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 Topic: Power saver? |
nathanbriggs
Replies: 13
Views: 8693
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 Forum: Energy Efficiency and Construction/Major Projects Posted: Thu Mar 08, 07 1:40 pm Subject: Power saver? |
It's snake oil of the worst kind
The unit is basically a low impedance capacitor, which should in theory power factor correct your inductive loads like motors in refrigerators and such (if it is po ... |
| Topic: B & Q and wind turbines |
nathanbriggs
Replies: 77
Views: 57899
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Forum: Energy Efficiency and Construction/Major Projects Posted: Wed Oct 25, 06 5:31 pm Subject: B & Q and wind turbines |
| On the windsave site I am interested in the graphs that show the energy extracted vs the theoretical maximum. How are you defining energy extracted? Is that in terms of electricity available for us ... |
| Topic: Anyone used the navitron kit ? |
nathanbriggs
Replies: 20
Views: 17385
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Forum: Energy Efficiency and Construction/Major Projects Posted: Wed Oct 25, 06 5:14 pm Subject: Anyone used the navitron kit ? |
martin over at selfsufficientish.com works for navitron and is pretty active on the forum normally (his laptop just got lightning so give him a couple of days)
I know thats not exactly a recommenda ... |
| Topic: Monbiot against micro-generation |
nathanbriggs
Replies: 10
Views: 11272
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Forum: Energy Efficiency and Construction/Major Projects Posted: Sun Oct 22, 06 10:54 pm Subject: Monbiot against micro-generation |
| I think in terms of efficiency then microgeneration is not that efficient. As I understand it, if you have a small turbine then you have to store your exess power in batteries. By far the most eco fr ... |
| Topic: B & Q and wind turbines |
nathanbriggs
Replies: 77
Views: 57899
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Forum: Energy Efficiency and Construction/Major Projects Posted: Fri Oct 20, 06 3:37 pm Subject: B & Q and wind turbines |
Well no, not to get lawyer-ish but I have attributed it as not my own work
(I haven't credited it as I am about to criticise it and that seems unnecessarily nasty on a forum like this)
Lastly I ... |
| Topic: B & Q and wind turbines |
nathanbriggs
Replies: 77
Views: 57899
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Forum: Energy Efficiency and Construction/Major Projects Posted: Fri Oct 20, 06 3:25 pm Subject: B & Q and wind turbines |
found this on a competitors website what do you guys think?
Its part of my search to find a quick concise way of describing turbulence without bringing in to much mathematics
http://www.nbriggs.co ... |
| Topic: B & Q and wind turbines |
nathanbriggs
Replies: 77
Views: 57899
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Forum: Energy Efficiency and Construction/Major Projects Posted: Thu Oct 19, 06 3:20 pm Subject: B & Q and wind turbines |
Hi Dougal
just fyi I'm getting thoroughly mauled on self-sufficientish at the moment 
The data came from http://www.windpower.org/en/tour/wres/hill.htm but I can't find the specific page, they ... |
| Topic: B & Q and wind turbines |
nathanbriggs
Replies: 77
Views: 57899
|
Forum: Energy Efficiency and Construction/Major Projects Posted: Thu Oct 19, 06 1:25 pm Subject: B & Q and wind turbines |
So how come, in wind farms, there are lots of turbines all sited relatively closely to one another? Don't they create interfering turbulence too?
Never excuse this sort of question as daft judi ... |
| Topic: Monbiot against micro-generation |
nathanbriggs
Replies: 10
Views: 11272
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Forum: Energy Efficiency and Construction/Major Projects Posted: Sun Oct 15, 06 10:45 pm Subject: Monbiot against micro-generation |
| Why do people read something and despite being relatively intelligent then start using what they've read as though they understand it? Monbiot (for just one example) says that DC cabling has less loss ... |
| Topic: Windsave |
nathanbriggs
Replies: 17
Views: 14305
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Forum: Energy Efficiency and Construction/Major Projects Posted: Sun Oct 15, 06 10:28 pm Subject: Windsave |
Something about lime mortar being fragile and useless and likely to be shaken to pieces by the turbine.
Makes me think the turbine must be damn wobbly.
Lime mortar doesn't cope well with vibrati ... |
| Topic: B & Q and wind turbines |
nathanbriggs
Replies: 77
Views: 57899
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Forum: Energy Efficiency and Construction/Major Projects Posted: Mon Oct 02, 06 3:23 pm Subject: B & Q and wind turbines |
For those of you that don't remember or haven't seen me before I work with Windsave and helped design the system
First, an apology. Windsave *have* now posted a performance curve on their website ... |
| Topic: How Britain can be self sufficient |
nathanbriggs
Replies: 13
Views: 8599
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Forum: Energy Efficiency and Construction/Major Projects Posted: Mon Oct 02, 06 1:57 pm Subject: How Britain can be self sufficient |
making me work long hours, I've got some time today so I thought I'd visit my old haunts and respond to the B&Q launch, figuring it was bound to raise questions.
I actually have (some) hard dat ... |
| Topic: Standby button - friend or foe? |
nathanbriggs
Replies: 19
Views: 12938
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Forum: Energy Efficiency and Construction/Major Projects Posted: Mon Oct 02, 06 1:49 pm Subject: Standby button - friend or foe? |
Turn em all off electrcity doesn't "damage" components when it is switched on and off.
We used to make an oscilloscope in which the manual said:
"For the longet life of this component:
a) never s ... |
| Topic: How Britain can be self sufficient |
nathanbriggs
Replies: 13
Views: 8599
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Forum: Energy Efficiency and Construction/Major Projects Posted: Mon Oct 02, 06 1:38 pm Subject: How Britain can be self sufficient |
I agree this paper is badly written and its one of many that I have seen lately where they stack their opinion on someone else's and get some pretty tall towers of total tosh.
But do you have any i ... |
| Topic: Electrical help, armoured cable sizes? |
nathanbriggs
Replies: 4
Views: 17960
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Forum: Energy Efficiency and Construction/Major Projects Posted: Thu Oct 27, 05 2:10 pm Subject: Electrical help, armoured cable sizes? |
1.5sqmm will give you a volt drop approx 1.37V watts loss approx 19W ignoring terminations
2.5sqmm will drop about 0.82V approx 12W
As with the other posters my take is that 1.5sqmm is close to th ... |
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