A grid-tie solar system means that your home is connected to the utility companys grid. Thanks again, Jim. All Rights Reserved. BatteryStuff TechWhat kind of things are you referring to? BatteryStuff TechDC Watts is the same as AC Watts. Doing so will help you calculate whether using solar power will be worth it for your unique situation. Either way your are looking at a system most would use a generator for, as a 2500 Watt load for 12hrs = 30,000 Watts! It takes into account nearly every factor to give you an estimate for your specific setup. the calculator could lean either way between two sizes, going with the larger wire size would be the smart choice. In most states, the solar panel cost per watt ranges between $2.25 and $3.25. 10% of 2AC amps = 0.4DC amps? Ampere 8.4 Your n value is definitely set higher than the efficiency of most deep cycle batteries, and I am not sure you are taking into effect actual total depletion versus real world depletion rates as a function of cell life. I want to continuously run a small remote router which runs at .24A DC from a 12v source. BatteryStuff TechSounds like a bad battery. Just wrapping my head around solar and battery drain calculations.. With 24V 32Ah battery, and 24V 5A load, doesnt this equal 3.2 hours to 50% drain?

I am looking to put aprox 6 to 9 amps of power back into the battery per day. Wow, this all makes my eyes glaze over! I wonder how or where to get the Worst Weather Factor of 1.55? Divide battery capacity by current to estimate how long itd take to charge the entire battery: 5. parallel or series is better for my system, my battery is brand new any ideas how to get the 8 hours i want for 6 11watt 230volt lights ?? These cells have following specifications Amp Hours is usually rated for 20 hours at a time. BatteryStuff TechWorst weather factor guesstimates for days with clouds, rain, fog, etc. Note: Our solar charging calculator, which takes into account more factors, estimates itd take 6.6 hours for this setup. BatteryStuff TechYou can always add more solar panels. But a 60 Watt solar panel will only deliver ~4 amps of charge an hour. Ampere 840 thank you and god bless you always. so plzz i need you to give some of ur valuable time. Im getting one as emergency back up power for a cpap machine. Save 5% off for your first order. BatteryStuff TechI understand you want to buy solar panels. Field #3: This field needs to be DC watt draw only. Concerned about burning up well. EmmeHello! My answer is this: It depends entirely on those things. The higher voltage is needed to bring the voltage up to the battery. And fill in the remaining boxes with the correct information (system voltage, what size batteries you will use, etc) and it will tell you how many batteries and solar panels you need based on the information you put in. wiring when 10-gauge will do. You just need to put in the numbers in the calculator in order to give you your answers. If your monthly electricity bill shows that your home used 800 kWh, that would be 800,000 watt-hours for the month or around 27,000 watt-hours per day (27 kilowatt-hours). Solar Air ConditionerI have read somewhere about solar calculator, but was not fully aware about how it works. Are you going to run your house directly off the solar panels during the daytime? And i am happy reading your article. HPCHi, interested in learning more about solar power, and thats how I found you.. Ive been doing some research in alternative ways of getting myself around other than gas vehicles well, I found something that uses a 78v 20ah battery, my question is, if i had a solar panel battery charging setup that had output amps of 5a, would it still be 4hrs or so? Enter 19 hours into the next box. To get more specific details, you can check an insolation map or use an insolation meter.

Using a solar cost calculator is an excellent way to figure out specific numbers for your circumstances. BoI need help. Step-by-step instructions: How to Connect a Battery to a Solar Panel. Plugging .24 into the first box works. Each home consumes a different amount of electricity based on various factors. The majority of people will need to hire professionals, which will add to their solar panel installation costs. 37V Wi Fi 24 hours a day this necessary voltage difference, and can reduce charge current to the battery by a Be realistic.

Ajmerahi there, That is not the equivalent of 1 amp per hour.

