Green Forum, as in energy saving

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This certainly makes interesting reading, food for thought :)

Just to comment on something mentioned above, a topic currently wouldn't be deleted, it would be placed in the most appropriate forum possible or if none other General DIY.
 
PV is very popular in France, well in the part that I'm familiar with anyway, but I believe that there are discounts/subsidies/grants from the Government involved. I will admit to only knowing vague details about it because I haven't done any research.
 
Green energy is already out there on the internet. You can get 174m hits on google. Surely, you can get enough from there.

Red, I think you've popped up from another site to sell your wares.
 
wreckedit said:
Green energy is already out there on the internet. You can get 174m hits on google. Surely, you can get enough from there.
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Hello
I am a new member and spent 30 mins trying to find a forum that seemed to be looking at the New Green Technologies so I definitely think a Green Forum would be a great idea. :D

Calling it Green Forum would certainly open up a lot of cross over discussions so naming it New Green Technologies would weed out a lot of unwanted stuff (but not all). :roll:

I have had installed in my house one of these new (although the technology has been around for some time, its just beginning to be seriously looked at) Thermodynamic Panels.

The firm that installed it call it a solar Thermodynamic panel (by no stretch of the imagination can it be classed as solar, yes it will use solar power if available but it works best when it is raining and dark.

It is closer related to a Air source heat pump although an air source pump utilises a fan to push/pull the air over a heat exchanger filled with a form of low temperature fluid.

The Thermodynamic can best be described as a fridge in reverse (it pulls in any temperature over -5 degrees and below 40 degrees placing it into a refrigerant) it is then sent into a heat exchanger where it dumps the extra temperature (could be 1 degree or 5 degrees) into your hot water it then returns to the panel via a compressor to repeat the process.

I may have the circuit the wrong way around but it definitely works (I live in Scotland and the weather we have been having over the last four/five months has been freezing, the highest temp has been 4 degrees.

The system was installed in November and the cylinder temperature has averaged 53 degrees, My wife used all the hot water one night so it was down at 14 degrees but the following morning it was up at 48 degrees, (the outside temperature was 0 degrees and it was raining. Several hours it was back up at 55 degrees.

It may not be free hotwater but for the cost of maybe 1 or 2p a day it sure comes close.

And I AM NOT A SALESMAN just an very interested party it seems as this is fairly new technology (in Building terms) a person might not know much about it and are very cautious regarding it, or they think they know all about it and see the term it 'Free Hot water' so condemn it as a gimmick. :evil:

Scotsplum
 
heeelllooo and welcome Scotsplum :D :D :D

what is the consumption per hour off the compressor/fan/pump
i am sure it will be many more time higher than you think

if it averages 100w per hour thats 2.4kw a day or around 35p a day
off course if it say 500w its £3.50 so you need to know energy consumed to know the actual cost

how long have you had the system
 
ban-all-sheds said:
robbie77 said:
I like the idea also, there have been a few threads that pop up now and again that tend to get swamped in negativity...
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It's not "negativity" to point out that domestic PV systems in this country will do SFA to reduce the demand for grid electricity and are being encouraged by a system which involves taking money from the less well off and giving it to people better off than them so that they can waste it on a pointless hobby.
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What utter rubbish. I work for a solar PV installation company and all our customers significantly reduce their use of electricity from the grid as well as exporting around 50% of the electricity their panels reduce which will be used by their neighbours in a highly efficient manner (low transmission losses). So PV DOES reduce overall demands for electricity from the rest of the grid.
 
Peter1919 said:
ban-all-sheds said:
robbie77 said:
I like the idea also, there have been a few threads that pop up now and again that tend to get swamped in negativity...
Click to expand...
It's not "negativity" to point out that domestic PV systems in this country will do SFA to reduce the demand for grid electricity and are being encouraged by a system which involves taking money from the less well off and giving it to people better off than them so that they can waste it on a pointless hobby.
Click to expand...
What utter rubbish. I work for a solar PV installation company and all our customers significantly reduce their use of electricity from the grid as well as exporting around 50% of the electricity their panels reduce which will be used by their neighbours in a highly efficient manner (low transmission losses). So PV DOES reduce overall demands for electricity from the rest of the grid.
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Yes Peter and the working class pay stupid money to subsidise them, yet another stealth tax from gov.con.

Take the subsidy away and and PV will loose money.
 
doitall said:
Peter1919 said:
ban-all-sheds said:
robbie77 said:
I like the idea also, there have been a few threads that pop up now and again that tend to get swamped in negativity...
Click to expand...
It's not "negativity" to point out that domestic PV systems in this country will do SFA to reduce the demand for grid electricity and are being encouraged by a system which involves taking money from the less well off and giving it to people better off than them so that they can waste it on a pointless hobby.
Click to expand...
What utter rubbish. I work for a solar PV installation company and all our customers significantly reduce their use of electricity from the grid as well as exporting around 50% of the electricity their panels reduce which will be used by their neighbours in a highly efficient manner (low transmission losses). So PV DOES reduce overall demands for electricity from the rest of the grid.
Click to expand...

Yes Peter and the working class pay stupid money to subsidise them, yet another stealth tax from gov.con.

Take the subsidy away and and PV will loose money.
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All electricity users pay to subsidise them but this is a tiny fraction of electricity bills, which are mainly raising due to increased costs of gas and profiteering from the big energy companies not the costs of green subsidies.

Of course if you took the subsidy away then PV would not make money for people, that is the reason it needs a subsidy at the moment however in less than 2 years the subsidy has more than halved yet the returns are still good due to falling costs as the costs of solar PV panels and inverters has more than halved in that time which also means the up front costs are much less than they were. So I think it will not take too many more years before the subsidy is not needed, especially if electricity prices keep raising at the rate they have recently as the savings on importing electricity are already becoming significant.

However my point was that BAS was talking crap as PV evidently DOES reduce demand for electricy from other grid supply sources
 
Yes maybe it does reduce demand from other sources, but at a cost of maybe 10 x per unit than the supply from other sources.

Also what you or other save the planet types fail to mention, is how the grid works.

It's known that cooling the supply cables increases the efficiency, and it's a known problem that feed in, heats the cables and reduces the efficiency, so any gains is more than lost.

National grid are spending £1,000000 of quids on cooling stations around London etc to reduce the problem.
 
doitall said:
Yes maybe it does reduce demand from other sources, but at a cost of maybe 10 x per unit than the supply from other sources.
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You are living in a dream world if you really believe that dia. At best it's an exaggeration. At worst It's a lie, not true, bunkum.
 
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