Solar Power Measurements
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NameDirections on how to use, and a presentation here:DarioStephen Song@wlanslovenija
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Emailhttps://docs.google.com/presentation/d/1pp-6tiJP4pRhAku2m871oaqemm6QEEngR5pvC23FEss/edit?usp=sharing
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LocationMonterrey, MexicoSlovenia
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DeviceTim's Nanostation M2 & Raspberry Pi 3Gille's device hereBrian Kam's device hereDennis S's device hereJohan's device hereMunif's device hereGreg G's device hereJon M's device hereTill's device hereMark's device heredragansky's device hereChacon's Device HereManuel's Device HereArthur's Device HereMaxime's Device HereDarios' Device HereCarlos' Device HereAnne Serine's Device HereMatthew's Device Hereshailendra's Device HereAbiodun's Device HereAhmad's Device Herejecb solutions's Device HereManik's Device HereFathu's Device HereOuternet Receiver + TP Link 703NOuternet ReceiverOuternet Receiver + Picostation M2 HPRowan's Device HereTobia's Device HereFabián's Device HereYour Device HereYour Device HereYour Device HereYour Device HereCamera YOUR DEVICE HEREROCKET M2Mystery 40 watt consuming deviceredd_beardd's devicesVoCireMacBook ProChurch X 213.5 W Picostation + NanoBridgeNanoBridgeTP-Link 703NRaspberry Pi Model BRaspberry Pi Model B w/ Switching RegulatorVillage Telco CatbertKoruza Wireless Optical Device
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Power consumption7.5Watts1.5Watts5Watts5Watts4Watts4Watts3Watts2Watts90Watts8Watts5Watts9Watts5Watts17Watts2Watts1000Watts?Watts10Watts2Watts2Watts2Watts2Watts2Watts2Watts16Watts4.4928Watts3.712Watts7.2064Watts2Watts3Watts2Watts2Watts24Watts24Watts5Watts100Watts8Watts6.5Watts40Watts5Watts1.0548Watts30Watts20Watts5Watts1.0049Watts2.4Watts1.8Watts0.72Watts1.11
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Max days without sun4days2days2days2days2days2days2days2days1days2days3days3days3days3days2days2days2days2days2days2days2days2days2days2days0.5days2days2days2days3days2days3days3days3days3days2days3days2days2days2days3days31days5days5days2days2days4days2days2days3
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Sun-hours per day in winter (see image below)7hours6hours4.3hours4.3hours4.3hours4.3hours4.3hours4.3hours4.3hours4.3hours4.3hours4.3hours4.3hours4.3hours6hours6hours6hours6hours6hours6hours6hours6hours6hours6hours7hours6hours6hours6hours5hours3hours5hours5hours5hours5hours3hours5hours5hours6hours8hours5hours88hours1hours1hours11hours5hours8hours8hours6hours4
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Hours load is powered on per day14hours12hours24hours24hours24hours24hours24hours24hours9hours24hours24hours24hours24hours24hours24hours24hours24hours24hours24hours24hours24hours24hours24hours24hours24hours24hours24hours24hours24hours24hours24hours24hours24hours24hours1hours24hours24hours24hours24hours24hours8hours8hours8hours18hours24hours24hours12hours24hours24hours24
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Watt rating of panels used5Watts100Watts100Watts100Watts100Watts100Watts577Watts577Watts577Watts577Watts577Watts577Watts577Watts40Watts200Watts40Watts40Watts40Watts40Watts40Watts40Watts40Watts40Watts40Watts40Watts40Watts40Watts40Watts50Watts40Watts40Watts100Watts100Watts30Watts80120Watts10010040
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Daily energy usage105Wh18Wh120Wh120Wh96Wh96Wh72Wh48Wh810Wh192Wh120Wh216Wh120Wh408Wh48Wh24000Wh#VALUE!Wh240Wh48Wh48Wh48Wh48Wh48Wh48Wh384Wh107.8272Wh89.088Wh172.9536Wh48Wh72Wh48Wh48Wh576Wh576Wh5Wh2400Wh192Wh156Wh960Wh120Wh8.4Wh384Wh240Wh360Wh120Wh24.1176Wh28.8Wh43.2Wh17.28Wh26.64
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Required battery capacity to reduce chance of over-discharge840Wh72Wh480Wh480Wh384Wh384Wh288Wh192Wh1620Wh768Wh720Wh1296Wh720Wh2448Wh192Wh96000Wh#VALUE!Wh960Wh192Wh192Wh192Wh192Wh192Wh192Wh384Wh431.3088Wh356.352Wh691.8144Wh288Wh288Wh288Wh288Wh3456Wh3456Wh20Wh14400Wh768Wh624Wh3840Wh720Wh50.4768Wh12000Wh3600Wh480Wh96.4704Wh230.4Wh172.8Wh69.12Wh159.84
