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PostPosted: Wed Feb 08, 2012 7:58 am 
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What are the advantage and disadvantage of solar panel?

I think Solar energy is renewable power source, clean and ECO friendly.The advantage and disadvantage are listed below:

Advantages:-
1.Reduce or completely eliminate your electric bill.
2.Solar systems are long lasting.
3.No noise or smells, solar operates totally silent.
4.Solar panel can provide power to the most remote locations etc.

Disadvantages:-
1.Initial cost of solar panel system is high.
2.Solar panel set up require large areas of land.
3.Electricity can not produced at night, and less production on cloudy/rainy days.

I want know more advantages and disadvantages related to Solar panel so please share your informative views about this post.............


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PostPosted: Fri Feb 10, 2012 1:20 pm 
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tsmg143 wrote:
What are the advantage and disadvantage of solar panel?

I think Solar energy is renewable power source, clean and ECO friendly.The advantage and disadvantage are listed below:

Advantages:-
1.Reduce or completely eliminate your electric bill.{{{the savings can go to paying off the mortgage or other debts, or go to investments}}}
2.Solar systems are long lasting.
3.No noise or smells, solar operates totally silent.
4.Solar panel can provide power to the most remote locations etc.
{{5. Solar energy is renewable power source, clean and ECO friendly}}
Disadvantages:-
1.Initial cost of solar panel system is high.{{Not too high if you have a reasonably sized system and do it yourself, plus buy components on sale}}
2.Solar panel set up require large areas of land.{{Not really, pole mount and roof mount systems don't require land}}
3.Electricity can not produced at night, and less production on cloudy/rainy days.{{That is why we have battery bank systems large enough to last for the average amount of cloudy days that can be expected, and, of course, provide power at night}}}

I want know more advantages and disadvantages related to Solar panel so please share your informative views about this post.............

You see in my notes above that there are few disadvantages to solar power except for a bad location or people not energetic and bright enough to do it themselves. People with a bad credit rating and low on cash, or with a low paying job will also have difficulty.
There are many profiteers to avoid, and grid tied systems are often not only more expensive, but the utilities don't pay enough, and even have monthly fees for hook up, even if you use none of their electric.
Independent homes and businesses are clearly the most efficient, with mini-grids second. The miles of wires and steel supports in the big grid are a waste of refined metal, and unsightly. Solar panels look cool. :mrgreen:

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PostPosted: Tue Feb 14, 2012 7:21 am 
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Thanks for sharing other advantage and disadvantage of solar panel.keep sharing informative information.


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PostPosted: Sun Mar 04, 2012 5:19 pm 
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Some research project was done to compare "deep green" retrofits on older houses to compare those changes to just putting up solar panels. I think they did some rather expensive options for super-insulating and never addressed air exchange systems, buffered spaces and heat storage and no mention of passive solar but their result was about 136 years for return on investment. Just adding enough solar panels to power the house as-is had a 20 year return on investment (at current electricity and fuel prices). So, eliminating your need for a furnace and DHW was 6 times more expencive then an over-sized solar panel system on an unaltered house. I still think they are way over-priced and think I can get such a "deep green" retrofit to come close to the price of solar panels but solar panels are way easier to add to your roof or fence or garage roof then it is to rip apart one side of your walls (inside or outside) and build a second wall to get a foot or two of insulation in the walls and extra air-tightness. Of course the most cost effective is doing a bit of both... efficient appliences, weather stripping, replace the leakiest doors and windows and then size your solar systems (use both heat and solar cell types).


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PostPosted: Mon Mar 05, 2012 2:24 pm 
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When I built this complex, I paid close to $5/watt with shipping for panels, and now, on ebay, you can get good ones for $1.85/watt shipped!!! I bought two at that price and they are performing well, making up for losses over 12 years and for increases in power use, like with this Energy Star rated computer.
For do it yourselfers, the best time to go solar is NOW!!! Our payoff time, even at the higher cost, was 6 years. :mrgreen:

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PostPosted: Tue Mar 06, 2012 9:20 am 
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Between Obama and the zombie apocalypse, I give solar another 50 or so years before its time is up and no one's making panels anymore. I'm gearing up for a switch to oil (from animal fat) and wood.

