Pittsburgh International Airport announced the competition of its unique gas- and solar-powered microgrid last week, according to 90.5 WESA.

The microgrid is the first of its kind in the world and will have the capacity to provide all the energy the airport needs, operating independently from the traditional electric grid.

Although the microgrid can operate independently, it is still interconnected with the larger electric grid. In the event of an on-site problem with power generation, the airport can still draw electricity from the grid. Additionally, the interconnected microgrid can push power out to the grid.

The airport owns the land where the microgrid is located, but Peoples Gas operates the facility. There was no upfront cost, however, Pittsburgh International Airport signed a 20-year contract to buy their electricity from Peoples Gas.

Learn more: 90.5 WESA > Pittsburgh International Airport completes gas- and solar-powered microgrid