42-Volt automotive systems will enable fuel economy improvements of 10% and more

Automakers will adopt 42-volt electrical systems faster than previously thought because the switch from 14-volt to 42-volt systems will produce substantial savings in fuel cost and a reduction in emissions, according to a study released by automotive forecaster Standard & Poor’s. The 100-page study conducted worldwide among vehicle manufacturers and suppliers predicts that 25 to 30 percent of the light vehicles produced in North America, Europe and Japan will have 42-volt systems by 2010. The more powerful 42-volt systems would pay for themselves by enabling fuel consumption savings of ten percent or more with no capital investment. “With a stronger OPEC pushing oil prices higher, and a global awareness of the need to reduce CO2 emissions, the fuel economy technologies enabled by 42-volt electrical systems suggest that this is a technology that can benefit everyone,” said Philip Gott, Principal of Standard & Poor’s DRI. Renault SA has announced a 2004 model with a combination of 14- and 42-volt power, with a complete 42-volt system expected in 2007.