The U.S. Department of Energy aims to make electricity from the sun cheaper than that from burning coal or natural gas
How can a small federal agency help reinvent how the U.S. produces and uses energy?
Inventing the future of energy may be key to improving U.S. national security, economic prosperity and health
ARPA-e funds potential breakthrough work to make energy-dense batteries that enable long distance travel
China pauses its plans to build the most new nuclear reactors in the world in the wake of the accident at Fukushima Daiichi in Japan--but will not halt them
The next generation of reactors in the U.S., up for review by the Nuclear Regulatory Commission, are meant to provide cooling even in the absence of power
And what does that mean for the U.S. economy and environment? David Biello reports
Although it is still loosely defined, net-zero usually means a building that produces as much energy as is consumed
Humans can capture and release CO2 efficiently, so why can't power plants?
One drinking-water bottle could provide enough energy for an entire household in the developing world if Dan Nocera has his way. A chemist from M.I.T.
Various efforts are underway to find a cheap, efficient and scalable way to recycle the greenhouse gas carbon dioxide back into the hydrocarbons that fuel civilization
Making aluminum requires a lot of electricity. That's because the metal bonds tightly to oxygen and it takes a lot of energy to break that bond. In essence, the process of making aluminum is a giant battery with the silvery metal being reduced to purity at the cathode while oxygen bonds with the carbon anode to make, you guessed it, CO2.
Turning plant sugars into gasoline with heat, pressure and catalysts
The entire budget of the U.S. Department of Energy branch that covers today's energy mix—from cleaning up energy generation's environmental aftermath to energy efficiency programs and renewable energy development—is $10 billion.
Here's how to make a solar cell from silicon: take one solid block of doped silicon, saw it into thin wafers, layer said semiconductors beneath a panel of transparent glass, connect them to a metal electrode that can channel away the electrons knocked loose by incoming photons and turn it into a photovoltaic device.
The fuel cell has a long history. Various types of fuel cells have been part of the NASA space program, and the basic science of how fuel cells work—an energy carrier comes in, creates a flow of charge in the anode, which migrates to the cathode creating a current, and separated by some form of electrolyte—has been known for more than a century.
EPA list of cities with the most energy-efficient buildings shows dramatic growth
A new technology could create a much more rapid charging time for lithium ion batteries
A new report outlines a strategy for the federal government to encourage clean energy technology
New efforts to track and quantify greenhouse gas emission reductions could prove a model for global efforts.
ARPA-E, the U.S.'s energy transformation agency, is doling out funds for greener power, but is it too conservative?