This was part of a design contest. Unfortunately, there was zero engineering applied to the designs so it's really not any different from what you find in the SR4 books. Somebody decided it was a cool idea and submitted it to a contest. Whee.
The 2nd place prize went to a "gravity powered lamp." Lift a weight on a corkscrew shaft and as it drops it powers a generator hooked up to LEDs putting out as much light as a 40w bulb for four hours. Neat huh? Of course, the designer didn't bother to do any math. A quick bit of googling for a unit converter and then using googlemath would have told him that a perfect light source with zero losses would require something like
three tons of weight.
The winner issued what has been called a
"retraction" but the guy seems totally oblivious to the criticism leveled against him. He acts like a better LED will fix his design. This isn't even a case of not taking into account the efficiencies of a light bulb, it's a complete disconnect with the current understanding of the laws of thermodynamics.
One of the notable mentions tried to justify capturing energy from cell phones as a power source. Not a bad idea in theory but they made the classic watts vs. watt-hours mistake at the start.
So don't put any faith in anything from this; it's nothing more than series of artists sketches with some nice sounding words that have less science and engineering behind them than a typical high school college fair.