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17 Mar 2010 10:03:08

MCS calls marine energy essential for low carbon economy



MCS calls marine energy essential for low carbon economy
Harnessing wave and tidal energy is essential for Britain to reduce greenhouse gas emissions, an environmental organisation has said.

The Marine Conservation Society (MCS) explained that marine energy, developed alongside land-based renewables, would prove effective in helping the UK meet its low carbon goals.

Melissa Moore, senior policy officer at the organisation, added that the country is likely to increase its marine energy focus in the coming years.

"[The government has] already identified areas to develop 32GW, an enormous amount, of offshore wind. That is about 7,000 wind turbines," she said.

"We want to develop these as soon as possible because we are behind on our renewable targets [but] we need to ensure that the cumulative impact does not have an adverse impact on marine species such as porpoise."

Earlier this month, a report from RenewableUK suggested that the wave and tidal sector had the potential to provide power to up to 1.4 million homes in the country.



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Discussion Thread  

19 Mar 2010

Ok, so this investment will supply 1.4 M homes. How much investment is this - in GB pounds ?. Divide by 1.4M and we have the investment of each home. My question is "What are the chances of anyone being able to repay that ?"
Again they talk of Watts, and not Joules. So now and then these "turbines" as they like to call them, put slightly over 4MW each into the county's grid, (or so we have to believe) if the wind happens to be being accomodating. This is a meaningless figure untill we know how for many hours this - or some average - output is maintained !!
A very sensible design of wind turbine-alternator device - TAD ? - can be shown, logically, to be about 1/40th of the cost per watt, and will readily return 5% of its actual cost, per annum. I define "very sensible" design as one which supplies a full half of the entire k.e. of the wind as watts into an electrical load.


19 Mar 2010

Apologies for my last comment being slightly off-track. These are wave and tidal schemes, not "wind turbines" !!. It's late. I'm tired.
Still, can anyone answer my question ? My guess of an answer is "maybe, just maybe !" But the point that matters is will the things last long-enough to pay for themselves - several times over ? And how long will this be ? After that the patient and persevering owners will have a serious Goose ! But it's those initial investors that are required. It is very sad to see good money - energy - resourses - being thrown into junk that "looks good" i.e. impresses and cheers those concerned about global warming, i.e. "windfarms" !!




Discussion Thread  

 


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