Q:When you add a load resistor to a PV panel (Solar panel) of 00 ohms what happens to the voltage produced from the cellAlso, as the resistance increases, how does this affect the output voltage

Photovoltaic cells have a load curve that gives the power conversion based on the current drawn. This makes it harder to calculate. For instance, at infinite resistance, the solar cell will have a peak voltage that produces no power (P=I*V=V^2/r). At short circuit, the voltage collapses to essentially nothing and so the power is almost nothing. There is an optimal load (sweet spot) where the resistance applied will draw the most power out of the cell while not overloading it. This measure is either given by the manufacturer or found experimentally. Upon taking a lit panel that has no load and applying a 00 ohm resistance, the voltage will drop. By how much is entirely dependent on the array layout and specific cell characteristics. As the resistance drops from the optimal load point, the voltage collapses fairly sharply. As the resistance increases from the optimal load point, the voltage will rise more at first and then level off to the peak or no-load voltage.

Q:I would like a list of the solar companies expanding or doing hiring or a good list in general. I know some are expanding. Best answer gets all the points

There okorder /

Q:I'm part of the Sustainability group at school, the school principal is a d**k and doesn't care about the environment, he only cares about money.Me and the group will be talking in front of him and the school council (the people in-charge of the school's money) To convince them to put solar panels on the school roofs.I know that it definitely will help the school save on electricity bills, but it WILL cost a lot of money to put them in.In the end we just wanna reduce carbon emissions!HELP :)

Show live examples such as those in Northern CA where the schools working with private industry funded a complete solar installation for a school district. Yes it can be done!

Q:260 watt solar panels on an rv?

It depends on the power you need. There should be a controller between the battery and the solar pv panels.

Q:Can solar panels be used for powering a hospital or healthcare facility?

Yes, solar panels can be used for powering a hospital or healthcare facility. Solar energy can be harnessed through photovoltaic panels to generate electricity, which can be used to meet the power demands of various medical equipment, lighting, heating, and cooling systems in hospitals and healthcare facilities. This not only helps reduce reliance on traditional energy sources but also provides a sustainable and eco-friendly solution for powering critical medical infrastructure.

Q:We've been considering solar panels for a while now, and we'd like to know a little more about them. Please answer to the best of your knowledge. Thanks.

I think that solar photo-voltaics have improved tremendously in the last few years but are being promoted due to the simplicity of installation. Most of the residential energy needs is in heating water, residential heating and air-conditioning, all of which can be provided for with less expensive solar thermal panels. Once the base line energy needs of the household has been met with solar thermal, a much smaller photo-voltaic system can be installed for lighting and to run the pumps in the solar thermal system and the fans in the absorption air-conditioning unit powered by solar thermal. Since solar thermal is less than /0 the price of solar photo-voltaic, this should dramatically decrease the capital needed. Also remember that lower price solar photo-voltaic systems are on their way, development is going very quickly, the commercial units you buy today will probably be any where's from $4 a watt to $0 a watt but $ a watt systems have already been developed, just not widely available yet. You may also want to consider using solar shingles instead of solar panels for your photo-voltaic system.

Q:I want to build a Solar Panel at home.Where can I find possibilities for Selfmade Solar Panels

You okorder /

Q:Online stores selling solar photo-voltaic generation kits gives specs indicating the power generation capability of the system. For example, Solar World Grid-Tie Solar Electric System with 245W Panels PV Powered PVP2000 Inverter, .2 to 2.4 kW. This seems to indicate that the system can generate .2 to 2.4 kW. Is that per day? Per month? I'm trying to calculate the return on investment, but can't because I don't know how much power a system such as this will generate in a month.

As Ed said, that .2 kW is an instantaneous rating in bright sun. The way to do this right is to consult the maps here rredc.nrel /solar/old_data/nsr... to find the number of equivalent sun-hours your location gets per day. Select, Average, Annual, Flat plate tilted south at latitude. A map will come up. For northern California, it shows 5 equivalent sun hours per day, for example. If the system is .2 kW, then .2 x 5 = 6.0 kWh of energy the system will generate per day, on average. That takes into account cloudy days, short winter days, long summer days, everything. The 2.4 kW system would give double that, obviously. But that's an example, based on a specific location. Phoenix would do better, Seattle would do worse.

Q:Can solar panels be used in areas with high levels of chemical pollutants?

Yes, solar panels can be used in areas with high levels of chemical pollutants. While it is true that pollutants can potentially affect the efficiency and performance of solar panels, proper maintenance and cleaning can mitigate these effects. Additionally, advancements in solar panel technology have made them more resilient to environmental factors, including chemical pollutants.

Q:I've seen a couple homes around my town that have solar power and I live in the Desert, where the sun is shinning and it gets really hot during the summer. We run our air conditioner a lot making our electricity bill high.So I just wanted to know if anyone has or knows anyone that has solar panels? are they worth getting and is it the same as having electricity?

and, if given the tax credits, you'll see a faster return on investment in CA than I would have in Western PA (I was given a 0 year return number without factoring any tax credits). Plus you'll be doing something good for the environment. My brother put his house for sale which had solar panels for hot water, and was offered good money for the solar panels independent of selling the house. If anyone has a any no answer that doesn't involve the initial expense, I'm looking forward to reading it.