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The Chevrolet Volt is a plug-in hybrid vehicle manufactured by General Motors, and also sold as the Opel/Vauxhall Ampera in Europe, and marketed as the Holden Volt in Australia and New Zealand. Sales of the 2011 Chevrolet Volt commenced in the U.S. in mid-December 2010 and was released in various European and other international markets starting in September 2011. As of October 2012, the Volt and Ampera models have combined global sales of more than 33,000 units, and the leading market is the U.S. with 27,306 Volts delivered, making the Chevrolet Volt the top selling plug-in electric vehicle in the United States.
The Volt is the most fuel-efficient compact car with a gasoline engine sold in the United States, as rated by the United States Environmental Protection Agency (EPA).[3][4] The Volt operates as a pure battery electric vehicle until its plug-in battery capacity drops to a predetermined threshold from full charge. From there its internal combustion engine powers an electric generator to extend the vehicle's range if needed. Once the engine is running in this extended range mode, it may at times be linked mechanically (via a clutch) to assist the traction motor in propelling the car in order to improve energy efficiency. The Volt's regenerative braking also contributes to the on-board electricity generation.
The Chevrolet Volt has won numerous awards such as the 2009 Green Car Vision Award, 2011 Green Car of the Year, 2011 North American Car of the Year, 2011 World Green Car and 2012 European Car of the Year. However there has been some controversy and concerns regarding the Volt expressed in the media. These include the extent of the federal government participation in the Volt development during General Motors' 2009 government-led bankruptcy[5][6][7] and concerns about the battery pack fire risk in the weeks following a crash test that the National Highway Traffic Safety Administration (NTHSA) performed on a Volt in 2011.[6][7][8] At the completion of its investigation NHTSA stated that it has concluded that no discernible defect trend exists.
The 2011 Volt's lithium-ion battery (Li-ion) battery pack weighs 435 lb (197 kg) and consists of 288 individual cells arranged into nine modules. Plastic frames hold pairs of lithium-ion cells that sandwich an aluminum cooling fin. The design and construction of that aluminum plate was critical to ensuring an even temperature distribution with no hot or cool spots across the flat, rectangular cell. The battery pack has its own cooling circuit that is similar to, but independent from, the engine cooling system.
According to Edmunds.com, the price premium paid for the Volt, after discounting the US$7,500 U.S. federal tax credit, takes a long time for consumers to recover in fuel savings, often longer than the normal ownership time period. Edmunds compared the Volt (priced at US$31,712) with the same-size gasoline-powered Chevrolet Cruze (priced at US$19,656) and found that the payback period for the plug-in hybrid is 15 years for gasoline prices at US$3 per gallon, 12 years at US$4 per gallon, and drops to 9 years with gasoline prices at US$5 per gallon. At February 2012 prices, the break even period is 14 years. These estimates assume an average of 15,000 miles (24,000 km) annual driving and vehicle prices correspond to Edmunds.com's true market value estimates.
The Volt is the most fuel-efficient compact car with a gasoline engine sold in the United States, as rated by the United States Environmental Protection Agency (EPA).[3][4] The Volt operates as a pure battery electric vehicle until its plug-in battery capacity drops to a predetermined threshold from full charge. From there its internal combustion engine powers an electric generator to extend the vehicle's range if needed. Once the engine is running in this extended range mode, it may at times be linked mechanically (via a clutch) to assist the traction motor in propelling the car in order to improve energy efficiency. The Volt's regenerative braking also contributes to the on-board electricity generation.
The Chevrolet Volt has won numerous awards such as the 2009 Green Car Vision Award, 2011 Green Car of the Year, 2011 North American Car of the Year, 2011 World Green Car and 2012 European Car of the Year. However there has been some controversy and concerns regarding the Volt expressed in the media. These include the extent of the federal government participation in the Volt development during General Motors' 2009 government-led bankruptcy[5][6][7] and concerns about the battery pack fire risk in the weeks following a crash test that the National Highway Traffic Safety Administration (NTHSA) performed on a Volt in 2011.[6][7][8] At the completion of its investigation NHTSA stated that it has concluded that no discernible defect trend exists.
The 2011 Volt's lithium-ion battery (Li-ion) battery pack weighs 435 lb (197 kg) and consists of 288 individual cells arranged into nine modules. Plastic frames hold pairs of lithium-ion cells that sandwich an aluminum cooling fin. The design and construction of that aluminum plate was critical to ensuring an even temperature distribution with no hot or cool spots across the flat, rectangular cell. The battery pack has its own cooling circuit that is similar to, but independent from, the engine cooling system.
According to Edmunds.com, the price premium paid for the Volt, after discounting the US$7,500 U.S. federal tax credit, takes a long time for consumers to recover in fuel savings, often longer than the normal ownership time period. Edmunds compared the Volt (priced at US$31,712) with the same-size gasoline-powered Chevrolet Cruze (priced at US$19,656) and found that the payback period for the plug-in hybrid is 15 years for gasoline prices at US$3 per gallon, 12 years at US$4 per gallon, and drops to 9 years with gasoline prices at US$5 per gallon. At February 2012 prices, the break even period is 14 years. These estimates assume an average of 15,000 miles (24,000 km) annual driving and vehicle prices correspond to Edmunds.com's true market value estimates.
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