Admittedly when efficiency is less than 20 percent it can look that way. Plants going bankrupt- While I have not read of any, other than Solaris, the reality of the marketplace is such that bankruptcy is a not uncommon occurance, and it is not a death knell to a company. Sometimes it is used as leverage against creditors, or can be the result of mismanagement. In the 1950's bankruptcy was common in the auto industry and we still drive cars. Over time, is when it matters. Innovations, new techniques, new materials will raise the efficiencies of panels, and some companies going bankrupt is to be expected. It is not a reflection on the industry as whole though. Many companies jumped into manufacturing when demand was expected to jump, and it did not. Competition from China is also a factor. If the regulatory burden was less, panels would be cheaper in the US and Canada. Will solar be around 30 years from now? Certainly. People are tired of the oil companies ripping them off and manipulating the marketplace. Then when you also factor in the high probability of carbon taxation becoming a reality when in fact all it is, is a scheme to make bankers, Al Gore, the Saxe-Coburg and Gothe Family richer, you will likely choose to install even inefficient panels as a matter of princicple. Being able to disconnect from a grid that is being re-engineered to shut off major appliances and your air conditioner in the name of "smart grid" technology and saving energy is not going to be acceptable to many people. Like it or not, "smart appliances" are here to stay and so is the "smart grid." No, the real Edsel of the energy technologies is Nuclear. We simply outgrew it, it is old technology, it is hazardous as Fukishima and Chernobyl bear testament to. And it's waste is a "forever" legacy- yet GE and Toshiba are touting it as "clean" when it isn't. "Reliable" when it is not. and :Safe- when it is not. The reason you do not see nuclear waste being talked about is due to 1) it is a highly regulated industry, 2) it is has a vocal opposition to many aspects of the industry, 3) politicians knew way back in the 1960's that transport of the waste or even the fuel was risky and the public unforgiving. But the nuclear industry has enough money to get their propaganda into textbooks to brainwash and curtail critical thought about the entire nuclear industry among the younger generation. This among many controversial issues that would have been rejected 50 years ago are integral to what we call "education" today.