Thursday, 16 April 2009

£5000 Subsidy for battery vehicles

The government today announced a subsidy (probably from 2011) on battery-powered vehicles. I was saddened by the welter of vitriolic and grossly - ill-informed comment this generated. Even worse, much of it wasn't even the product of independent thought, but a fairly transparent regurgitation of a monumentally misinformed piece on Top Gear.

For the record
  • There are no current widespread commercial applications for hydrogen fuel cells
  • Lithium batteries (the most likely chemistry for a battery vehicle) are used in a high proportion of the world's consumer electronics
  • The very first hydrogen fuel cell car would require a vast infrastructure investment in hydrogen production and distribution (tankers, filling stations)
  • A battery vehicle with an onboard charger needs a 13 Amp socket
  • A million battery vehicles would use less than 1 % of UK generating capacity. Further growth could scale as required using incremental addition of well-understood commercial technology

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