DATE: September 17, 2019
TO: Stephen P. Metruck, Executive Director
FROM: Keith Warner, Aviation Utility Business Manager
Keithly Espiritu, Utility Analyst
Mike Tasker, Senior Manager – Aviation Facility & Infrastructure
Jeffrey Brown, Director of Aviation Facilities and Capital Program
SUBJECT: Natural Gas Supply for Airport and CNG Fleet
ACTION REQUESTED
Request Commission authorization for the Executive Director to approve the action to execute
a contract for Natural Gas (NG) supply to the Seattle-Tacoma International Airport (Airport) for
facility heating and for Compressed Natural Gas (CNG) fleet fuel.
EXECUTIVE SUMMARY
The Port intends to have two separate agreements related to NG and Renewable Natural Gas
(RNG) delivery to the Airport. While the procurement for RNG is currently in the selection
process, staff have already determined that a NG delivery contract is also necessary because
the RNG supply will only meet about 65% of the Airport demand, including 100% of the CNG
station demand. To supplement the full required load and to take advantage of low prices, the
Port will need a new NG contract. The current NG supply contract, S-00317449, is due to expire
October 31, 2019 and a new contract must be issued to maintain continuous (uninterrupted)
NG supply to the Airport and CNG fueling station.
JUSTIFICATION
It has been identified, that the anticipated RNG contract may not be executed until Q4 2019 -
Q1 2020, and the contract will not be able to supplement the full load for heating the Airport,
thus the Port must procure additional NG supply from non-renewable sources to accommodate
the full required load. The Port has also exhausted all options of extension for the existing NG
contract and must engage in a competitive bidding process for a replacement contract. A
contract with a private supplier has been identified to be more cost effective than obtaining gas
from the local public utility, Puget Sound Energy (PSE).