The first airport in the country to use solar power for running its utility grid system is ___?

Cochin International Airport
A Kolkata-based solar module manufacturing company, Vikram Solar, would be installing a 100 kWp solar power facility at the airport situated Nedumbassery in Cochin. Vikram Solar would design, install and commission the solar photo-voltaic (PV) power system consisting of mounted solar panels. The panels would generate DC electric power, which unlike the general practise, would not be fed directly into the utility grid.