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Some comments on Solar Water Heating
Britain goes green!
Homeowners may be forced to improve energy efficiency when renovating (Telegraph)
The Government is about to release yet another plan to promote renewable energy in the UK. Lets hope its not going to be managed by the same people who cocked up the LCBP grants scheme!
Any plans to promote greeen energy with Government support needs to be simple and consistent.
I would also recommend that any grants are available to all.
But allocated only for systems where the supplier / installer advertises a freely available pricing structure ahead of and included within any direct sales activity.
See Greenpeace's Efficiencity - an animated tour of what city's could be, sadly not what the eco towns are being built as!
Costing the Earth on bbc radio - All about Solar Energy
- listen again
Did you know that Britains Food reserves used to be 100's of days. Now they are down to about 15!
There are no more grain mountains, no more wine lakes, food prices are at an all time high, an increasing number of countries are banning food exports; there are food riots all over the world. People can't afford to eat, so what do our government do: Steal from the Poor to give to the Rich
"In many cases some of the biofuels which they're using won't cut carbon dioxide emissions and could indeed lead to more carbon dioxide emissions"
Tony Bosworth, Friends of the Earth
Read Article
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From the 15th April, all fuel that we buy will contribute to the growing mass starvation in the world! 2.5% of Petrol and diesel will be made from food (called biofuel).
The cost in energy in making the biofuel is equivalent to the energy in the fuel. It is an incredibly stupid idea! Not only that but it depletes the land, leads to more deforestation, and hides the problem - we need to change!
Click here to Petition the Prime Minister to stop this madness
My latest project - A Renewable Energy Map
being developed alongside True Energy.
The menu to the left is fairly clear but this is what I am concentrating on:
Solar Energy - Water Heating: Installed in 2005 , Solar heating is possibly the most cost effective way of using solar energy, especially if you have oil fired heating, but don't expect to use it to heat your house, just your water. Lots of practical information
Solar Energy - Electric: Installed 2003 The great white hope, but hugely expensive for the domestic user though a good bet for the commercial customer - tax advantages and often cheaper than some office cladding!
Wind Generation: A new industry that is just starting to take off with the consumer market, but risks being installed inappropriately. A good bet in the right place, ideal for businesses with 24/7 processes needing electricity.
Shop! Purchase Solar electric and solar hot water products : Online shop selling solar systems for off-grid homes, solar panels both PV and water heating, off grid solar lighting. Not my shop, but an off-shoot from the Centre for Alternative Technology in Wales
Switch to green electricity: Okay its just the same electricity that you had before, but I suppose its a vote in the right direction.
Grants and assistance: From our 'Brown' Government, not much!
Forum: August 2007 Just started this so not much on it yet. An opportunity to comment on your installation, ask for advice etc etc.
My Solar House
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VELUX windows, double glazed, free light - some heat?
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IBC (1,000 litre water butts) free rain water
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Dry lining with 2inch expanded polystyrene on most walls
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6 inches of insulation in roof of old house
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LED lighting and Low energy bulbs
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What
next?
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Increased insulation in old part of house
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old floor to come up - brick tiles - and have insulation placed
underneath then replaced.
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Ivy encouraged to grow up North facing wall.
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possible - Heat sink mass to be built into conservatory, not
sure how yet. Basically - how to carry heat through from summer
to winter
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Lessons I am learning.
Though the PV is very much a case of install then forget it, any
excess electricity is sent to the grid, the Solar Thermal needs a
bit more thought.
If the boiler has heated the hot water cylinder, the solar, however
hot the sun is, won't get a chance, the solar panels shut down when
the tank reaches the preset working temperature. I've set the boiler
so that it heats the cylinder to a max of about 50C, the solar so
it goes up to 60C
The solar water heating will cope with all heating from mid May
through to the end of September
During a wet and cloudy August or July, the solar heating doesn't
quite keep up with the hot water use - wife not happy. In this case
I can't get in to re commission the boiler as the swifts have taken
up residence and they object to me spending too much time near their
chicks - 2nd brood of the year!
Its a hard water area, time to consider a water softener or some
kind of water treatment in order to keep the hot water cylinder happy.
I think that the stated energy generated doesn't seem to be matched
by the volume of hot water.
So that I use even more of the self generated solar PV electricity,
I have fitted timer switches on my freezers so that they automatically
switch off during the middle part of the night. these also have an
extra layer of expanded foam to keep the cold in. |
Front Windows: We were planning on replacing our front windows which are
wooden box sash but single glazed. On looking at the various options we
almost settled on highly insulating scandinavian double glazed units. But
though the brochure prices indicate about £600 a window, the quoted price
is nearer £2000! I have 7 windows to replace, that means £14,000... Wow!
Does it really cost £2,000 to make a single double glazed window out of
what must be standard shaped bits of wood? Well, we are sticking with the
original windows which will be repaired and have ordered secondary glazing
at a total of less than £1,300 for all the windows!
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