8. Station Battery Solar AC Source Home Batteries Battery Chargers

9. 12 volt 20 Ah rating 6 hrs @ 20w = 50% DOD 20 batteries @ 50% DOD= 2.40 kWh +10 % charge factor=.240 kWh 2.64 kWh needed for full recharge of 20 units Home Batteries 2.64 kWh

10. Sealed Lead Acid 7” x 3” x 6” 15 lbs High cycle life Fitted with modular connectors Home Batteries 2.64 kWh

11. Nom 48 to 12 V 72 watts 20 chargers = 1.44 kW 2.64 kW load= 1.8 hr @ 72 watt each = 2.592 kWh + 1 hr absorption= 259 additional watt/hrs Charger Eff. 87%= 370 watt/hrs 3 hrs to complete a full charge consuming 3.221 kWh Battery Chargers 3.22 kWh

12. 3 stage charging Temperature compensation capable Sealed construction SOC indicator Operation to 122 deg F 6” x 3” x 2.5” Battery Chargers 3.22 kWh

13. Storage Capacity= (2.4 kWh x 4) 9.6 kWh 3.221 kWh load= 33% DOD Energy to recharge plus 10 % conv. loss= 3.543 kWh Central Battery 3.54 kWh 4 - 12 Volt 200 Ah Deep Cycle Flooded or AGM

14. High cycle life ~ 1000 cycles @ 33% DOD Rack of four units= 5.5’ x 1’ x 1’ Combined weight of four= 516 lbs Operating temperature to 140 deg F Central Battery 3.54 kWh

15. Array power= 1680 watts Array voltage= 73.2 Vmp Array current= 23.0 Imp Array area= 21.6’ x 6.3’ Weight w/o mounting= 328 lbs 8 - 210 watts, 18.3 volts Two strings of four panels Solar

16. Station Identification City:San_Juan State:Puerto_Rico Latitude:18.43° N Longitude: 66.00° W Elevation:19 m PV System Specifications DC Rating:1.7 kW DC to AC Derate Factor:0.950 AC Rating:1.6 kW Array Type:Fixed Tilt Array Tilt:18.4° Array Azimuth:180.0°

17. Solar 8.00 kWh Avg. daily production on lowest producing month = 7.00 kWh Avg. for year = 8.00 kWh/day Battery load of 7.08 kWh (3.54 kWh x 2) represents 89% of avg. daily production Results Month Solar Radiation (kWh/m 2 / day) AC Energy (kWh) Energy Value ($) 1 5.16 233 27.73 2 5.58 228 27.13 3 6.08 274 32.61 4 5.97 261 31.06 5 5.50 245 29.16 6 5.62 245 29.16 7 5.75 257 30.58 8 5.78 257 30.58 9 5.85 251 29.87 10 5.40 241 28.68 11 4.85 210 24.99 12 4.77 214 25.47 Year 5.53 2914 346.77

18. Solar 8.00 kWh MPPT capable Nominal 6kW rating 3 stage battery charging Automatic equalization routine Battery temperature monitoring Passive cooling, no derating to 113 deg F 14” x 5” x 5” 11 lbs

19. 208 – 277 VAC input, 50-60 Hz 1 kW output, 54 VDC Constant voltage charging May be paralleled for higher power 22” x 10” 14 lbs AC Source 1 kW

20. AC 89 V 54 V Combiner box

21. 54 V LVD 14 V LVD control 54 V x 20