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Prediction of electrical energy by photovoltaic devices in urban situations By. R.C. Ott July 2011

Prediction of electrical energy by photovoltaic devices in urban situations By. R.C. Ott July 2011. General model to compute the electric output of your Solar panels. Where you live. Find out your geographic location and sight to the celestial sphere. Not each place on Earth is convenient.

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Prediction of electrical energy by photovoltaic devices in urban situations By. R.C. Ott July 2011

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  1. Prediction of electrical energy by photovoltaic devices in urban situations By. R.C. Ott July 2011

  2. General model to compute the electric output of your Solar panels

  3. Where you live Find out your geographic location and sight to the celestial sphere

  4. Not each place on Earth is convenient The maximum of solar irradiation is a fixed astronomical amount and is dependend of your geographical location.

  5. How about your panel azimuth and inclination ? Detailed installation properties Orientation of your solar panels (= angles α and β) are importantfor best performances

  6. How much Solar radiadion ? Realize that usefull sunlight comes from any direction , but most quantity comes from DIRECT irradiation

  7. Sky obstructions limits your solar energy capacity Your (urban) local sky line is mostly not a straight line..

  8. An all sky fish-eye lens as equipment to measure your local sky-line

  9. Or use a drone to optimize your your panel location if the roof is difficult to enter

  10. This fish-eye lens can tell you more about your location

  11. The fish-eye photo is equidistant processed by FESA

  12. Daily direct sun light over a total year … and imported to Tabulae Solis (In this case, the trees reduce you Solar panel output capacity)

  13. Example of TS data output file to examine your optimal installation and (yearly) capacity prognosis Date Sun-rise Sun-set Hor.Irr. Inc.Irr. Energy ----------------------------------------------------------- 12-06-2011 06:08 18:48 2,24 1,94 0,76 19-06-2011 06:09 18:50 2,26 1,96 0,77 26-06-2011 06:10 18:51 2,39 2,10 0,83 03-07-2011 06:12 18:52 2,27 2,00 0,78 10-07-2011 06:14 18:53 2,19 1,93 0,76 17-07-2011 06:15 18:53 2,06 1,85 0,73 24-07-2011 06:17 18:52 1,95 1,80 0,70 31-07-2011 06:18 18:51 1,83 1,73 0,68 07-08-2011 06:18 18:49 1,73 1,67 0,65 14-08-2011 06:21 18:46 1,63 1,63 0,64 21-08-2011 06:33 18:43 1,57 1,65 0,64 28-08-2011 06:44 18:40 1,46 1,58 0,62 04-09-2011 06:55 18:36 1,39 1,63 0,63 11-09-2011 07:07 18:32 1,13 1,33 0,52 18-09-2011 07:18 18:27 0,93 1,15 0,45 25-09-2011 07:30 18:23 0,89 1,23 0,48 02-10-2011 07:42 18:19 0,77 1,15 0,45 09-10-2011 07:53 18:15 0,69 1,12 0,44 16-10-2011 08:05 18:12 0,61 1,09 0,42 23-10-2011 08:18 18:09 0,53 1,02 0,40 30-10-2011 07:30 17:07 0,44 0,94 0,37 06-11-2011 07:43 17:03 0,35 0,81 0,32 13-11-2011 07:56 16:51 0,26 0,60 0,23 20-11-2011 08:08 16:42 0,21 0,52 0,20 27-11-2011 08:19 16:35 0,18 0,43 0,17 04-12-2011 08:29 16:30 0,14 0,29 0,11 11-12-2011 08:38 16:27 0,12 0,25 0,10 18-12-2011 08:44 16:28 0,11 0,22 0,09 25-12-2011 08:48 16:31 0,11 0,21 0,08 ----------------------------------------------------------- Cum. irradiance on horizontal plane : 391,00 kWh/m² (1406,1 MJ/m²) Cum. irradiance on (inclinated) panel : 443,00 kWh/m² (1593,2 MJ/m²) Total expected energy by panels: 174,00 kWh (625,4 MJ) NOTES: Irradiation values in kWh/m².d , expected energy in kWh/d and all rising/setting times with with respect to the (inclinated) solar panel surface SOLAR PANEL CALENDAR ( REAL SKY ) DATE: 06-08-2011 TIME: 12:41:06 Alt = 0 m ; Time zone = 1:0 hour Daylight s.time Location: North 52°06'00" ; East 5°07'00" ; TL(AM2)/Month : 2,75 2,75 3,75 3,75 3,75 3,75 4,25 4,75 4,25 3,75 2,75 2,75 SOLAR PANEL MOUNT: Heading = 154°45' ; Inclination = 45°00' ; Yaw = 0°00' ; Alt. =6 Date Sun-rise Sun-set Hor.Irr. Inc.Irr. Energy ----------------------------------------------------------- 02-01-2011 08:48 16:39 0,11 0,22 0,09 09-01-2011 08:46 16:48 0,13 0,28 0,11 16-01-2011 08:41 16:58 0,17 0,41 0,16 23-01-2011 08:33 17:10 0,20 0,47 0,19 30-01-2011 08:24 17:23 0,28 0,70 0,28 06-02-2011 08:12 17:35 0,37 0,84 0,33 13-02-2011 08:00 17:38 0,44 0,90 0,36 20-02-2011 07:46 17:39 0,54 1,01 0,40 27-02-2011 07:31 17:39 0,59 1,00 0,40 06-03-2011 07:15 17:40 0,64 0,99 0,39 13-03-2011 07:00 17:40 0,71 1,05 0,41 20-03-2011 06:43 17:39 0,87 1,19 0,47 27-03-2011 07:27 18:39 0,93 1,18 0,47 03-04-2011 07:11 18:39 1,14 1,35 0,53 10-04-2011 06:55 18:39 1,38 1,59 0,63 17-04-2011 06:39 18:39 1,48 1,62 0,64 24-04-2011 06:25 18:39 1,58 1,68 0,66 01-05-2011 06:12 18:39 1,65 1,64 0,65 08-05-2011 06:09 18:40 1,75 1,68 0,66 15-05-2011 06:07 18:41 1,94 1,83 0,72 22-05-2011 06:07 18:43 2,06 1,88 0,74 29-05-2011 06:06 18:45 2,06 1,81 0,71 05-06-2011 06:07 18:46 2,33 2,07 0,81

  14. APPLICATIONS ASTRONOM : Astronomical (solar) data TABUSOL : Computing solar panel energy production FESA : Measure and compute your local horizon R.C.Ott http://dutch.nl/rcott/astrohome.htm

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