TMB set to reduce CO2 emissions by 27,900 tonnes in 4 years

TMB set to reduce CO2 emissions by 27,900 tonnes in 4 years

21/04/2018 - 10:30

Public transport. The municipal operator will reduce CO2 emissions by 27,900 tonnes in 4 years by replacing diesel buses with hybrids and electric vehicles.

Public transport is driving Barcelona's fight against climate change when it comes to the fossil fuel reductions and economic decarbonisation outlined in the Paris agreements. From now until 2020, 449 units in the first-generation compressed gas and diesel bus fleet will be replaced by 449 Euro 6 classified hybrid, electric and gas vehicles.

Barcelona Metropolitan Transport (TMB) is in the process of replacing 449 diesel and first-generation compressed natural gas buses with hybrid, electric and more advanced natural gas buses, in order to reduce carbon dioxide emissions (CO2), one of the causes of global warming.

Over the four years from 2017 to 2020, this second environmental conversion of the bus fleet will save 27,880 tonnes of CO2, which will amount to more than 50,500 tonnes in the total calculation to 2023.

Last year the saving was 593 tonnes and it is forecast to be 6,011 tonnes in 2018. Compared to CO2 emissions from previous years, the savings will range between 7% by 2018 and 15% by 2020, compared to the averages achieved in the four-year-period 2011-2015.

TMB’s growing investment in its fleet (30.6 million euros in 2016, 38.2 million euros in 2017 and 42.3 million euros in 2018) is aimed not only at reducing the age and increasing the reliability of transport vehicles, but also at minimising their environmental impact.

The fuel consumption of a hybrid bus, and therefore also CO2 emissions, are on average 30% lower than those of an equivalent diesel car, and as much as 45% in some models. In the case of an electric bus, the reduction is 100%. Electric traction also reduces noise, vibrations and improves the vehicle’s traction, leading to a clear improvement in comfort.

Thus, from now until 2020, 449 units in the first-generation compressed gas and diesel bus fleet will be replaced by 449 Euro 6 classified hybrid, electric and gas vehicles.

This equates to an increase from 205 hybrids at the end of 2017 to 393 and from 4 electric vehicles to 56. The gas fleet will remain around 380 units, and only electric vehicles will be purchased for the auxiliary fleet.

The process is accelerating in 2018, which will see the incorporation of 254 buses running on these clean technologies in different consignments.

The TMB bus fleet already made a first round of environmental changes from 2011 to 2014, which means that it currently has no vehicles with an environmental category lower than Euro 3. To achieve this, 70 diesel buses and 13 compressed natural gas buses were transformed into hybrids. In addition, 425 diesel buses were equipped with SCRT filters, which retain nitrogen oxides and fine particles, the two pollutants with the greatest impact on the local environment and public health.

With these measures, the use of the environmental qualities of compressed natural gas, which powers 35% of the vehicles, and the focus on making greener purchases (always selecting the most sustainable vehicle from among those offered by the automotive industry), TMB’s bus fleet positioned itself as the cleanest in Europe. They were awarded this title in 2015 by the International Association of Public Transport (UITP).

TMB’s commitment to reducing emissions has been included in the Spanish Ministry of Agriculture, Fisheries, Food and the Environment’s FES-CO2 programme of incentives for low carbon activities, where it is incorporated as one of the Climate Projects, with a maximum economic contribution of 500,000 euros up until 2023. It is worth noting that TMB is the only urban public transport company in the whole of Spain to receive this money, which is technically implemented as a purchase of the emission savings generated by TMB’s new buses.

Source: TMB

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