how many solar panels or watts do i need to run a house of 5 bedrooms,light,fridge freezer,cd player,utensils?

Answer 1

3 panels should be sufficient on normal use

Answer 2

Not from 45W. And the expense of a system that can provide alternative power will cost more than the energy you save, or pay off in years. First, economize your use be switching to energy efficient appliances and lighting, and a strict low power usage lifestyle for everything. If you want something a bit more cost effective, look into running just some of your non-critcal loads off the solar system. Also, depending on how your power company bills for usage, it may pay better to reduce/substitute daytime usage with alternative. Many have time-of-use billing, which charge higher rates in the day. You go bottom up for size, in that you figure how much KWh you expect to draw in a day, and at one time at most. The former to establish battery capacity, the latter for inverter size ( for mains powered devices). You then size the solar panel array to charge you whole day's use for the small part of the day that solar can effectively charge it. A very rough example may be 200WHx24 hours, which is 4800Wh/day. At 24V, you need a 200AH+ battery array (practically 300Ah, since you don't fully discharge). You likely would get 800W+ in panels, as you get 1/4 the day useful. You might get a 1 or 2 KW inverter.

Answer 3

You need to calculate your usage to determine what you will use. A 5 bedroom house if each room is occupied is huge.

Conservatively you will use at least 10,000 - 20,000 watts per day. You will use 3,000 to 4,000 watts per day just on the fridge and freezer.

Solar panels have different watts and amps. There are also charge controllers, inverters, cables and battery back up. Also check into the voltage system you want to use. A 12 volt system would probably not supply your needs.

Do some research regarding your usage, hours of sunlight, and most of all the cost.

Answer 4

Depends on how much of your electric bill you want to get rid of. I have a 6 kilowatt system (kilowatt rating is more meaningful than number of panels), with 40 panels.

Your electric bill will tell you how many kilowatt hours you use on average. INSOLATION on the Internet will tell you the effective sunlight hours you get in a given period. Mine is about five hours a day. Actual generation from a solar system will be about two thirds of the rating. So the amount of power you can generate will be the rating of the system times 2/3 times the number of hours the insolation tables show for your area.

There a re a lot of other variables such as shading from trees and the like and the orientation of the panels.

Do a lot of studying before spending any big bucks.

Answer 5

First you need to figure out how much electric you are using on the worst day ( the highest usage) and allow a 10% just n case of a higher drain by a device.

Next, you'll need to figure if there is no sunlight how many days of stored electric you intend to maintain. Perhaps two days.

You panels will need to provide your daily usage plus an amount to store ..building up to the two days stored electric.
If i use 20kwh + 10% = 20.2kwh.
If i wish to store 2 days worth, I want to store 40.4kwh, over a five days period, for example, which is 8.08kwh per day.

Therefore, i'd have to have enough panels to provide 20.28kwh per day, after five days your storage will be at full capacity. If you add additional devices to the home, everything changes and you'll need to add additional panels to provide this additional draw.

You may also want to consider the more expensive solar panels, the newer ones not only use visible light but also the light beyond the human eye. This panel converts unseen light, such as infared and ultraviolet into electric also, on a 24 hr basis, therefore, fewer panels will be needed to produce the same electric over the same period of time.

Another alternative, and takes less space is supplementing with a wind mill. but the obvious limitation is no wind of 7 mi per hour, no electric produced.

I would suggest, whatever you decide go bigger. Get what will produce more than you need or more than you anticipate if your budget allows.

Don't forget also, the electric created by all of these is Direct Current. You will need to have an " Inverter" to convert this to Alternating Current to be used in a home, you will also require a voltage regulator. I think, there are companies that sell starter kits...I check into this further before putting the money out and doing it yourself. Be sure you know everything you'll need, ect. I may be a wiser alternative to have a company come in and do it for you if you're not comfortable working with these devices.

Answer 6

A five bedroom house.
Conservatively about 7 KW. average, if no air conditioning, well pump, etc.
The average large solar panel will give you about
15 W. at peak output, (maybe three hours / day).
Nough said??

Answer 7

Guide To Solar Power - http://SolarPower.duebq.com/?pAJ

Answer 8

1

Answer 9

build a big greenhouse in the garden and use solar panels.at best you might save 10pc per annum if we have a heat wave for 12 months.

Answer 10

I agree with Wilfred B. Solar panels currently are used to supplement, rather than replace, mains electricity. Go for a wind turbine. You get money back fom the National Grid if you put in more than you use!

Answer 11

you would require more solar panels than room you have on your roof I would hazard a guess that a ten acre field would give you sufficent space to place them all to do what you require