messages.role: user
messages.content: how long has cary north carolina had solar powered buses
messages.role: assistant
messages.content:  As of my last update in early 2023, Cary, North Carolina, had been operating solar-powered buses since 2019. The city partnered with Proterra, an electric bus manufacturer, to introduce these eco-friendly buses into its public transportation fleet. The initiative aimed to reduce greenhouse gas emissions and promote sustainable transportation options for residents.
  
    Please note that the information provided here is based on the latest available data as of early 2023. For the most current information on Cary's solar-powered buses, I recommend checking the city's official website or contacting the local transit authority directly.
messages.role: user
messages.content: please find out when they started implementing these practices