Cartagena's bus station is situated Avenida Trovero Marín, in the spanish city of Cartagena (region of Murcia), close ot other public transports such as the railway station of Via estrecha and the railway station of ADIF. In this station are operating diverse companies of public transport, the most important being ALSA, who also manages the building, LYCAR and COSTA AZUL. 

The bus station, inaugurated in 1995, covers a built area of ​​3891 m2, on a plot of 11441 m2, distributed on a ground floor where are installed 37 platforms and 5 floors of which only the first is operational, where is the hall, the passenger circulation area, the sales counters, the toilets, the cafeteria and the shops.

The energy studies carried out made it possible to identify, as main energy consumption, the lighting of the hall, not air-conditioned. The following actions were undertaken as part of the SUDOE STOP CO2 project:

- The application of the "Energy Management Methodology in Public Transport Stations Using Digital Modeling Tools" has identified and simulated different alternatives, with the aim of improving the energy efficiency of the building and reduce their CO2 emissions.

- One of the solutions evaluated and finally implemented was the installation of photovoltaic solar panels in order to generate electricity necessary for the self-consumption of the bus station, thanks to the meteorological conditions and the characteristics of the building.

- Another of the implemented solutions was the installation of a control platform, as much of the energy consumption of the building as other environmental variables, such as the occupation of the building, the conditions of comfort and meteorological variables. This system, which will be integrated with the city's Smart City platform, simply displays the information collected, through the different control screens.