The US Federal Aviation Administration has awarded a $2 million grant to San Diego International airport to reduce use of conventional fuels at the facility in an effort to improve air quality.
FAA is awarding the airport the grant through its Voluntary Airport Low Emission programme (Vale).
Dubbed "The Green Build" at San Diego the grant will enable the airport to install a land-side power unit and pre-conditioned air units at 10 new aircraft gates and seven air units at existing gates.
FAA explained the units allow aircraft arriving at gates to shut off their auxiliary power units and connect to a cleaner central heating and cooling system, save fuel and reduce aircraft emissions on the ground.
In its fiscal year 2011 FAA provided grants under the Vale programme for 12 low emissions projects at 11 airports representing a total investment of $140 million split between $110 million in federal grants and $30 million in local airport matching funds.
FAA stated reduced emissions by the airports participating in the Vale programme would remove the equivalent of 17,650 cars and trucks from the roads annually.