the remembered energy

What are the disadvantages of solar energy?

It takes a brave person to post about disadvantages of solar energy on a solar power blog!  But I am a realist.  I know that there is no perfect energy solution when all the variables are taken into consideration.  Issues related to materials cost and composition, reliability, efficiency, and even pollution all come into play.

My hope is that by reviewing the disadvantages of solar energy, we’ll see that there are actually more advantages to it than other traditional sources of power.  Are you ready to shed some… “light” on solar energy?

In no particular order, here’s a list of some of the stumbling blocks for solar energy:

1.  Cost.  Despite the fact that there are generous tax incentives and rebates available, the upfront cost of purchasing and installing solar panels may be prohibitive for some people.  Some people may think, why change from cheap fossil-fuels that are already at the front door on transmission lines?

2.  Need for Sunlight.  Whether your house is shaded by trees or other buildings, or if its just plain not very sunny in your hometown, your solar panels will need some sunlight (filtered or direct) each day.  Add to this requirement the need for adequate space for a solar panel installation.

3.  Pollution.  Oh, my gosh! Could it be that this clean renewable energy source has a dirty little secret?  Most PV solar panels are made from silicon and include potentially toxic metals such as lead, mercury and cadmium.

4.  Reliability.  In order to continuously power your home or business with solar energy, you’ll need batteries in which to store excess energy.  Solar panels do not work when the sun goes down.  If you draw off the grid during off-peak hours, you’ll want to have credit from the utility during periods that output is very great.  That’s not always the case… yet.

Solar Panels

Any other disadvantages of solar energy?

5.  Inefficiency.  Currently, most solar panels have a 40% efficiency rate.  That means that 60% of the potential energy from the sun is not harnessed.  Some higher-tech, advanced solar panels have increased efficiency of up to 80%.  Each year, more technological advancements are announced, however, that increase efficiency and decrease cost.

6.  Inertia.  It is easier for people just to leave things “as is,” than to invest the time and energy to install solar panels, work with the utility company, research tax incentives, wonder about reliability, etc.  You could even include me on this list.  I’ve been wanting to install solar panels (both PV panels and solar thermal panels) for the past year.  We’re still in the planning phase!

I’ll follow this post with one about the advantages of solar energy.  But I’m wondering… are there any disadvantages of solar energy that would prevent you from harnessing this resource?  Please let me know in the comments below.

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41 Responses to “Disadvantages of Solar Energy”

  1. Hi Stephanie,
    Solar Hot Water systems offer many solutions to the disadvantages of solar that you mention. Solar hot water systems typically cost less than most PV systems, are more flexible in their sunlight needs, are reliable, and are very efficient.

    The biggest problem with solar hot water systems is that people don’t know about them! With their ability to supply over 70% of hot water needs in a typical home and cut large amounts of carbon, they are a great way to use the sun to offset non-renewable energy use.

    -Chris

  2. thnx, jus wut i was lookin 4 =]

  3. i really didn't find this helpful at all
    sorry =Dx

  4. well your a idiot then because I wrote half my english paper based off this information

  5. it was good and useful

  6. Thank you very much !
    This was very informative :)
    I based my english assignment on this.

  7. this did not help!!!

  8. my teacher is a doosh

  9. i wonder if i cuse the word would come out f*ck

  10. damn it it censored it

  11. you suck

  12. gayyyyy

  13. it was very good thank you

  14. Solar panels' efficiency is constantly improving, thanks to immense technology development efforts that achieve improvement increments of a few percent. Regrettably, mediocre dirt and dust hamper sunlight transmission to the solar cells, and consequently reduce their throughput substantially. Cleaning the panels is a costly operation and therefore cannot be a practical solution. TitanShield SolarCoat is an optimal solution to the problem! This innovative photocatalyst material is sprayed on the surface of the solar panel and will avoid accumulation of dirt. Not only that, due to its special optical characteristics, TitanShield SolarCoat will diminish the loss of solar radiation through the glass of the panel by 5% (by reducing glare and thus reflection from the panel, as well as other losses). TitanShield SolarCoat is inherently a UV radiation mask. This helps to prolong the useful life of the DSSC cells that are susceptible to UV radiation. Once coated, the TitanShield SolarCoat will last and function for the entire lifetime of the solar panel. We offer here a holistic environmentally friendly solution that eliminates the use of water and detergents for cleaning the panels, while saving considerable expenses.

  15. Its very useful for me:) I just planned to install it soon. Also, recommend one sport website for those who loves sport… http://www.sportkin.com

  16. the writer wrote very well.

  17. Where can I buy this product?

  18. very helpful. thank you.(:

  19. this didnt help … at all

  20. hi
    i had to write a paper on this and this helped me a lot thank you =]

  21. very good info good for science papers

  22. Wow…A for me on this science projecto :)

  23. lolz Yes now i can finish my project for my teacher ms wertz!

  24. this will so help me with my arguement about why geothermal energy is better!!!!!!!!

  25. me too i don't really find this helpful !!!!!

  26. useless…. cant copy it, lol atleast write the definition

  27. this was suckish!! we are in science class and im learning more from the losers singing beside me than this dumb website

  28. THIS DIDN'T HELP AT ALL!!!!!!!!

  29. Thanks for my Geography asessment :) ))

  30. fuck LIBERALS! OBAMA IS FUCKING UP EVERYTHING!!! HE IS! HE IS! HE IS! WE NEED A REPUBLICAN TO MANAGE MONEY, CUZ OBAMA AND HIS BLACK ASS CAN'T!!! DONT CALL ME A RASICTIST YOU FAG'S.

  31. FUCK OBAMA!

  32. FUCK ALL DEMOCRATS FUCKING UP THIS COUNTRY

  33. HaHA :) thanks my assesment complete!

  34. didnt help at all thanks alot my report is goin to be bad now

  35. yeah because that REALLY means they're the idiot….

  36. can you tell me what happens when water is turned off and theres no water in hot tank when heating water from solar panels

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