Solar Cell And Solar Module

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FAQ

Is there any way to charge my laptop with a solar panel? Is there any panel like that. Or if I work on panels can I do something like that. If you know anything about it, can you just help me? Thanks a lot.

Deep Cycle Series batteries are designed to have a large amount of stored current discharged between charging sessions, with very heavy non-porous battery plates to withstand repeated major discharging and charging cycles (deep cycles). They are typically used where the battery is discharged to great extent and then recharged.

Yes, solar panels can be installed on a retirement home or assisted living facility. In fact, many facilities are embracing solar energy as a sustainable and cost-effective solution for their energy needs. Installing solar panels can help reduce electricity bills, offset carbon emissions, and promote a greener environment for residents.

I'm just geting into electonics and stuff. So I am trying to make a simple USB charger. I'm looking for at least 4 volts output. What I've got is two solar panels (detached) a 4 AA battery holder, and a circuit board with an led on it (took the solar panels out of old lawn lights. I need more charge out of my panels (I think) so I tried attaching them. I soldered the positive wire from one to the positive connection on the other and negative wire to negative connection. After doing so and checking the multimeter, it says I have no output at all. How do you connect them?

Huh? you should have got something, in full sun, you should have gotten 3 or 4 volts, but milliamps in current. By connecting them pos. to pos., neg to neg,(paralell) it increases the current output. If you connect pos, on one, to neg. on the other, and measure between the remaining pos, and neg. you should have twice the voltage (series). You need 4 volts, but 4 AA's in series is 6 volts. If your going to use the panels to charge the batteries, you'll need a diode in series to prevent discharge during dark conditions, which the LED will work for.

does anybudy know about solar panels? plz reply me

Solar okorder /

Yes, solar panels can be installed on schools or educational campuses. In fact, many educational institutions are increasingly adopting solar energy systems as a sustainable and cost-effective solution for their power needs. Installing solar panels on schools not only helps reduce carbon emissions and reliance on fossil fuels, but also provides educational opportunities for students to learn about renewable energy and its benefits. It can also lower electricity bills and redirect saved funds towards educational programs.

OK, so if you put solar panels up on a roof, they are busy turning the sun's energy into electricity. So, does that mean the roof (and therefore the house/structure) stays cooler as well? Or does it still get hot, because . . . I dunno, maybe the panels don't convert all the energy, and the spillover still heats up the building.Any links or URLs to scientific answers would be appreciated, but I don't mind hearing from the Average Joe or (Joelle).

I asked the same question once to a PV install during a seminar a few years back, and he explained the following: No, PV panels do not reflect or absorb much heat from going into the building below but there is a reason for this: PV panels that reflect / absorb heat produce less electricity. They are designed to Thermally Transparent. Even worse if installed incorrectly without a good angle and air gap to allow the heat to escape the panels will actually trap this heat and increase the interior temperature of the building below! Below is the scientific analysis that is quite verbose but has two nice graphs at the end. To summarize: Adding PV panels, at best, shaded the building enough to reduce the load of the interior A/C unit by .8 kWh/sq-m/year. The electricity generated by the panels was about 356 kWh/sq-m/year. You can see the big advantage of PV panels is to make power, not reflect heat. Proper insulation is much cheaper and will do a much better job. Don’t worry, I was shocked too, but like anything it makes sense after it is explained.

Yes, solar panels can definitely be used to power a marina or boating facility. Solar energy can be harnessed to generate electricity that can be used to meet the power needs of various facilities and equipment in a marina or boating facility, including lighting, ventilation, pumps, and charging stations. By utilizing solar power, these facilities can reduce their reliance on conventional energy sources, decrease their carbon footprint, and potentially save on electricity costs in the long run.

I have a shed that has wiring run for light bulb and a couple outlets. It is in a dark corner of my yard and at night is kinda creepy to go in with even a flashlight. I am weighing the option/expense of running electricity from the house on an overhead line versus putting up a 45 watt solar panel on the metal roof with inverter, battery etc. Sunlight is good to excellent at the location. Question is - will this be sufficient for the occasional use of light and an outlet? What can I expect? Pros and cons appreciated

Lets say, for a simple approximation, that the 45 watt panel produces 45 watts /3 of the time and nothing the rest of the time. Each day, this will produce 8 hours times 45 watts = 360 watt hours. Also assume the battery charge controller and inverter waste half of that power, leaving 80 watt hours per day. If you use compact fluorescent lamps, that would allow you to burn 80 watts worth for an hour every day, or 90 watts for 2 hours, etc. That is a lot of light for a shed. You might consider using much less efficient tungsten filament lamps, but eliminate the inverter and choose low voltage (automotive) lamps that can run directly across the battery and lower the total cost, but give you only about half the light times time. The main advantage of the inverter might be that it would allow you to use small power tools or appliances in the shed. -- Regards, John Popelish