Our Success is in our members who value our strength as a valued community.
Forum Stats
12249 Members
65 Forums
72890 Topics
982544 Posts
69 posts in the last 24hrs
Max Online: 7831 @ 8th Apr 2013 4:18pm
Who's Online - Click Me
72 registered (alan128, 13 invisible), 1694 Guests and 260 Spiders online.
Key: Admin, Global Mod, Mod
Social Media : Follow Us


(Views 7days)This Weeks Most Read
Incident at Westminster 1167
Martin Mcguinness dies 660
Council tax bill for this year 2017 467
File too large 462
Offset number plates 400
1882 Plan of the borough of Birkenhead and Wards 343
Port Sunlight 268
ford focus 1.6 t reg rattling 268
William Bernard's building, Birkenhead 233
What does this all mean? 208
New General Forums
Clocks go Forward
by Mark
Today at 03:01 PM
Mannequin Challenge AKA MRI Scan
by fish5133
Yesterday at 11:20 AM
Surely the most honest add.....
by buddy
20th Mar 2017 5:43pm
Happy Birthday DIZDAZDOZ
by snowhite
19th Mar 2017 4:24pm
New Wirral History
William Bernard's building, Birkenhead
by yoller
20th Mar 2017 4:27pm
1882 Plan of the borough of Birkenhead and Wards
by Dave_Wood
19th Mar 2017 11:57am
New Brighton Coop
by Mike_White
9th Mar 2017 12:48pm
Tranmere High School for Girls 1882 Chesnut Grove
by sarah708
6th Mar 2017 8:23pm
Whetstone Lane, Birkenhead
by MoretonExpat
6th Mar 2017 8:04am
Forum Tips
Photo Gallery Forums
Birkenhead Transport Museum 24th Feb 2017
fireworks on the Mersey last night
Topic Replies
Planet Earth Tonight
by joeblogs
1 second ago
Offset number plates
by venice
Today at 03:24 PM
Incident at Westminster
by fish5133
Today at 02:33 PM
Reclaimed floorboards needed.
by Excoriator
Today at 02:13 PM
various fly reels and boxes of fly's
by brady
Today at 10:50 AM
What song are you listening to?
by snowhite
Today at 10:46 AM
Challenge extreme angle grinder used once
by brady
Today at 10:43 AM
windows 7 64bit pc
by brady
Today at 10:38 AM
I am having a clear out!
by jeffrey
Today at 09:23 AM
March
M Tu W Th F Sa Su
1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30 31
Recent Posts : What's On ?
Planet Earth Tonight
by joeblogs
1 second ago
Lee and Cragg Quarries - Bacup
by Mark
23rd Mar 2017 7:43am
Topic Options
Rate This Topic
#1004893 - 21st Mar 2016 3:23am Tidal Turbines
diggingdeeper Offline

Wiki Guardian

Registered: 9th Jul 2008
Posts: 9875
Loc: Birkenhead
At last after years of money being thrown away on wind power it looks like Tidal Turbines are making progress with a few planned to come online in the next few years.

Tidal Turbines have loads of advantages over wind farms including the most important one - they are cost effective.

Hopefully the government will see sense and promote this technology and dump their idiotic plans for nuclear and wind power altogether.

Liquid Air Energy storage is also making great progress, power storage is an essential part of any non-continuous power source such as wind, tidal or solars.

CLICKY
_________________________
In a time of universal deceit - telling the truth is a revolutionary act. George Orwell

When the debate is lost, slander becomes the tool of the loser. Socrates

Top
National News : Advertising
Click me for more Information......

* * * vipstudios.co.uk - Photographic Studios * * *
Now Advertise with WikiWirral.
WikiWirral stats 35,000 Page Views a Day +500 Search Engines.. Click Me
#1004903 - 21st Mar 2016 8:48am Re: Tidal Turbines [Re: diggingdeeper]
Greenwood Offline
Smartchild

Registered: 20th May 2011
Posts: 601
Loc: Greasby
I'm amazed that we are not further forward in this - as our islands are surrounded by the sea, and the tides - unlike wind or sun - are utterly reliable, it's a no-brainer for power generation for the future. There have been several small-scale trial projects, my favourite being the Pelamis which minimises the risk of mincing marine wildlife, as the rocking motion of the waves acting on the hinged units creates the movement that drives the turbines. The units are sealed, unlike tidal barrage systems through which the water has to pass. Bring it on, I say! The sea has protected and sustained us for so long - this is another way it can help us.
Edit: I just checked on Pelamis and it seems the developing company went into administratin as of end 2014. Argh! That is a real shame. We need someone very rich to take up the baton on this, I think. Won't be me... *sigh*


Edited by Greenwood (21st Mar 2016 8:54am)

Top
#1005012 - 22nd Mar 2016 12:13am Re: Tidal Turbines [Re: diggingdeeper]
Excoriator Online   content
Wise One

Registered: 21st Jan 2010
Posts: 834
Loc: wirral
The Pelarmis was for wave energy rather than tidal energy.

I don't think there is any chance of tidal turbines mincing anything, by the way. They rotate quite slowly and are much smaller than windmills so the tip speed is lower and it is easy for any fish to avoid with ease. The fact that you cannot fish anywhere near them means that they could actually provide breeding sanctuaries for fish, something which we need if overfishing doesn't scoop up the lot!

Land based windmills, by the way, produce power at more than competitive cost. A 3MW machine these days costs about 2 million. It will produce - on average - about 1MW or 24,000 kWh a day. That's about 220 million kWhs over a working life of 25 years, so the cost is under a penny a unit. Maintenance costs are negligible. That's cheaper than fossil or nuclear, even if you ignore the cost of pollution or care of nuclear waste.

