Please Suggest !

Yes, I have one. All these sources you have listed using current technology to convert the available energy into a usable form are very expensive to set up & once set up, are expensive to maintain & you get so little from each source that to just break even on costs, you would have to have it running for more than 25 to 50 years. So in my opinion, these are not viable sources of renewable energy that you can build & maintain yourself. The good news is there is a source of renewable energy that everyone can use & has access to right now. The set up is extremely cheap & it hauls in kilowatts of usable energy from your local environment. You can build one here for free & the parts are very cheap & readily available... you may even have some lying around. You have 24/7 free online support & all the free information you will ever need. Alternatively, you can buy a kit of parts & build as before. Over 3000 members from every country around the world have successfully built & tested this patented model. You may also read the books written by John Bedini or Tom Bearden, available at your library. The technology & terminology goes back as far as Nikola Tesla's experiments at Colorado Springs earlier this century. http://tech.groups.yahoo.com/group/Bedini_Monopole3 http://r-charge.com/ http://cheniere.org/