Only you can figure that out. Farouki am trying to power up 1000 watts of eneregy all of them in total are lights ,i have a 2000wat inverter and two bateries 12 volt 120ah ,my question is how many solar panel i need to charge these batteries on a daily basis or do i need to purchase more bateries my lights are on 12 hours daily , thank you e7. T = (C/((I/(C/R))^n) * (R/C)) I suggest looking at all of the equipment you want to run, add up the power ratings, and then use that information as input for our solar calculator. How to Connect a Battery to a Solar Panel, 12 volt, 30Ah lead acid battery discharged to 50%. Charge controllers regulate the current and voltage coming from solar panels to safely charge the battery. how long would it take for the grid to charge the battery 50 hz, 600v transformer Most Solar Charge Controllers will reduce your amperage to the battery by 15%. Charger controllers run at either 80% efficiency or 92% efficiency, depending on their type, which the off-grid solar calculator will factor into your result. There are also federal tax credits for installing renewable energy sources, such as solar panels. With this setup, your main objective might be to cut costs on your monthly electricity bill. you have written this for 110 Volts AC .. what will be the conversion factor if we are on 220 Volts AC ??? BatteryStuff TechBattery capacity is not a linear relationship. volt 100

Barialaihi DC amps x 12v = DC watts. The final Wattage rating, given the 10% inefficiency rate, should be: 264 Watts. If your solar panel is rated for 12 volts (even if output voltage is as high as 21 volts, the design is for 12 volt applications) I recommend using two solar panels wired in series for an output of 24 volts. BENhow many 1kw solar panels required to electric vehicles like NISSIAN LEAF.It has a motor running at 80kw with lithium ion batteries of 24kwh and on board charging required is 3.3kw.what value should i consider for running of the vehicle? Thats circular reasoning, and it will not work. 2- how many inverter will require ? I will hesitate to believe that these devices run on such varying voltages. This is low voltage, and it would help to have either amperage or wattage rating on the panels. I started Footprint Hero to help people reduce their environmental impact. i made them myself, 20 cells in one 1.5 watt each (or so they say) i have 5 panels,which is best for me, parallel or series just need to know what best for my system, my battery is brand new ive rung them but they say i might need another battery (is that selling or what, any ideas how to get the 8 hours i want for 6 11 watt 230 volt lights ?? Sign up for exclusive offers, original stories, events and more. To figure out your locations average sun hours per day, youll want to determine the peak sun hours, not just the times at which the sun rises and sets. But the solar panel you have will not put back the power you used in a single day. I worked as the Director of Engineering for a major RV manufacturer for years, and one of our greatest headaches was DC power systems and regeneration systems. Normal RMA and exchange rules will apply to all solar panel purchases. Can i run TV, Energy saver, fans etc. Use the calculator at the top of the page. Multiply the charge time by the batterys depth of discharge to estimate how long itd take to charge the battery at its current level: 6. If you think that the PV array may be expanded in the future, size the wire for As long as its a deep cycle battery, and not just a starting battery, then its fine to use. JjI am purchasing a home with 1860 watts of solar, 24 volt system charging 16 trojan 6 volt batteries in series.

A voltage drop greater than 5% will reduce MidgeSo why not correct the math example above? If the system saved you $2,500 per year on energy expenses, the payback period would be just over seven years until you would break even. RICHhi, no one seems to know what their on about on other sites intill i seen this one, i need some help please . BatteryStuff TechI would suggest reading our article Solar Systems the Right Way. The cost per watt has to factor in how many panels you need and at which size. 9p10s @ 270 ah, if my newbie math is correct. BatteryStuff TechThe first box is watts, which is amps x volts. Its a good starting point to help point people in the right direction. sir if i buy 100 piece i get 420 watts how many things i can run with this power Thanks in advance. Look at our solar page, pick a panel you like and then enter the watts here. drop. thanks. Undersizing the wire size will result in excessive power (watts) being lost in the wires On the other hand, installing too large a wire gauge doesn't really have a downside, but do you understand or not. With that said, here comes the disclaimer. volt 100 Please sign up if your email address is unavailable. Iqbal Singhhey i want to have some more of knowledge about solar power. Would a 18 Watt , 8 Amp solar panel be enough to keep battery charged up ?.. with a avg. Fields #6 and #12 are for how many hours you expect your equipment to run in a 24 hour period, and your input voltage (12, 24, 36?). how much time solar energy will take to fully charge my battery? The southwest tends to get the most hours, while the northeast and northwest get the least. how much solar panels, the size of inverter, and the size of solar charge controller, and the battery?

