Cellular networks guzzle electricity and diesel fuel, but researchers are showing how new versions could be cleaner but still reliable.
No matter how fast export facilities for liquefied natural gas are approved, it will be years before the U.S. can challenge Russia’s position as a dominant supplier.
Intruders seek data on oil deposits, cutting-edge technology.
The Fukushima disaster led Japan to shut down nuclear power plants, but three years of rising costs and carbon dioxide emissions are forcing it to reverse course.
A startup says it has a more efficient process to use carbon dioxide for making valuable chemical feedstocks.
New solar thermal technologies could address solar power’s intermittency problem.
A startup, Halotechnics, is building a pilot electricity storage system that will use molten salt.
ARPA-E faces a tricky mandate—invest in risky technologies that no one else wants to fund, while still showing results.
Software is taking over cars. But it may be a while before it can be updated without a trip to the dealer.
ARPA-E is funding several projects that use liquid battery electrodes to cut costs and increase energy density.