Scientists are working on the greenest power yet, building bacteria for fuel cells which will work on waste, mud, and any other trash you happen to want free electricity out of. We believe there's a market for that sort of thing.
The important thing to remember is that electricity - the basis for all modern society - is just the flow of electrons, and that doesn't have to be some traditional energy-releasing process. Geobacter bacteria shuttle electrons around the place as part of their whole "staying alive" deal, so instead of finding new things to set fire to Professor Lovley and colleagues of the University of Massachusetts Amherst are instead engineering the bacteria.
The dream of launching satellites into space to harness the sun’s energy and beam it back to earth is looking increasingly realistic as Japan researches satellites that convert solar light into lasers, which then beams it down onto a facility that converts it into clean, usable power and U.S. companies aggressively research networks of satellite-based photovoltaic cells.
It's official: sucking dead-dinosaur juice out of the ground and burning it is officially uncool. Whether you object to the way you can't breathe the resulting fumes, or it's the thought of a swing back to $200 dollars a barrel that will leave you gasping for air, people from both ends of the political spectrum agree that it's time to find a new way to power our playthings. The mathematics of a fuel-based economy are a vast and complicated field but the simple summary is:
a) The number of people using energy continues to increase
b) The number of new dead animals turning into oil remains constant at zero
If there's anything less environmental sounding than battery fluid, we don't know what it is. Kids are trained to fear leaking batteries as angry anthrax-covered Aliens with especially acidic blood, but MIT scientists may have made the greenest battery yet entirely out of liquid. At least, according to them.
The new system is an fully liquid battery, a chemical cocktail which can contain charge and is even color coded. The batteries you know only have one liquid component, and still depend on a solid electrode - thereby limiting the scale of the system. With three liquids you can literally pour yourself a bigger battery, without any hardware bottlenecks - if your existing connections aren't good enough, pull them out and stick in better ones.