Twin Creeks Technologies claims that they can produce solar cells for about half the price of the ones currently in the market.
The key is thinness: wafers produced on Twin Creeks are less than one-tenth as thick as conventional wafers.
They can offer thinner solar cells for about 40 cents per watt, but as efficient as thicker ones at 80 cents per watt.
Hyperion, a manufacturing system developed by Twin Creeks Technologies, solves the problem of thick wafers with a technique called Proton Induced Exfoliation (PIE).
source Twin Creeks Technologies