Both configurations include technical innovations that help save substantial amounts of energy and water. (energystar.gov)
This is because the demographic transition requires substantial amounts of energy, and if energy supplies decline, then growth rates will very likely rise. (journals.plos.org)
When the nucleus of a fissile atom is hit by a neutron, especially a slow - moving one, it will most likely cleave (fission), releasing substantial amounts of energy and several other neutrons. (scientificamerican.com)