Position of the Sun by
Spreadsheet
for a year
download
Select the table 'input':  
Input (red frames): 1) hour UT, min 

The table calc performs the calculations, using a lot of auxiliary variables. It should be neglected.  
Select elev az to see data and diagrams of elevation and azimuth.  
Select E o T for data and diagrams of the Equation of Time.  
Select declin dist to see data and diagrams of the declination and distance.  
Select orbit to see data and a diagram of the ecliptic orbit. 
Comparing
the results "elev" (airless) of my spreadsheet with the 4
decimal places of HORIZONS
WebInterface
(NASA JPL) the mean absolute error is (0,0036 ± 0,0017)°.
Azimuth is measured North(0°) > East(90°) > South(180°) > West(270°) > North (360°).
Download
my speadsheet: sun_year.ods (LibreOffice, recommended, Windows, Mac) updated! 

Die Zeitgleichung: Eine einfache Formel zu Sonnenaufgang und Untergang General
Solar Position Calculations (PDF) MICA
(Multiliyear Interactive Computer Almanac), US
Naval Observatory 