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@12V35Ah6Ah40Ah40Ah32Ah32Ah24Ah16Ah135Ah64Ah60Ah108Ah60Ah204Ah16Ah8000Ah#VALUE!Ah80Ah16Ah16Ah16Ah16Ah16Ah16Ah32Ah35.9424Ah29.696Ah57.6512Ah24Ah24Ah24Ah24Ah288Ah288Ah1.666666667Ah1200Ah64Ah52Ah72Ah60Ah4.264Ah600Ah150Ah40Ah8.0392Ah19.2Ah14.4Ah5.76Ah13.32
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Charge from 50% to full:420Wh36Wh240Wh240Wh192Wh192Wh144Wh96Wh810Wh384Wh360Wh648Wh360Wh1224Wh96Wh48000Wh#VALUE!Wh480Wh96Wh96Wh96Wh96Wh96Wh96Wh192Wh215.6544Wh178.176Wh345.9072Wh144Wh144Wh144Wh144Wh1728Wh1728Wh10Wh7200Wh384Wh312Wh1920Wh360Wh25.2384Wh3200Wh1800Wh240Wh48.2352Wh115.2Wh86.4Wh34.56Wh79.92
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Run you device for a day:105Wh18Wh120Wh120Wh96Wh96Wh72Wh48Wh810Wh192Wh120Wh216Wh120Wh408Wh48Wh24000Wh#VALUE!Wh240Wh48Wh48Wh48Wh48Wh48Wh48Wh384Wh107.8272Wh89.088Wh172.9536Wh48Wh72Wh48Wh48Wh576Wh576Wh5Wh2400Wh192Wh156Wh960Wh120Wh8.4384Wh720Wh360Wh120Wh24.1176Wh28.8Wh43.2Wh17.28Wh26.64
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Total power generation required per day:525Wh54Wh360Wh360Wh288Wh288Wh216Wh144Wh1620Wh576Wh480Wh864Wh480Wh1632Wh144Wh72000Wh#VALUE!Wh720Wh144Wh144Wh144Wh144Wh144Wh144Wh576Wh323.4816Wh267.264Wh518.8608Wh192Wh216Wh192Wh192Wh2304Wh2304Wh15Wh9600Wh576Wh468Wh2880Wh480Wh33.6768Wh720Wh2160Wh360Wh72.3528Wh144Wh129.6Wh51.84Wh106.56
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Size of panel required @ 85% charge controller efficiency88.23529412Watts10.58823529Watts98.49521204Watts98.49521204Watts78.79616963Watts78.79616963Watts59.09712722Watts39.39808482Watts443.2284542Watts157.5923393Watts131.3269494Watts236.3885089Watts131.3269494Watts446.5116279Watts28.23529412Watts14117.64706Watts#VALUE!Watts141.1764706Watts28.23529412Watts28.23529412Watts28.23529412Watts28.23529412Watts28.23529412Watts28.23529412Watts96.80672269Watts63.42776471Watts52.40470588Watts101.7374118Watts45.17647059Watts84.70588235Watts45.17647059Watts45.17647059Watts542.1176471Watts542.1176471Watts5.882352941Watts2258.823529Watts135.5294118Watts91.76470588Watts423.5294118Watts112.9411765Watts4.941176471112.9411765Watts8470.588235Watts2541.176471Watts38.5026738Watts17.02418824Watts21.17647059Watts19.05882353Watts10.16470588Watts31.34117647
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Number of Panels Required2.117647059Panels0.9849521204Panels0.9849521204Panels0.7879616963Panels0.7879616963Panels0.5909712722Panels0.06828090956Panels0.7681602325Panels0.2731236382Panels0.2276030319Panels0.4096854574Panels0.2276030319Panels0.7738503083Panels0.7058823529Panels70.58823529Panels#VALUE!Panels3.529411765Panels0.7058823529Panels0.7058823529Panels0.7058823529Panels0.7058823529Panels0.7058823529Panels0.7058823529Panels2.420168067Panels1.585694118Panels1.310117647Panels2.543435294Panels1.129411765Panels1.694117647Panels1.129411765Panels1.129411765Panels5.421176471Panels5.421176471Panels0.1960784314Panels28.235294121.129411765Panels
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IMPORTANT NOTE:Per Station Requirements to power both devices:
100 Watt solar panel
60 Ah battery
AbiodunYou will always have at least half a day without sun (night time)
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Visit this site or search to get accurate worst case sun-hours per day for your location0.8470588235PanelsRaspberry Pi w/ TP-Link USB Wireless adapter w/ 3 mumble clients consumes ~5.3 Watts. See column AH.
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Directions on how to use, and a presentation here:Notes: An 8kW system to fully charge a 600Ah battery bank in 1 hour, once a week! Kind of a crazy design. This would need careful battery selection and balancing and probably would work best at ~48V DC.
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https://docs.google.com/presentation/d/1pp-6tiJP4pRhAku2m871oaqemm6QEEngR5pvC23FEss/edit?usp=sharing
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Edit Notes:
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6/14/2014I added an editable "Hours load is powered on per day" row. I am using a Real Time Clock Module + Relay Module to turn devices on for a set number of hours.
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2/3/2015Added Panel Wattage variable, thanks for the idea!
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