of buses were spread in time, from the end of 2007 and over the first half of 2008. One novelty applied in the buses for the Dubai RTA was a more efficient air-conditioning system and systems protecting the engine from sand storms. Special curtains of cool air have been applied in the buses, too, to prevent heat from entering the bus through open doors. SWRT Wallonia Société Régionale Wallonne du Transport (regional carrier of the Belgian region of Wallonia) ordered 208 hybrid buses of Solaris in 2017. Under the EUR 105 million commission the producer supplied Solaris Urbino 12 Hybrid buses of the 4 generation. The deliveries were spread over a period of two years – 97 buses were supplied in 2017 and another 111 were shipped over in 2018. MZA Warsaw In March 2019, Solaris won the tender organized by MZA Warsaw, the subject of which was the delivery of 130 electric buses. The contract was signed on July 22, 2019. The vehicles will take to the streets of Warsaw in 2019 and 2020. The contract is worth PLN 399.5 million (roughly 89.5 million euro) and was the largest electric bus order to date in Europe. Solaris submitted the only tender. ATM Milan In July 2019, Solaris won an order for the supply of 250 electric buses with a length of 12 m for a carrier from Milan, winning the bid against Mercedes. It was a tender for electric buses worth up to EUR 192 million. See also Autosan Electric bus Electric vehicle conversion Hispano Carrocera References External links Construcciones y Auxiliar de Ferrocarriles Electric bus manufacturers Hybrid electric bus manufacturers Polish brands Tram manufacturers Trolleybus manufacturers Vehicle manufacturing companies established in 1999 1999 establishments in Poland Electric vehicle manufacturers of Poland