Kam spėlioti jei yra skaičiai: http://eosweb.larc.nasa.gov/sse/RETScreen/

Pvz.:
Latitude 55  / Longitude 24  was chosen.
   	Unit 	Climate data location
Latitude 	°N 	55
Longitude 	°E 	24
Elevation 	m 	80
Heating design temperature 	°C 	-9.52
Cooling design temperature 	°C 	23.13
Earth temperature amplitude 	°C 	17.95
Frost days at site 	day 	127
Month 	Air temperature 	Relative humidity 	Daily solar radiation - 
horizontal 	Atmospheric pressure 	Wind speed 	Earth temperature 	Heating 
degree-days 	Cooling degree-days
   	°C 	% 	kWh/m2/d 	kPa 	m/s 	°C 	°C-d 	°C-d
January 	-4.0 	83.9% 	0.70 	100.1 	3.8 	-5.5 	685 	0
February 	-3.9 	82.3% 	1.41 	100.2 	3.4 	-5.0 	621 	0
March 	-0.0 	77.8% 	2.63 	100.2 	3.4 	-0.6 	558 	0
April 	6.7 	68.2% 	3.89 	100.1 	3.2 	6.8 	340 	20
May 	12.9 	59.7% 	5.33 	100.2 	3.0 	13.6 	172 	98
June 	16.3 	61.5% 	5.42 	100.0 	3.0 	17.1 	76 	180
July 	18.6 	62.0% 	5.19 	100.1 	2.9 	19.4 	35 	256
August 	18.0 	62.5% 	4.44 	100.2 	3.0 	18.5 	42 	242
September 	12.9 	69.0% 	2.86 	100.1 	3.4 	12.8 	158 	95
October 	7.4 	76.6% 	1.55 	100.3 	3.4 	6.7 	325 	20
November 	1.1 	82.8% 	0.79 	100.3 	3.4 	0.2 	508 	0
December 	-3.2 	84.4% 	0.53 	100.2 	3.5 	-4.5 	660 	0

Annual 	6.9 	72.6% 	2.90 	100.2 	3.3 	6.6 	4180 	911
Measured at (m) 	  	  	  	  	10.0 	0.0

Mohammedas rašė:
> tai reziume,- kolektorius vasarai, SS ziemai, o saltai ziemai malkos :) taip 
> ir padarysiu... nors antroj ziemos pusej buna islenda saule... ir Lietuvoj 
> temperatura iki 0C ilgai buna, tai SS manau bus efektyvus didesne dali 
> laiko...
> reikia dabar viska suprojektuoti...
>