More than one-third of light-duty vehicles sold globally in 2020 will be equipped with stop-start technology, according to clean-tech market intelligence firm Pike Research. Sales are projected to grow from 3 million units in 2011 to 37.3 million units per year by 2020, according to the firm. Stop-start vehicles (SSVs) also go by the names of micro hybrids, idle-stop vehicles, or a variety of technologies branded by automakers. The technology offers reductions in fuel consumption and CO2 emissions of 5-10%. SSVs require more robust batteries and starter systems than are found in conventional combustion-engine vehicles. They are typically priced at a small premium over them but are priced considerably less than more capable and complex hybrid-electric vehicles.