However, these trucks must either idle or use diesel or gasoline - powered generators for power, both of which increase carbon emissions. (nyserda.ny.gov)
She fails to mention that, of course, copper is used in every type of power generator. (ramblingsdc.net)
Both the decreased industrial natural gas consumption due to the economic downturn and the increased utilization of natural gas - fired electric power generators contributed to this change. (eia.gov)