Willamette, HS DC Voltage of PV Array on a 60³ Tilt Facing South Willamette, HS Hourly Average DC Voltage of PV Array on a 60³ Tilt Facing South For 2002 to 2013 Latitude: 44.08 degrees Longitude: 123.17 degrees Altitude: 140 meters Mon\Hr 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Total Jan 0.2 0.2 0.2 0.2 18.8 86.3 106.7 109.4 109.2 109.1 108.5 108.1 104.7 76.0 9.3 0.2 0.2 0.2 947.5 Feb 0.2 0.2 0.2 3.1 66.3 115.6 119.9 119.0 118.0 117.0 116.8 117.0 116.6 112.3 60.1 1.5 0.2 0.2 1184.2 Mar 0.3 0.3 1.3 49.5 120.9 131.7 129.3 128.1 127.6 126.1 125.7 126.0 126.6 125.6 111.6 27.9 0.3 0.3 1459.1 Apr 0.2 0.6 41.0 115.3 129.4 129.6 127.8 125.6 123.5 122.0 122.0 123.1 124.6 124.2 120.5 83.8 6.9 0.3 1620.4 May 0.2 16.9 95.8 123.7 124.9 125.0 122.6 120.2 118.3 116.9 117.4 117.8 119.3 119.8 117.8 110.3 44.6 0.5 1712.1 Jun 0.3 33.1 104.1 121.3 121.9 120.9 119.3 116.8 114.7 113.5 112.8 114.0 115.6 115.9 114.1 111.4 76.9 5.9 1732.6 Jul 0.3 20.8 94.9 118.9 120.9 120.3 117.8 114.9 112.1 110.4 109.9 111.2 112.9 114.2 111.9 110.4 73.9 4.6 1680.2 Aug 0.3 1.9 58.1 115.5 120.2 119.6 116.9 112.9 110.0 108.3 108.2 109.3 111.3 113.1 111.3 97.4 25.2 0.3 1539.8 Sep 0.3 0.3 14.5 96.2 121.5 121.1 117.8 114.2 111.3 109.6 109.6 110.8 112.9 113.2 102.9 35.7 0.5 0.3 1392.5 Oct 0.2 0.2 0.5 43.6 111.6 121.3 120.0 117.9 116.6 115.1 114.5 115.4 115.8 107.2 42.6 0.7 0.2 0.3 1243.8 Nov 0.2 0.2 0.2 4.1 67.9 115.3 122.2 121.5 120.6 120.1 119.6 118.0 111.6 65.2 2.1 0.2 0.2 0.2 1089.7 Dec 0.2 0.2 0.2 0.2 24.3 97.1 119.6 122.6 122.7 121.9 122.1 120.1 109.4 51.2 0.6 0.2 0.2 0.2 1013.1 Values in Total Volts Willamette, HS Daily Average DC Voltage of PV Array on a 60³ Tilt Facing South For 2002 to 2013 Latitude: 44.08 degrees Longitude: 123.17 degrees Altitude: 140 meters Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Yearly 2002 ---- ---- ---- 869.6* 871.2 896.0 847.9 785.9 715.5 638.4 555.7 462.9 ---- 2003 494.7 634.0 713.6 812.9 867.7 916.3 928.8 821.5 728.7 617.8 521.9 468.8 710.7 2004 501.0 592.9 688.0 767.2 827.3 846.5 821.6 756.9 692.3 604.7 533.9 468.5 675.0 2005 517.6 601.4 680.6 768.0 808.9 858.5 819.7 764.0 701.6 613.9 529.4 468.9 677.9 2006 487.2 614.8 681.5 763.2 823.4 846.3 816.8 765.4 688.7 626.9 506.8 484.9 675.5 2007 532.9 588.9 679.6 768.9 821.8 856.4 817.7 763.8 685.3 613.4 523.1 467.5 676.9 2008 499.1 595.7 687.0 777.0 814.1 837.5 794.1 731.7 668.3 596.8 503.1 465.4 664.1 2009 507.2 580.0 662.5 738.0 798.0 809.2 780.9 726.6 665.3 590.1 523.2 472.3 654.6 2010 478.6 559.8 648.5 739.3 798.8 822.1 789.4 728.9 655.6 582.1 499.5 458.9 647.1 2011 535.5* 3334.7* 3557.9 4008.9 4340.5 4461.0 4302.0 3928.7 3536.8 3180.8 2834.7 2660.6 3386.7 2012 2741.5 3128.5 3562.6 3966.1 4297.8 4407.8 4246.9 3858.5 3487.7 3122.7 2772.2 2634.1 3518.9 2013 2771.2 3134.1 3504.7 3904.5 4245.5 4250.1 4263.9 3864.1 3487.9 3147.6 2790.5 2661.2 3503.1 Average 915.1 1305.9 1460.6 1573.6 1692.9 1734.0 1685.8 1541.3 1392.8 1244.6 1091.2 1014.5 1387.3 % SD 99 93 92 91 93 92 93 92 91 92 94 97 91 Values in average daily Total Volts * Less than 15 days of data in month. Univ. of Oregon Solar Radiation Monitoring Lab.