Renewable Energy

Latest Articles

Renewable Energy
Page Previous 1, 2, 3, 4, 5, 6, 7, 8 Next

Downsizer Forum Index -> Energy Efficiency and Construction/Major Projects

Author

Message

Ty Gwyn

Joined: 22 Sep 2010
Posts: 4613
Location: Lampeter

Posted: Fri Feb 27, 15 11:15 am Post subject:
Yes your correct Chris,it was my poor wording explaining that the power stations pulverize the chips, I`ve seen these biomass boilers advertised from 30kw upwards,there maybe smaller versions which are pellet fed similar to the coal gravity fed boilers,and as you say the larger chip versions are fed by auger and hence need more spacious accomodation.

Tavascarow

Joined: 06 Aug 2006
Posts: 8407
Location: South Cornwall

Posted: Fri Feb 27, 15 12:19 pm Post subject:
There are, a neighbour has one for their cottage & holiday let. They don't rate it. We have had a lot of late night confusion on this thread. When I asked what about geo-thermal I forgot that my near neighbour the Eden project are now in the throws of installing a system.

Ty Gwyn

Joined: 22 Sep 2010
Posts: 4613
Location: Lampeter

Posted: Fri Feb 27, 15 3:50 pm Post subject:
That is some undertaking Tav,drilling down 2 bore holes 25cm to a depth of 4.5 km and pumping down water,that`s a lot of water,but i presume it will be recycled around through the process.

Tavascarow

Joined: 06 Aug 2006
Posts: 8407
Location: South Cornwall

Posted: Fri Feb 27, 15 7:04 pm Post subject:

Ty Gwyn wrote:

That is some undertaking Tav,drilling down 2 bore holes 25cm to a depth of 4.5 km and pumping down water,that`s a lot of water,but i presume it will be recycled around through the process.

According to their blurb yes a closed system.
Interesting they claim it will only have a 25 year life span.

Quote:

Will it cool the Earth?

No. The heat extracted from the rock is a minute fraction of the vast heat available in the Earth�s crust. The design life of the plant is 25 years, and after it has closed the heat in the rock will recover, possibly allowing the well to be reused after some decades.

Ty Gwyn

Joined: 22 Sep 2010
Posts: 4613
Location: Lampeter

Posted: Fri Feb 27, 15 7:41 pm Post subject:

Another interesting point it their blurb was ,`That the rocks may need to be artificially Fractured,

Well i think we all know what that entails,water ,sand and nasty chemicals,surely not with this clean sustainable[for 25yrs] energy.

Considering the depth of Cornish Tin Mines where the rock was granite,this is way below that level,and i have not heard of any drilling to prove granite at 4km depth,
But i know a few Geo`s who may know the answer.

Mistress Rose

Joined: 21 Jul 2011
Posts: 16158

Posted: Sat Feb 28, 15 7:54 am Post subject:
The one in Southampton is over a natural hot spot and that seems to have been going happily since the 1960s. I think we are talking about two different types of geothermal. Having a life of 25 years doesn't seem really worth while, especially as it is going to involve fracking and a lot of hassle.

Hairyloon

Joined: 20 Nov 2008
Posts: 15461
Location: Today I are mostly being in Yorkshire.

Posted: Sat Feb 28, 15 10:03 am Post subject:

Falstaff wrote:

We have masses of garden waste, which our council wants us to pay �45 a year to take away...

So vote in a new council.

Nick

Joined: 02 Nov 2004
Posts: 34535
Location: Hereford

Posted: Sat Feb 28, 15 10:26 am Post subject:

Hairyloon wrote:

Falstaff wrote:

We have masses of garden waste, which our council wants us to pay �45 a year to take away...

So vote in a new council.

Or wonder if being asked for under a quid a week is a bad deal for a service like that. You can't have everything for nothing.

