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Solar Panels Pv

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Where to Locate Your Solar Panels at Your Home for Optimal Performance

Location and Orientation of the Solar Array

Location of the PV panels is critical to their energy output. A solar panel installed in Florida will produce more energy over the course of a year than an identical panel installed in North Dakota. Places closer to the equator will get more sunlight (also referred to as irradiance) throughout the year than places further north or south. The more irradiance striking a PV panel, the more electrical energy it will produce.

Another factor that will affect the electrical output of your array is the directional orientation of the modules. When choosing a location for your garden, you know that a southern exposure will increase yield. So with solar panels: they perform best when facing due south to get maximum exposure as the sun travels from East to West.

About the author: Founded in 1999, altE, Inc has catered to DIY customers on every continent of the globe. A 2006 Inc. 500 awarded company, altE aims to continue to fulfill its motto, "Making Renewable Do-able," by offering cost competitive, high-quality renewable energy related products and educational services to a broad spectrum of the public. For more information visit their website atwww.altEstore.com or contact Toll Free (877) 878-4060.

Source: http://www.articlesbase.com/diy-articles/where-to-locate-your-solar-panels-at-your-home-for-optimal-performance-3267698.html

Frequently Asked Questions

  1. QUESTION:
    How many solar panels (PV) for a 1500 sqft off grid home?
    We use about 400 to 500 kwh per month. We have a tv, computer,microwave, and of course fride, washer/dryer, and back up water heater. (solar water heater is the main one)

    Also how much would such a system cost, including batteries and inverters? Rough estimate okay.
    I try to use very little energy, and those are the figures on our current electic bills

    • ANSWER:
      I use about 500 kWh a month and have a 1600 sqft home. It is two years old.

      500 kwh divided by 30 days is 16.6 kwh a day. I don't know where you live so I can't say how many peak sun hours you get so lets just use five.

      16.6 divided by 5 = 3.3 kwh in solar modules. You said the home was off grid so ,263.70 for parts. Add in 10% to 15% for the install and you got it .

      Really there is no way to know without asking you a lot of questions.

      What is the total wattage that will be on the system at any one time.. (tv set, freezer, coffee pot and hair drier and a few lights) that will tell you how big of an inverter you need. Then you will need a battery bank that will only be drained by 50% by the end of the day before re-charging. Which you can find because you know you use 16.6 kWh per day. 16.6 divided by 48 volts battery bank is 345 amp hours in battery power plus like said above you need to double that so 700 AH should do it.

      There is still more to it because you need to make sure that the 3.3 kWh in solar power will give you a 5% to 10% rate of charge. At 48 volts you would have about 68 amps so you are close to 10% so all is good so far.

      If you plan to do it all your self you should start out by buying the parts for a small system and teach yourself all about it. Or talk to a dealer.

      Here is a good info page to help you out.

      http://www.oynot.com/solar-info.html

      And here is a price list of complete systems. http://www.oynot.com/solar-grid-tie-backup-by-array-size.html

  2. QUESTION:
    Where can i fing a comperisson between manufactures of solar PV panels world wide?
    I need a good and reliable comparison between manufacturers of photovoltaic solar panel manufactures. German, US, Japan, China... for a new project i make.
    Thanks, Ofir

    • ANSWER:
      Hey Ofir, you need to subscribe to Home Power Magazine. It's the only periodical that gets into the nuts and bolts of what you are asking about. About 3 or 4 issues ago they did a comparison of all known commercially available solar panels on the market today. The list compares about 20 items, such as power output, warranty period, size, weight, degradation due to temperature and lifetime, and so on. Each issue they take something related to renewable energy, like inverters, wind turbines, charge controllers, and so on, and compare all the models available.

      We started subscribing about 12 years ago, and it's where I still get lots of my information today. Our home is now powered entirely by the wind and sun, so in our case it's been good research over the years. I don't know anyplace else to get the in depth information you are asking for, but I will list some other non profit sources below you can look for on the net, but you'd be better off to just go to Home Power and pay the annual fee, it isn't expensive, then you can research back issues at their website and read any articles in the past, including the one on solar panels. Good luck, and take care...Rudydoo


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