Breakthrough in solar photovoltaics
An anonymous reader writes "The Holy Grail of researchers in the field of solar photovoltaic (SPV) electricity is to generate it at a lower cost than that of grid electricity. The goal now seems to be within reach.
A Palo Alto (California ) start-up, named Nanosolar Inc., founded in 2002, claims that it has developed a commercial scale technology that can deliver solar electricity at 5 cents per kilowatt-hour. " As always, take these claims with a dose of salt the size of the Hope Diamond.
First: four grains are a carat, and a carat is 200 mg, so 20 grains go into a metric gram.
Second: The Hope Diamond is about 67.125 c, which puts it at 13.425 gram.
Third: A dose of 13.425 gram of salt (NaCl) is considered hazardous to human health, and 30 gram are almost a deadly dose.
So if you ever think about taking a dose of salt the size of the Hope Diamond, make sure, the 911 call will get through.