How many solar panels and what size back up battery to run my electric smoker on solar power?
You won't like the answer to this one. Assuming 1500 watts for 6 hours, in the summer, you'd need about 2500W of solar panels (at $3 a watt, that's $7500), and 450ah of batteries at 48V, probably about $4000). Then there's a charge controller and inverter, add another $2000. Equipment that makes heat or cold are the most power hunger appliances. It's really hard to take them off-grid, especially something that runs for such a long time like a smoker. Get a wood burning smoker and do it the old fashioned way.
What is the different between solar battery and car battery?
Actually, there is no such thing as a "solar battery". It's a marketing term with very fuzzy meaning. There are solar panels or arrays, which collect power from the sun, but do not store it. And there are batteries connected to a solar panel to store that energy. .
Can we use solar panels without a battery?
Hello.Yes! You can!Solar panel and battery are two independent components of solar PV system.Battery is only required if you want to have energy storage.When solar panels are exposed to sunlight they generate electrical energy (DC). This generated electricity can be readily used or can be pumped into main utility grid(after inversion) (this doesn't require battery).In simple words, if you want to utilize generated electricity from solar after sun sets, then you need to store that electrical energy into battery.Above figure shows simple solar power system(with battery)Following links will help you to calculate battery sizing: Battery Sizing Calculator Sizing the battery bank for your off-grid solar power system SO you require battery only if you want to have energy storage.And you know that high capacity(MW rating) solar power plants don't have any battery systems. Because they directly pump the generated electricity into utility grid after inversion.I hope your doubt is cleared! For more information or any query you can comment.Thanks a lot!
I will use 65000w i want how many solar panels and battery ah for 8hours backup need?
As 65kW is a lot of power for a battery based system it would use a higher voltage battery, let's say a 240V battery. The current is then 65,000W/240V = 270A, so 10 hours requires 270A * 10h = 2700Ah. This does not allow for losses in inverters and cabling, and uses the full capacity of the batteries. It is not the best way for long battery life, so they should be even bigger. If operation is for 10h a day too, the panels need to provide 270A * 10h a day also. Allowing that the batteries might only be 70% efficient, this needs additional capacity = 2700Ah/0.7 = 3857Ah/day. If there is 5h of equivalent full sun in a day on average (in the tropics with no clouds or dust), the current from the panels is: (3857Ah/day) / 5h = 771A More should be allowed for losses and aging but the minimum capacity from the panels is like 800A x 240V = 192kW. Typical panels might be 200W each, so 192kW/0.2kW = 960 panels of 200W each. This is a very basic estimate to give a picture of what is required. It seems likely that more panels and more batteries are required. Clearly this is all a bit extreme and expensive so would need a more detailed engineering and cost analysis to find the best value for money, depending on: actual power and energy need in kWh per day expansion needs losses available batteries and their realistic characteristics inverters actual equivalent full sun available lifetime land permits Cost of money etc. It probably needs even higher voltage batteries and panels to suit. Generally up to about 500V may be feasible, especially as a split system of plus and minus 250V with the middle grounded. It might need some sort of standby/backup power like a diesel generator or grid. It would make sense if you can sell power to the grid and buy it when needed, but this depends on existing local capacity/infrastructure. A diesel generator is a lot less capital and a reasonable turbo-diesel might use about 200g of fuel per kWh so 0.172 liters * 10h * 65kW = 112 liters for comparison. I did figures for 10 hours backup because that seems more realistic for the battery capacity. You can redo them easily using the above examples.
How can I calculate the backup time of a 40Ah battery with 75 Watt solar panels?
Part 1 - How much time does it take a 75 watt solar panel to charge a 40AH battery.Assuming it is a 12 volt battery, we need 12 x 40 = 480 watt hours of energy to fully charge the battery. A 75 watt panel will generate close to 75 watts in full direct sun. However, in real life only about 80% of that power, about 60 watts will make it to your battery.So the charging time would be 480 / 60 = 8 hours.Part 2 - What can a 40AH , 12 volt battery power.The usable energy is 480 watts. So if you are running an appliance which uses 60 watts of power say like a Laptop - you would be able to charge the Laptop around about 8 times. But in reality you cant discharge the battery right down to 0, so perhaps 6 times would be a more realistic estimate.You might like to read about Solar Powered Generators - they do the same thing and are packaged and integrated for immediate use.
Solar Energy! EASY 10 POINTS?
Facts about solar energy: 1.Solar energy is a renewable resource (it may go away at night, but we will always have it.) 2.Solar energy will not pollute our air with carbon dioxide and other harmful greenhouse gases and bad emissions. 3.Solar energy can be used to heat water, dry clothes, heat swimming pools, power attic fans, power small appliances, produce light for both indoors and outdoors, and even to power cars, among other things. 4.In 1990, a aircraft powered solely by the sun crossed the United States. 5.Solar energy products can be very expensive. The initial cost is, perhaps, the main disadvantage of solar energy. 6.You need a relatively large area to install solar panels if you want a good level of efficiency. 7.Depending where you live (Arizona vs. Alaska, around many shady trees or in the desert, etc.), you will get different results with solar energy systems. 8.Of course, once you install the products, they can be very inexpensive to run. In fact, energy from the sun is free. 9.If you have a really good solar energy system, one that produces even more energy than you use, your utility company can buy it from you. 10.When you use solar energy, you are making you and your home independent. You do not need to depend on foreign or other sources of energy which can raise their costs quickly. 11.To run a solar energy system, you do not even need to connect to a gas or power grid. 12.Solar energy cannot be produced at night or if there is a lot of pollution in the air or clouds over the sun. 13.Of course, realize that you can have a battery backup system with your solar energy system that will take care of the problems that could arise when the sun does not rise, so to speak. 14.You can install solar energy in remote locations. If there is a power outage, you can still have electricity! 15.As your energy needs grow, you can add more solar panels 16.Solar panels operate silently. 17.Solar powered cars are not yet up to par with other cars. They have a much slower speed. 18.Solar energy systems require very little maintenance and will last for a long time. 19.Technology for solar energy is constantly improving. Those are just a few facts about solar energy. I hope that they were helpful!
I have 8 batteries of 12v 200ah and i want to charge them on solar panels how many solar panels i want?
William B's answer, though conveniently brief, is either wrong or woefully devoid of context and is ultimately of no help whatsoever. If you're saying you have 8 batteries and EACH has 200ah of capacity, those are some mighty batteries. That would mean that you have 1600ah at 12v, 19.2kWh capacity. If you have 100w panels, assuming you get an ENTIRE 8 hours of full sun on your panels (NOTE: you don't) and your charging system is 100% efficient (NOTE: it isn't), you need 24 panels. Take the assorted inefficiencies into account and the fact that full sun only takes place for a brief period in the middle of the day, and the panel requirement goes up. Use larger panels and you'll need fewer of them. Assuming you're talking about the TOTAL capacity of your battery bank equaling 200ah, that means 2.4kWh, and if we continue to assume a full eight hours of full sun and 100% efficiency, you could get by with just three panels. Again, do the math to make the assumptions line up with real world conditions and you will see how many panels you actually need. It will be more than three unless you've got easy access to some pretty big panels. NOTE: the battery's stated capacity is not really a good yardstick. Drawing a battery all the way down to its full capacity is very hard use and will ruin the battery pretty quickly. Drawing a battery heavily will stress it and wear it out pretty quickly - if you need heavy amperage capacity, you'd be well served to have more batteries in parallel to absorb the big loads. You would be well advised to talk to some people who are renewable energy professionals, and maybe folks who already have solar power installed. They can usually give you pretty good information on what to expect.