In June this year, the international airport in New Delhi adopted green energy, using only hydro and solar power for all of its energy needs. The Delhi International Airport Limited (DIAL), a GMR Infrastructure Limited-led (GIL) consortium, which manages and operates the Delhi airport, has signed a long-term power purchase agreement (PPA) with a Himachal Pradesh-based hydropower producing company for the supply of hydroelectricity to the airport until 2036. Out of the total 100% needs, the CSMIA procures around 5% of the airport's electricity requirement through its onsite solar generation and 95% from other green sources such as hydro and wind energy