Estimated Water Production from
SQFlex Submersible Pumps


Use this table below to choose a pump. The left column shows total head in feet and meters. The top row shows the array wattage/number and suggested type of modules. Boxes show seasonal pump performance and maximum flow as shown here.

Select the row with the head (total lift) that most closely matches your application. Move across the row to the column that contains the desired daily volume or peak flow rate. Note the pump model in that block and wattage of the PV array in that column.

For example, an array of 255 watts with 125 feet of head:
6 SQF-2 = pump model
1,495 = estimated daily summer volume (GPD)
891 = estimated daily winter volume (GPD)
3 = peak flow rate (gpm)

Note: The daily volume and flow calculations are based on 38 degrees north latitude location, fixed array tilt of 38 degrees and 4.5 kWH/m2 (POA) winter, and 7.5 kWH/m2 (POA) summer solar insolation. The pump model is optimized for summer operation. Up to 40% more water can be pumped in the summer if the array is on a tracking mount. The output can vary with different locations and years, and is not guaranteed.
Estimated Water Production from SQFlex Pumps
(summer and winter volumes and peak flow rates based on solar array wattage)
Head Module watts 85 85 85 85 175 175 175 175
feet X (# of modules) 3 4 5 6 4 5 8 10
(m) =(Array watts) 255 340 425 510 700 880 1400 1750
  Model 60 SQF-3 60 SQF-3 60 SQF-3 60 SQF-3 60 SQF-3 60 SQF-3 60 SQF-3 60 SQF-3
6
(2)		 7.5 kWh/m2 17,037 21,485 24,918 27,917 31,023 36,797 39,138 45,690
4.5 kWh/m2 12,520 15,986 18,732 21,256 25,518 29,229 33,549 39,613
Max flow 34 41 47 52 55 65 66 76
  Model 40 SQF-5 40 SQF-5 40 SQF-5 40 SQF-5 60 SQF-3 60 SQF-3 60 SQF-3 60 SQF-3
25
(8)		 7.5 kWh/m2 6,834 9,853 12,466 15,113 18,582 25,358 29,804 36,941
4.5 kWh/m2 3,944 6,219 8,305 10,319 12,489 17,744 23,459 29,319
Max flow 16 22 27 32 41 52 54 65
  Model 11 SQF-2 11 SQF-2 11 SQF-2 11 SQF-2 25 SQF-2 40 SQF-2 40 SQF-2 40 SQF-2
50
(15)		 7.5 kWh/m2 3,284 4,406 5,020 5,499 9,120 14,171 17,910 23,566
4.5 kWh/m2 2,195 3,061 3,803 4,375 6,170 9,060 13,517 18,316
Max flow 7 9 10 10 20 31 33 44
  Model 11-SQF-2 11-SQF-2 11-SQF-2 11-SQF-2 11-SQF-2 25-SQF-2 25-SQF-2 40-SQF-2
75
(23)		 7.5 kWh/m2 2,524 3,557 4,381 4,910 5,352 8,805 10,871 15,732
4.5 kWh/m2 1,588 2,343 3,035 3,684 4,314 5,703 8,387 11,880
Max flow 6 8 9 10 10 19 21 31
  Model 11 SQF-2 11 SQF-2 11 SQF-2 11 SQF-2 11 SQF-2 11 SQF-2 16 SQF-2 16 SQF-2
