By the early 2012, the government in London, England, has had a plan to implement the policy on London buses that operate on must use hybrid engines and pass the feasibility test as environmentally friendly buses.

This is supported by the Swedish automaker, Volvo has plans to supply 300 units of the hybrid engine buses for transportation in London, England. 300 units of the 7700 serial bus has been equipped with engines with a system of i-SAM parallel hybrid.

However, before the bus is used as an instrument of transport in London. Local authorities will test the bus engine, and if passed the feasibility test, the bus will begin operating in February 2012. All buses are hybrid passed feasibility trial will be painted red.

“Within the next few months these buses will be tested. I hope that the process will show that we have built an environmentally friendly buses that can contribute to improving air quality in London, “said Boris Johnson, Mayor of London, England.

Furthermore, the latest generation of the bus was able to reach 10 miles per gallon or about 4.5 km per liter, nearly 40 percent more efficient than ordinary double-decker bus which only use diesel power. London is already having some hybrid buses, but buses with the latest model is 15 percent more efficient than the previous generation bus.
Although the 4.5 km per liter did not seem significant progress, but if every bus in London using hybrid technology, the emissions of nitrogen oxides can be reduced by 57 percent. Carbon dioxide emissions can be reduced to 230 thousand tons per year