"We are not going to be the guinea pig any longer for BYD's experimentation on how to make these busses," Keller said. "They say they'll work on it, they'll get it done, then nothing happens and we're tired of that process and we're not going to do it anymore."

Among many of the problems, Keller said the buses experienced brake failures and the batteries didn't properly function.

BYD was supposed to supply more than a dozen 60-foot electric buses for the project. Keller said the new buses wil not be completely electric because the technology has not been developed to work in New Mexico's climate and run the length of the ART route.

Officials said the city has not paid for any of the buses that were being tested. Keller said his administration has been in contact with the Federal Transit Administration to modify the agreement so the city doesn't lose any federal funding.

While the city awaits new buses, the ART bus lanes will be utilized as double lane medians, which drivers are not supposed to cross.

BYD Released the following statement:

BYD buses and batteries are safe. This has been demonstrated on thousands of trips daily all over the world. We have worked with the City of Albuquerque from day one and dispute the Mayor's statements regarding electric bus technology, the FTA’s process, and the Altoona testing protocol. While the Mayor and his team have hosted numerous high-profile press conferences undermining Albuquerque’s commitment to clean public transportation technology, we continue to stand by our product, and the value we bring to Albuquerque and every other forward thinking community that has invested in our technology. The City has been talking to other companies for months, clearly demonstrating their intention to move away from clean transportation technology.

BYD electric buses and technology are being used all over the world safely and with great success; it’s unfortunate Albuquerque decided on this course of action.