100
(30)		 7.5 kWh/m2 1,824 2,708 3,552 4,202 4,794 5,503 7,768 10,016
4.5 kWh/m2 1,015 1,648 2,277 2,868 3,667 4,445 6,036 7,875
Max flow 4 6 8 9 9 10 15 18
  Model 6SQF-2 6SQF-2 11-SQF-2 11-SQF-2 11-SQF-2 11-SQF-2 16-SQF-2 16-SQF-2
125
(38)		 7.5 kWh/m2 1,495 1,977 2,825 3,534 4,268 5,071 6,445 8,792
4.5 kWh/m2 891 1,370 1,704 2,248 3,012 3,988 4,930 6,823
Max flow 3 4 6 8 9 10 13 16
  Model 6 SQF-2 6 SQF-2 6 SQF-2 6 SQF-2 11 SQF-2 11 SQF-2 11 SQF-2 16 SQF-2
150
(46)		 7.5 kWh/m2 1,319 1,847 2,127 2,380 3,770 4,651 5,121 7,530
4.5 kWh/m2 758 1,179 1,591 1,888 2,506 3,551 4,180 5,771
Max flow 3.1 4.2 4.5 4.6 8.3 9.3 9.3 14.4
  Model 6 SQF-2 6 SQF-2 6 SQF-2 6 SQF-2 11 SQF-2 11 SQF-2 11 SQF-2 11 SQF-2
175
(53)		 7.5 kWh/m2 1,133 1,684 2,008 2,250 3,265 4,233 4,787 5,393
4.5 kWh/m2 624 1,009 1,407 1,741 2,029 3,058 3,874 4,450
Max flow 2.7 3.8 4.4 4.5 7.4 8.9 8.9 9.1
  Model 6 SQF-2 6 SQF-2 6 SQF-2 6 SQF-2 6 SQF-2 11 SQF-2 11 SQF-2 11 SQF-2
200
(61)		 7.5 kWh/m2 952 1,514 1,888 2,114 2,352 3,807 4,435 5,064
4.5 kWh/m2 493 867 1,207 1,583 1,903 2,552 3,536 4,153
Max flow 2.3 3.5 4.3 4.5 4.5 8.5 8.4 8.8
  Model 3 SQF-2 3 SQF-2 6 SQF-2 6 SQF-2 6 SQF-2 6 SQF-2 11 SQF-2 11 SQF-2
250
(76)		 7.5 kWh/m2 698 905 1,578 1,875 2,125 2,483 3,733 4,344
4.5 kWh/m2 422 644 890 1,183 1,639 2,017 2,816 3,493
Max flow 1.6 1.9 3.7 4.3 4.3 4.5 7.4 8.1
  Model 3 SQF-3 3 SQF-3 3 SQF-3 3 SQF-3 6 SQF-2 6 SQF-2 6 SQF-2 11 SQF-2
300
(91)		 7.5 kWh/m2 609 865 1,015 1,132 1,884 2,253 2,482 3,453
4.5 kWh/m2 355 555 750 890 1,282 1,785 2,050 2,700
Max flow 1.4 2.0 2.1 2.2 4.2 4.4 4.3 6.9
  Model 3 SQF-3 3 SQF-3 3 SQF-3 3 SQF-3 6 SQF-2 6 SQF-2 6 SQF-2 6 SQF-2
360
(110)		 7.5 kWh/m2 535 801 953 1,072 1,583 2,010 2,260 2,541
4.5 kWh/m2 294 484 669 827 918 1,458 1,839 2,108
Max flow 1.3 1.8 2.1 2.2 3.8 4.3 4.2 4.3
Model 3 SQF-3 3 SQF-3 3 SQF-3 3 SQF-3 3 SQF-3 3 SQF-3 3 SQF-3 3 SQF-3
420
(128)		 7.5 kWh/m2 467 724 900 1,013 1,122 1,284 1,314 1,439
4.5 kWh/m2 247 423 599 762 910 1,062 1,109 1,239
Max flow 1.1 1.7 2.0 2.1 2.1 2.2 2.2 2.3
Model 3 SQF-3 3 SQF-3 3 SQF-3 3 SQF-3 3 SQF-3 3 SQF-3 3 SQF-3 3 SQF-3
500
(152)		 7.5 kWh/m2 367 606 809 931 1,053 1,211 1,257 1,379
4.5 kWh/m2 180 337 489 651 828 990 1,052 1,186
Max flow 1.0 1.4 1.9 2.1 2.1 2.2 2.2 2.2
Model   3 SQF-3 3 SQF-3 3 SQF-3 3 SQF-3 3 SQF-3 3 SQF-3 3 SQF-3
600
(183)		 7.5 kWh/m2   406 612 779 898 1,066 1,146 1,260
4.5 kWh/m2   190 321 454 664 855 952 1,063
Max flow   1.0 1.5 1.9 1.9 2.0 2.0 2.0