Warm Weather Warning: Over-delivery:
Public Service Company of Colorado, an Xcel Energy Company
March 16, 2015
IMPORTANT INFORMATION – PLEASE READ THIS ENTIRE MESSAGE:
Unseasonably warm weather is forecast for an extended period beginning this week,
with long term projections indicating potential for a warmer-than-normal spring. This,
coupled with the annual end-of-season storage withdrawals currently in progress limits
our ability to absorb over-deliveries during warmer periods. This limitation is expected
to last through mid-May, which is the end of the annual contracted storage. Please
consider this when purchasing your April and May baseload volumes.
Shippers – please take greater care to balance supplies with load to reduce the
likelihood of cashout penalties or triggering an over OR under-delivery OFO, both of
which are historically more likely during the spring with the reduced flexibility in
upstream storage. Also, be alert to Colorado Interstate Gas Strained Operating
Conditions, which can also trigger OFOs.
TO DO:
Unseasonably Warm weather: avoid over-deliveries:
 We cannot absorb significant over-deliveries during warm periods –
particularly those falling on weekends when loads are diminished. When
these are forecast, reduce nominations to avoid over-deliveries.
Don’t
provide extra payback gas during these days, as we won’t have storage
injection or sufficient gas loads to absorb the over-delivery.
Unseasonably Cold weather: avoid under-deliveries:
 We cannot cover under-deliveries during unseasonably cold day(s). When
these are forecast, avoid the rush on supplies and take action early to
schedule additional volumes to cover your flowing gas needs. Don’t count on
pulling gas from an imbalance bank, as we may not have sufficient gas to
cover your shortage on those days.
As I’ve stated before, we do understand that managing nominations and
imbalances can be challenging during the spring shoulder months as storage and
our daily balancing flexibility is reduced. Please contact Donna Woods (303-2734826) or Sharon Gordon (303-273-4724) who are here to help if you have
questions or concerns and need assistance.
Your actions are important and contribute to the reliable operation of our system.
We thank you in advance for your cooperation and appreciate your attention to this
matter.
Ken Buys
Manager, Gas Control