1) Example: Calculation of energy-saving, by solar thermal installation, for a 4 bedrooms-home in the province of Málaga

 

It applies the current valid regulation, Building Technical Code

 


- Domestic hot water needs:


Single-family: 30 liters of hot water/person and day


Number of bedrooms: 4


Daily total consumption: 180 liters of domestic hot water (60°C)


Annual total power: 12250 MJ

 

 

-Considerations for calculation of heat insolation:

 

Province of Malaga: climate zone IV


Orientation: Predominantly South, from + 30° to - 30°


Flat solar collector slope: between 30° and 45°

 

 

-Energy-saving:

 

Kit of first marks composed of two flat solar collectors and 300 liter tank. Fully assembled and installed. Variable prices. To consult.


Energy saved annually (80%): 9.800 MJ


Auxiliary power (20%): 2.450 MJ


Butane gas price*: 1,156 €/kg

 

(*Calculated price according to BOE, 21.11.2017. Included 21% tax and special tax for hydrocarbon fuels.)


(Calorific value of butane gas: 49.608 kJ/kg)


First year savings: 9.800MJ = 197,55kg = 228,4€ at the first year


Amortization equipment **: 6,8 years


(** It is considered a kit of 2.100€ with taxes. It is considered the rise of the annual 10% of the price of butane gas)


Saving at the end of the minimum life-period of 20 years: 10.982€


Due to the increase in the price of gas is becoming more pronounced, the SAVINGS will be EVEN MUCH MORE.

 

 

-Saving of CO2 emissions:

 

9800MJ from butane gas = 197.5kg of butane gas


197.5kg of butane gas, equivalent to 585.4kg of CO2 every year, which will not be dumped into the atmosphere.

VECTIO SOLARIS, S.L.

NIF: B93570919

 

GERMANY:

Adolf-Baeyer-Damm, 4

81735 Munich

Tel.: 0049 (0) 89 124 72300

 

SPAIN:

Avenida Sor Teresa Prat, 76

29004 Malaga

Tel.: 0034 952 33 17 82

 

E-Mails:

tecnicos@vectiosolaris.com

administracion@vectiosolaris.com

 


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