solar energy in kent DIY Solar Water Heating-
  Make your own solar panels? Or Buy and Install

Thanet array seen from top of North Downs near Lenham. Turbines are about 30 miles away - see map

 



Headlines

A dream becomes concrete
Outside, it blends into rocks and cliffs; inside, it blazes with warmth: A wind-energy consultant and a retired stockbroker use high-mass concrete walls and a lot of DIY ingenuity to create a sustainable home within their means.
American Researchers develop DIY solar panels
It may be as easy as click-and-print when you need a spot of solar energy, according to American researchers who say they've developed an inexpensive solar cell that can be painted or printed on flexible plastic sheets.

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Prior to investing in factory made solar panels I considered making my own.

Then I looked at: Off the shelf or Self Installed Systems

Also see: DIY Solar Electric Projects

Solar Heating Panels:

It seemed a simple and relatively cheap thing to make after all, surely a solar panel was little more than a box with some copper tubes painted black, a sheet of glass on the front and pipes to the heating system.

But:

Then you have to add the means of putting the heat into the heating system, so perhaps either a pre-heat cylinder or a dual coil cylinder which is hardly a DIY option.

Final plans were for a pre-heat system.

This was going to be a home made panel which would heat a simple single hot water tank which would be placed immediately before the proper hot water tank and act to pre-heat the water, thus taking some of the strain off the boiler. For pumping, I had planned to use a 12 volt solar powered pump so that when the sun was up an dteh panels being warmed, the pump would run.

One of the main reasons I never got round to doing it was lack of time - I was renovating / buidling a house and there were other priorties.

Even so, I had no idea what amount of heat I would be generating. Then there was the consideration of how to mount it on the roof; how big it should be; how to get the pipes through the roof; what sort of pump and pump controls to use; any electronics; perhaps overheating! and most importantly, how long it would last!

Other considerations with regard to going DIY would be the potential adverse effect on my house with what might end up being an effective but ugly lump on the roof. Even so, as soon as time allows, I will have a go, after all, a pre-heat system is not going to adversely effect the existing installed system.


DIY Solar Panels. Have a look at Matt Little's DIY domestic solar water heating system, one of the better self built systems and well illustrated. Also see Matt's links to other projects including a solar cooker and electricity generating excercise cycle.


Self Install Solar Hot Water: Looking at self install, the solar water heating industry at the moment seems to favour a package that includes - sales/marketing/product and installation, each part yealding that much more profit. I'm sure the components can be bought for most systems but see:

The Sammler Solar hot water system, about £2,200 including a new twin coil hot water cylinder


solar cookerReally interesting website showing how to get things free and giving an insight into how to make clever devices for really low prices. Includes solar oven described, along with more advanced projects such as a hydrogen generator, ice maker, and how to get free stuff, though aimed more at the US market.

 

Below is a list of web links that describe how to make a solar panel, these are provided for interest only.

Build Your Own Solar Water Heating Panel

Solar Solutions: Photovoltaic Panels - from DIYnet

Comments about the Building regs and Solar Water Heating

A solar water heating system for swimming pools

A selection of solar ideas from "The Toolkit"

A home made solar shower