Tavascarow

Joined: 06 Aug 2006
Posts: 8407
Location: South Cornwall

Posted: Sat Feb 28, 15 10:34 am Post subject:

Hairyloon wrote:

Falstaff wrote:

We have masses of garden waste, which our council wants us to pay �45 a year to take away...

So vote in a new council.

Our local council waste collection don't pick up garden waste unless it's in the approved bag (which costs �1.00 & only from them) Similar ploy just a different way of implication.
They don't want you to pay �45.00, they don't want to collect.
They want you to take it to the recycling/composting site or compost it yourself & why not!!
They can't afford to send a separate vehicle around behind the rubbish lorry to collect the few bags of garden waste that might be there.
In most countries you have to pay to have anything taken away. Recyclable or not.

Hairyloon

Joined: 20 Nov 2008
Posts: 15461
Location: Today I are mostly being in Yorkshire.

Posted: Sat Feb 28, 15 11:23 am Post subject:

Tavascarow wrote:

They want you to take it to the recycling/composting site or compost it yourself & why not!!

I don't know about yours, but our local "recycling" site is not very good. There is generally a big queue of traffic out of the gate and back up the junction in three directions.
There is no excuse for it IMO.

Ty Gwyn

Joined: 22 Sep 2010
Posts: 4613
Location: Lampeter

Posted: Sat Feb 28, 15 3:04 pm Post subject:

2015 and this is the progress of Renewable Energy in South Wales,

Latest post on Welshcoalmines forum.

The whole energy policy of this country is a mess and has been so for many years. Down the road from me they are constructing a new gas fired remotely operated station (and a second on Garncoch common Swansea) which will both burn (in part Russian gas). They are required because the Welsh Assembly Government wants to cover the whole of Wales in wind turbines which simply are a joke (money making racket for land owners). The WAG also gave permission on the massive gas fired station on the Haven. It is both corrupt and simply insane.
Meanwhile in the third world the farmers are growing more and more biomass and less and less food to feed the people, because there is more money in that crop,what a wonderful world capitalism has created.

Ty Gwyn

Joined: 22 Sep 2010
Posts: 4613
Location: Lampeter

Posted: Sat Feb 28, 15 11:43 pm Post subject:
Slight correction to the above, The Garngoch set up is not a Gas site,its a site that will run 28 Diesel generators, So a bit more Green than first thought,Bio Diesel,lol.

Mistress Rose

Joined: 21 Jul 2011
Posts: 16158

Posted: Sun Mar 01, 15 8:20 am Post subject:
I don't see the point in growing crops just for bio-fuel. Using waste from crops is another matter, and is being worked on, but so far it hasn't happened.

Tavascarow

Joined: 06 Aug 2006
Posts: 8407
Location: South Cornwall

Posted: Sun Mar 01, 15 7:10 pm Post subject:

Mistress Rose wrote:

I don't see the point in growing crops just for bio-fuel. Using waste from crops is another matter, and is being worked on, but so far it hasn't happened.

Agriculture is overproducing food crops, so why not turn some of that overproduction into energy in one form or another?
Don't see the problem.
The farmer doesn't make any more on the overproduction because prices are lower & would probably welcome alternatives. & more alternative crops would probably benefit biodiversity & soil health.
Less pesticides, break from annual cultivation, I can see a lot of benefits.
I wouldn't want to see huge monocultures of miscanthus or SRC but integrated into the system would be an improvement IMHO.

Ty Gwyn

Joined: 22 Sep 2010
Posts: 4613
Location: Lampeter

Posted: Sun Mar 01, 15 7:44 pm Post subject:
Are we actually over producing? Not by the way the price of rolled barley has risen due to scarcity according to my supplier, Or the importation from France of rolled barley by my previous supplier. Why not grow Soya for feed instead of Bio fuel?

	Downsizer Forum Index -> Energy Efficiency and Construction/Major Projects	All times are GMT Page Previous 1, 2, 3, 4, 5, 6, 7, 8 Next
Page 3 of 8

View Latest Posts