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First Hybrid Urban LPG/Electric Bus Launched in Europe

Spanish LPG company Repsol and bus manufacturer Castrosua have launched the first hybrid urban bus with an electric/Autogas engine. The new vehicle, named Tempus Autogas, jointly developed by the research and development departments of the two Spanish companies, was launched at the FIAA (International Bus and Coach Show), held in Madrid from 23rd to 26th October.

The new hybrid Tempus Autogas was one of the main innovations at FIAA 2012 and is at the forefront of urban public transport vehicles, offering significant environmental and economic benefits. Repsol World LPG Business Development Director, Eduardo Romero, stressed at the launch presentation that the bus, developed entirely in Spain, will offer a cheap, convenient and easy solution for fleets of all sizes, and that Repsol will guarantee the required supply, storage and acessbility for the entire Iberian peninsula. Furthermore he noted Repsol's strong partnership with Castrosua would ensure demand for the bus is met both within and outside of Spain.

The Tempus Autogas incorporates technology from General Motors and Siemens and features an electric traction engine supplied by three batteries that are recharged by a thermal engine running on Autogas, and has a range of 300km in hybrid mode and 60km in battery only mode. The vehicle's batteries can also be plugged into mains electricity for recharging. The driver has the option to disengage the LPG generator in areas which require zero or near zero emissions, and then reconnect it once in less restricted areas thus re-charging the battery and supplying the electricity for the electrical engine while on the move.

The technology used in the Tempus Autogas enables fuel savings of up to 40% compared to conventional vehicles, depending on the route the vehicle takes and its operating level. It is also very quiet and releases significantly fewer NOx, and particularly CO2,  emissions, as shown in tests adopting the methodology used in the Climate Project by the Spanish Climate Change Office at the Ministry of Agriculture, Food and the Environment.

Along with urban air quality improvements, noise reductions, and fuel savings, the hybrid Tempus AutoGas urban bus offers the latest in driving technology and passenger comfort. The bus is available in congifurations of 9.6 metres to 11.6 metres in length.


The advantages of this new hybrid urban passenger vehicle provide an opportunity for governments in their ongoing efforts to achieve sustainable urban transport and to lower operating costs. The Tempus Autogas brings both features together, putting it in a position to receive government subsidies of up to 30,000 Euros per vehicle.