There is another benefit of wind energy which is rarely mentioned. And that is the short time it takes before they start generating a cash flow. A windmill can be installed in weeks. Hinkley will take a decade or two before a single joule is produced, during which a massive cost is incurred.

The UK's first floating offshore wind farm is now being designed and built in Scotland. It is possible these will reduce the cost of offshore wind to something comparable to onshore wind power, but that remains to be seen. I notice that the developers are proposing a Li-ion battery in order to save unwanted output from the windmills so it is a most interesting project altogether.

Top
#1005014 - 22nd Mar 2016 5:27am Re: Tidal Turbines [Re: diggingdeeper]
diggingdeeper Offline

Wiki Guardian

Registered: 9th Jul 2008
Posts: 9875
Loc: Birkenhead
I don't know who dreamt up offshore wind generation, total madness.

Onshore wind has very few suitable sites to achieve the 30% capacity figures. Excessive turbulence, excessive windspeed, omni-directionality, space requirements and aesthetics all play a part in reducing the viability of sites but as it will become the cheapest source of electricity the pressure will be on to have more.

I will admit that I would prefer to have wind turbines everywhere than even one nuclear fission site. Why we are still looking at fission instead of fusion I have no idea, I'm sure the technology would be there if the money was - if we can produce the Large Hadron Collider, surely we must be able to produce a viable fusion reactor.
_________________________
In a time of universal deceit - telling the truth is a revolutionary act. George Orwell

When the debate is lost, slander becomes the tool of the loser. Socrates

Top
#1005042 - 22nd Mar 2016 11:45am Re: Tidal Turbines [Re: diggingdeeper]
Excoriator Online   content
Wise One

Registered: 21st Jan 2010
Posts: 834
Loc: wirral
I doubt floating turbines are any more expensive to install than onshore ones. The necessary flotation tanks are pretty simple to construct and are probably comparable to the cost of excavation and building a concrete base and roads.

Floating turbines can be produced entirely on land and simply floated out and moored.

Fusion seems to be a dead duck. We are still thirty years off getting a working one, and have been ever since the 1950s. Nobody has managed to make a sustainable one yet, let alone solving the engineering needed to extract the heat from a few micrograms of gas at 100 million degrees into steam at a few hundred degrees. Fortunately, we don't need to. We are bathed in a constant flux of plentiful energy from the fusion reactor 93 million miles away. All we have to do is go and collect it!

Making onshore turbines much bigger would not only reduce the cost of the electricity they produce, it would also greatly increase the number of suitable sites. Unfortunately onshore turbines in the UK are limited by law to what is now a lot smaller than the 7 and 8MW monsters you can build at sea.

Top

Moderator:  Mod 
Random Wirral Images

Click to View Topic.
Newest Topics
Planet Earth Tonight
by granny
Today at 11:50 AM
Reclaimed floorboards needed.
by Gold_Moon
Today at 10:45 AM
Has Talktalk been hacked yet again?
by Habdab
Yesterday at 10:25 AM
Offset number plates
by venice
23rd Mar 2017 1:24am
What does this all mean?
by venice
22nd Mar 2017 12:20pm
For Sale & Free
various fly reels and boxes of fly's
by brady
Today at 10:48 AM
Challenge extreme angle grinder used once
by brady
Today at 10:43 AM
White Hyundai I30, 2011 plate For sale, 1.4 petrol
by goodoldphil
Yesterday at 06:24 PM
I am having a clear out!
by TheComputerLab
Yesterday at 04:01 PM
Genuine Canada Goose Men's Chilliwack Jacket - L
by Liverpooltiger
23rd Mar 2017 1:14pm
Featured Member
Registered: 22nd Mar 2010
Posts: 2869
Newest Members
Chippy, Onetoughcookie, Monkeyboyliam121, andreap, LairdLad
12249 Registered Users
Today's Birthdays
No Birthdays
New Wirral Info
Planet Earth Tonight
by granny
Today at 11:50 AM
Reclaimed floorboards needed.
by Gold_Moon
Today at 10:45 AM
Has Talktalk been hacked yet again?
by Habdab
Yesterday at 10:25 AM
What does this all mean?
by venice
22nd Mar 2017 12:20pm
black contiboard locally?
by fish5133
21st Mar 2017 9:30pm
News : New Topics
Incident at Westminster
by granny
22nd Mar 2017 3:40pm
Martin Mcguinness dies
by Dilly
21st Mar 2017 9:29am
British troops to Estonia
by fish5133
18th Mar 2017 8:16am
Unusual Phone calls
by granny
16th Mar 2017 3:53pm
Thanks
by Christinerowland
14th Mar 2017 8:11pm
New Enthusiast Forums
Offset number plates
by venice
23rd Mar 2017 1:24am
File too large
by Dilly
20th Mar 2017 10:41am
ford focus 1.6 t reg rattling
by Little_B
19th Mar 2017 11:02pm
Alloys refurb and colour change. The Wheel Deal.
by TheComputerLab
18th Mar 2017 9:17am
Has anyone fished
by Habdab
17th Mar 2017 8:43pm
(Views 24hrs)Trending Newest Topics
Planet Earth Tonight 63
Reclaimed floorboards needed. 43
Clocks go Forward 5
Wirral Sunrise Sunset
Sunrise Sat 6:00am
Sunset Sat 6:35pm
Local Time Sat 5:20pm
WikiWirral Can . . . .