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PostPosted: Wed Mar 07, 2012 2:22 pm 
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Solar panels also require people to be roofers which is a dangerous job, although roofers exist anyways.

Another advantage would be private ownership which ties in with bills.

http://greenreview.blogspot.com/2012/01 ... gy-is.html

Quote:
There is another interesting facet of the German renewable energy saga: 51% of all renewable energy in Germany is owned by individual citizens or farms, totaling $100 billion worth of private investment in clean energy.

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PostPosted: Fri Mar 09, 2012 8:40 am 
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Thanks a lot for sharing your informative views about solar panels.


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PostPosted: Sat Jun 09, 2012 8:28 am 
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To reduce the complete electricity bill, the cost of setting up such panel will be huge! Because, the efficiency of Solar panel is very Low, only about 23.5% (Highest till date)! This is the main disadvantage of a Solar panel. Otherwise, this is the ultimate source of Free electricity along with being environment friendly. The problem of getting Power in night may also be solved as I read somewhere that scientists are now trying to get power from the Infrared ray of Sun! Then electricity can be produced in night too!


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PostPosted: Sat Jun 09, 2012 1:55 pm 
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Solar Energy > Fossil Fuels

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PostPosted: Sat Jun 09, 2012 2:20 pm 
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Snowy123 wrote:
Solar Energy > Fossil Fuels
yes but I will add

smaller space > super-insulation/air-tight design > renewable energy (including solar) > fuels


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PostPosted: Sat Jun 09, 2012 2:52 pm 
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Ann Vole wrote:
Snowy123 wrote:
Solar Energy > Fossil Fuels
yes but I will add

smaller space > super-insulation/air-tight design > renewable energy (including solar) > fuels


It works in theory, as do alot of things. However, if it isn't sufficiently accessible and/or affordable, it simply will not happen.

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PostPosted: Sat Jun 09, 2012 3:37 pm 
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Fosgate wrote:
Ann Vole wrote:
Snowy123 wrote:
Solar Energy > Fossil Fuels
yes but I will add

smaller space > super-insulation/air-tight design > renewable energy (including solar) > fuels


It works in theory, as do alot of things. However, if it isn't sufficiently accessible and/or affordable, it simply will not happen.


That's the problem.

The real problem is not climate change, but air pollution, and switching to alternative energy will help to reduce this air pollution.

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PostPosted: Sat Jun 09, 2012 3:43 pm 
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Ann Vole wrote:
smaller space > super-insulation/air-tight design > renewable energy (including solar) > fuels
Fosgate wrote:
It works in theory, as do alot of things. However, if it isn't sufficiently accessible and/or affordable, it simply will not happen.
This order is chosen to minimize the cost but also addresses the way to deal with the vast majority of house locations that are not suitable to passive solar (the cheapest option if there is lots of southern sun access). Going small will ALWAYS be cheaper but you might have trouble selling a small house for a good price. If you eliminate a furnace, you make the building much cheaper to build which can offset the cost of the extra insulation and better windows and a heat exchanger for fresh air. Passivhaus standards are 85% or more reduction in energy use for heating/cooling then a building-code complaint building of the same size. Most estimates puts the buildings around 5-10% more expensive. Higher mortgage payments will be less then a regular house mortgage with utilities. Not a great incentive but if you assume energy prices are going to continue to rise and the increased selling price, it might be a good option. Adding solar for the remaining 15% will be much cheaper then doing solar for a normal house (about 5 times cheaper).


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PostPosted: Sat Jun 09, 2012 4:02 pm 
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Abraham wrote:
To reduce the complete electricity bill, the cost of setting up such panel will be huge! Because, the efficiency of Solar panel is very Low, only about 23.5% (Highest till date)! This is the main disadvantage of a Solar panel. Otherwise, this is the ultimate source of Free electricity along with being environment friendly. The problem of getting Power in night may also be solved as I read somewhere that scientists are now trying to get power from the Infrared ray of Sun! Then electricity can be produced in night too!

It needs storage to deal with the variability.
And solar PV is less effective at northern latitudes which is where most people live.


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