output.
I have never seen this pracice before in my 13 years working in the wind indusrty. Just goes to show that I am a novice...........
I have seen larger rotors going on turbines to increase capacity factor in lighter wind areas but this is from design stage and has always been the intention.
Gusty.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151801#Comment_151801 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151801#Comment_151801 Mon, 16 Jul 2012 15:29:57 +0100 SteamyTea How have you got around the G83 restriction of 16A/3.68kW?

Is there a 500 kW turbine that would suit the wind regime for that area (may be very skewed) and cost less than the Encon.
At that sort of money I am sure people have checked it a few times.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151809#Comment_151809 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151809#Comment_151809 Mon, 16 Jul 2012 16:14:31 +0100 DamonHD
At the school the (same) DNO asked us to fill in the G59 forms for the second system we commissioned but didn't ask for any extra technical steps over G83, so we have two identical ~8kW (3ph) inverters feeding in, one technically covered by G83 and its twin by G59.

A friendly DNO makes a big difference.

Rgds

Damon]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151819#Comment_151819 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=9311&Focus=151819#Comment_151819 Mon, 16 Jul 2012 17:29:49 +0100 windy lamb