Can I go ahead with upgrade to existing setup like If I will set up 100W, Can I add another 100w to existing system? #14 2days backup power required Is this configuration sufficient to keep my system running 24/7/365. Sohailhi.i have a 60ah dry cell batry and 2 Toyota corolla radiator 12 fans so what kind of solar panel should i need for running fans 6 hours in day and 6 hours in night? to run this 3 things well for all season.

calculator: You can approximate wire gauge size with this calculator (copper wire only). will this keep everything running except for the furnace, (will use wood heat)?no electricity availible, owners have been using this system for 10 years with upgrades they have 2 referagerators running and one freezer. These inverters convert the direct current (DC) energy absorbed by your small solar panel kits into alternating current (AC) so that you can use it to power your devices smoothly and safely.

Please be aware this is the rating off the panel, with that high wattage panel you need to be using a solar charge. BatteryStuff TechWithout knowing the amount of draw of the appliances, I cannot tell you if the system will be enough or not. Its also important to know how many hours you plan to run your RV or tiny home solar system per day to get an accurate reading from the solar cost calculator. Multiply battery capacity by 1 divided by rule-of-thumb battery charge efficiency (lead acid: 85%; lithium: 95%): 4. Full Name Should contain only letters, numbers, and (' - .)! BatteryStuff TechWe always try to be kind!

RICHdo you think my solar panels are giving enough out? In #14, insert days of backup you would like your battery pack to be good for.

Seems to me like if you want to pull 700 watts for 8 hours long, and if you have 8 hours of direct sunlight, then a 700 Watt solar system will be minimal to simply keep up with your home usage. Email address should be formatted user@domain.com. i Your LED lights are rated for 3.5 volts, your power source is 12 volts. Also how long would the recharge take on a battery if it was plugged into a wall outlet in my home? I want to run this all 19 hours a day. You simply stated you have 5 panels at 11.13v each. The instructions given helped me to understand it better. So 2AC amps=242.4DC watts. Divide the 110 Amps by the hours you want to recharge them keeping in mind that we really only see 4 6 hrs of usable sun on most days, so if you go over that time frame you will be into the next day. Please provide all the required if I missed any thing about this as my vendor is going to visit my place soon,once they fixed the setup pannels,battery etc it is not easy to ask them to change the setup. BatteryStuff TechYou are more than to welcome to call our tech line at 541-474-4421 or email us at tech@batterystuff.com, DavidHi, i want to run 4 30W LED flood lights for 5 hours a night, i want to run a 12vdc solar system to run them, how many amp hours of battery should i have, and how many watts solar system would i need to fully recharge battry every day and allow enough in reserve for cloudy days etc etc./. BatteryStuff.com is in no way responsible for the results of your calculations, and if you purchase a system based on the results of the Solar Calculator, BatteryStuff will not and cannot be held responsible for returns or exchanges for improperly sized systems. BatteryStuff TechSorry for the delay. i need it very urgently as i am working on a solar project and want to have more technical details.

Can i run TV, fan, energy saver etc. 12.68 is kind of low for the battery. In general, solar installers will charge somewhere between $0.75 and $1.25 per watt for their labor. You can also contact your utility company for more information that will help you to utilize the solar cost calculator. ive got. If your base calculations are off by even a little bit, the results reflected can be skewed by quite a bit, so view this as a guide, not an absolute. ChrisI have a 30 watt spotlight which will run from a 600 watt inverter for 10 hours and 2 10 watt lights which will run together for 5 hours from the same inverter. At that point, up-sizing the power cable 6 by 6 inch Mono crystalline solar cells 4.2 watt each(Solar eneger) Appreciate your help. 240 Watts / 12 volts DC = 20 Amps DC.

BatteryStuff TechIf your solar system is rated for 12 volts nominal, and if your battery is a 12 volt battery, then the answer to your question is yes. At fully charged state, you should be reading 12.8 13.2 volts for a new battery. This is minus any solar panels, which we will figure in a minute. Field #18 is based on what battery you choose. Douglas S. DuranGood day sir. Divide solar panel wattage by battery voltage to estimate maximum charge current output by solar charge controller: 2. resistance builds up as the cable gets longer. The reason different wire lengths bear different ratings is because the electrical All the items only run when needed and not at the same time (except brewer and pump). You need to match up the voltages, its important to keep the system the same. According to electric bill approx 55 kilowatt hours used last month. So, what is the battery specification I need to use for the above mentioned usage and also how many panels i need to use and we have an average of 10 hours sunlight a day, EniasWhat is a correct charge controller and inverter which is equivalent to 130 watts solar panel plus 120Ah batteries. does the size in volts makes a difference in charge times? The rest of the day the house runs on direct out put saving the battery current for the night. These cells have following specifications

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