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Energy Quote

The world is full of tradeoffs, and sometimes 'renewable power' activists fail to recognize that. Solar energy collectors must displace a tremendous amount of natural landscape to produce any significant amount of energy. And anything less requires a great deal of financial expenditures for very little and very inconsistent power.

Ben Lieberman

Hybrid-Electric Vehicle

A Brief Description:

HEV is a vehicle using gasoline (petrol) or diesel to power internal-combustion engines and electric batteries to power electric motors. They are low-polluting and low-petroleum consuming cars.

Modern mass-produced hybrid cars recharge their batteries by capturing kinetic energy via regenerative braking. When cruising or in other situations where just light thrust is needed, "full" hybrids can use the combustion engine to generate electricity by spinning a generator (often a second electric motor) to either recharge the battery or directly feed power to an electric motor that drives the vehicle. This contrasts with all-electric vehicles which use batteries charged by an external source such as the grid, or a range extending trailer.

Hybrid cars have gained more and more popularity as oil price surges and concern over global warming looms. However, it is also clear that the high premium on hybrid car price won't get paid out of saving on gas bill over the life of the vehicle, at least at the current gas price of about $2-3 per gallon.

There are more variations of HEVs including plug-in hybrid vehicle (PHEV) and hybrid motocycle.

5 Feb 2007 01:10:09

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