Seattle Tacoma International Airport’s operator, The Port of Seattle, is making the move to renewable natural gas (RNG) in a bid to reduce their carbon footprint further. Early this year, the Port announced a Request for Proposals, calling for renewable natural gas service to supply Sea-Tac Airport’s boilers and bus fueling system. These are responsible for more than 80 percent of the Port-owned emissions.
Renewable natural gas, also known as biomethane, is a natural gas produced by the decomposition of organic matter, typically produced by landfills, wastewater treatment plants, and food and animal waste digesters.
How much the project will cost or where the RNG would be sourced from will depend on the proposals the Port will receive. If proposers offer a full replacement of the Port’s gas supply, it would result in GHG emissions reductions of 18,000 metric tons per year.
The Port of Seattle has adopted aggressive GHG reduction goals under its Century Agenda, with the aim to reduce emissions from its own operations by 50 percent from 2005 levels by 2030, and to be carbon neutral or carbon negative by 2050. Replacing fossil natural gas with RNG would put the Port ahead of its 2030 goal, and well on the way to achieving the 2050 goal. The company has achieved and maintained Level 3 Optimisation of Airport Carbon Accreditation since 2016.
Moving South-East on the map of USA, another groundbreaking initiative has been taken up by the only carbon neutral airport in North America: Dallas Fort Worth International Airport. What’s new? On top of their usual level of cutting edge Climate Action, the airport has now decided to team up with the Finnish company developing renewable fuels called Neste. Neste is the world's largest producer of renewable diesel refined from waste and residues, introducing renewable solutions also to the aviation and plastics industries.
This new collaboration will explore the use of renewable jet fuel for aircraft stationing at DFW, helping the airline partners of the airport to bring down emissions from their operations, with a particular focus on CO2 emissions. It doesn’t stop there. The newly established partners will also look for additional methods to improve sustainability at the airport through the assessment of the logistics and supply chain options to lay the foundation for setting up a potential renewable jet fuel supply at DFW.
Care to know more about DFW’s environmental work? Watch this video.