Solar Water Heating

 

I have been asked on many occasions what the benefits are and cost effectiveness of solar panels to heat domestic hot water or a swimming pool etc.

The sun is the most powerful source of energy available, it freely provides 1kw (1000 watts) which is enough to light 10 x 100w light bulbs for every square metre of land on earth. Solar power is a clean, environmentally friendly form of energy, there is no toxic residue and there are no emissions. Its life expectancy is infinite whereas fossil fuels are expected to run out in an estimated 20 -30 years. Harnessing this power is not difficult; it has even been brought down to a DIY level by many companies. This light energy can be collected onto solar panels which, when connected to a heating system, can provide 50 to 60% of the hot water requirements for a normal household or heat a pool up by 3 – 5 degrees extending its usable period.


Domestic solar panels are generally installed on a South or South East facing roof slope, the cost of a solar installation normally varies between 2,000 and 8,000 euro’s depending on the size and type of installation. The down side is that required panel sizes are still fairly large and manufacturers recommend that these panels are placed on the roof of the property, this is not only unsightly but the roof slope may not be of the right pitch or facing in the right direction to fully harness the suns full potential. With regard to pool heating, the panel area required usually equates to 50% of the surface area of the pool, which is a lot of panels. The manufacturers usually have a small print proviso written into their literature stating that their heat gain calculations do not take into account any wind or breeze across the surface of the pool which would reduce the water temperature and that a thick insulated pool cover must be placed over the pool for a minimum 10 hours every night.

Therefore to summarise – Would you ever be fully satisfied with your purchase? Would you ever see a return on your money?  The answer is, I don’t know, I do not profess to be an expert in solar energy but my advice is to not rush out and buy these panels, wait a few years for the ever increasing advancements in technology to create a smaller more cost efficient panel, one that will give a guaranteed return on your investment.

John Phillips (F.I.A.S. F.A.B.E. M.I.B.C.O. F.F.B. M.R.S.H. C.M.W.O.B.O. M.B.I.M)
Construction Buena Vista

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Construction Buena Vista
Urb. Palmeria. Orba 03790

 

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0034 965 577 464 (office)

 

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Buena Vista Villas s.l.

Urb. Palmeria. Orba 03790

 

Please call us on

 

0034 965 577 464 (office)

 

0034 629 554 561 (mobile)

 

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