The Department of Energy’s Advanced Research Projects Agency–Energy (ARPA-E) announced $10 million in funding on February 17 for eight projects designed to determine whether low-energy nuclear reactions (LENR)—historically and sometimes disparagingly known as “cold fusion”—could someday be a carbon-free energy source. ARPA-E intends the funding to “break the stalemate” and determine if LENR holds any merit for future energy research.

The Department of Energy announced September 13 that it would spend up to $10 million in a bid to settle the question of whether low-energy nuclear reactions (LENR)—historically known as “cold fusion”—could ever become a carbon-free energy source. The funding is part of an Advanced Research Projects Agency–Energy (ARPA-E) LENR Exploratory Topic designed to “encourage the submission of the most innovative and unconventional ideas in energy technology.”

Scientists at the Naval Surface Warfare Center, Indian Head Division, have pulled together a group of Navy, Army, and National Institute of Standards and Technology labs to help try and settle the debate over low-energy nuclear reactions (LENRs), reports IEEE Spectrum, the flagship magazine of the Institute of Electrical and Electronics Engineers.

Sometimes referred to as cold fusion, the science of LENRs has been debated since 1989, when Stanley Pons and Martin Fleischmann published the results of experiments in which they claimed to have generated nuclear energy using a simple, room-temperature tabletop setup involving palladium and heavy water. Subsequent experiments by other researchers, however, failed to replicate their findings, heightening skepticism.

According to the IEEE Spectrum report, the labs will conduct experiments in an effort to establish if there is really something to the LENR idea, if it is just odd chemical interactions, or if some other phenomenon entirely is taking place in these controversial experiments.