An association that represents 192 local natural gas utilities that deliver gas to
more than 53 million homes and businesses across the nation. The AGA is a clearinghouse
for gas energy information and a catalyst in technical and energy policy matters.
Aggregation Charge
A charge that applies to all transportation gas that crosses gate stations in the
WPS gas distribution system.
Annual Supply Backup Service
An optional service for gas transportation customers who have purchased
Peak Day Backup Service.
This option allows them to purchase firm gas commodity from WPS for
a portion of their gas load.
ANR Pipeline Co.
The interstate pipeline company that delivers natural gas to WPS. ANR is regulated by Federal Energy Regulatory Commission (FERC).
Approved Nomination
The amount of gas nominated by a transportation customer (or the customer's supplier
or broker) and recognized by ANR Pipeline Co. as gas delivered to the WPS city gate station for that customer's use.
British thermal unit (Btu)
A measure of heat energy, representing the amount of heat needed to raise one pound
of water 1 degree Fahrenheit at sea level
Central Clock Time
Refers to the time on clocks in the Central Time Zone, whether it is Central Standard
Time or Daylight Savings Time.
Certificate of Public Convenience and Necessity (CPCN)
A special permit, commonly issued by a state Commission, which allows a utility to
engage in business, construct facilities or perform some other service. Also, a permit
issued by the Federal Energy Regulatory Commission allowing a party to transport natural
gas, or sell it for resale, in interstate commerce, or to construct, acquire or operate
any facilities necessary for that purpose. The Commission involved may attach any
reasonable terms and conditions that public convenience and necessity may require.
City Gate
The point at which WPS
accepts delivery of gas from ANR Pipeline or Guardian Pipeline.
Company Use Gas / Gas Lost and Unaccounted For
Gas used during the distribution process, and gas that flows into the WPS
distribution system but is never metered as being used by a customer or the utility. An
adjustment factor is applied per therm to account for this.
Daily Balancing
Utilities and transportation customers must balance gas use every day, comparing the
amount of gas nominated with actual use to account for all gas that flows through a
pipeline.
Daily Cashout
A method used by transportation customers to balance daily actual use with
nominated gas use. Daily cashout was developed by the Public Service Commission
of Wisconsin to encourage transportation customers to keep their nominations as
close to actual use as possible.
Daily Nomination
A company's estimated gas use for the day.
Degree Day, Cooling
A measure of the need for air conditioning (cooling) based on temperature and
humidity. Although cooling degree days are published for many weather stations, a standard
has not been generally accepted.
Degree Day, Heating
A measure of the coldness of the weather experienced, based on the extent to which
the daily mean temperature falls below a reference temperature, usually 65 degrees
Fahrenheit.
Delivery Point
The point at which gas leaves a transporter's system, completing a sale or
transportation service transaction between the pipeline company and a sale or
transportation service customer.
Dekatherm (DTH)
A unit of heating value equivalent to 10 therms or 1,000,000 Btus.
Docket
A docket number is assigned to each issue the Public Service Commission of Wisconsin
places on its agenda, in order to more easily track its progress through the process.
Environmental Protection Agency (EPA)
A federal agency that protects human health and safeguards the natural
environment — air, water and land.
Federal Energy Regulatory Commission (FERC)
A federal agency that regulates interstate wholesale energy transactions, including
gas transportation and electric transmission, to ensure reasonable rates.
FERC Order 636
A FERC ruling effective Nov. 1, 1993, that essentially prohibits pipeline companies
from buying and selling gas. Order 636 unbundled gas services, giving customers more
options for buying, transporting and storing natural gas.
Firm System Sales Service
The utility provides uninterrupted gas supply and gas distribution service, except
in emergencies.
Force Majeure
A superior force, "act of God" or unexpected and disruptive event that may relieve
a party from a contract or obligation.
Gas Day
A period of 24 consecutive hours beginning at a specified hour (9:00 CST) on a given
calendar day and ending at the same specified hour on the next calendar day.
Gas Technology Institute (GTI)
The research, development and commercialization organization of the natural gas
industry.
Henry Hub
A pipeline interchange located in Vermillion Parish, Louisiana, which serves as the
delivery point for natural gas futures contracts.
Hub
A market or supply area pooling/delivery area where gas supply transactions occur
to facilitate the movement of gas between and among interstate pipelines. Transactions
can include a change in title, a change in transporter or other similar items.
Interruptible System Sales Service
The utility provides gas supply and gas distribution service. However, customers
agree to have their service interrupted when demand is high. Interruptible rates are
lower than firm system rates.
Intra-day Nomination
A change in a gas nomination that is made between the hours of 6 p.m. (the evening
before the gas day starts) through 5 p.m. of the gas day.
Liquefied Natural Gas (LNG)
Natural gas that has been liquefied by reducing its temperature to minus 260 degrees
Fahrenheit at atmospheric pressure. It remains a liquid at minus 116 degrees Fahrenheit
and 673 psig. It occupies 1/600 of the volume of the vapor at standard conditions.
Local Distribution Company (LDC)
WPS and other utilities that distribute natural gas from the
city gate to customers' meters. ANR Pipeline Co. delivers gas to the WPS city
gate.
Marketer (Broker)
A nonregulated buyer and seller of natural gas.
Maximum Daily Quantity (MDQ)
Refers to the maximum daily consumption of natural gas, in dekatherms, used by
customers of WPS in the Wausau and Manitowoc areas.
MMBtu
A thermal unit of energy equal to 1,000,000 Btus (that is, the equivalent of 1,000
cubic feet of gas having a heating content of 1,000 Btus per cubic foot, as provided by
contract measurement terms). (See Dekatherm.)
Nominated Firm Service
An optional service offered to interruptible system customers who want firm service
for part of their gas load.
No-Notice Delivery Service
Delivery of natural gas on an as-needed basis, without the need to precisely specify
the delivery quantity in advance. No-notice delivery is generally made at the city gate
or burner tip.
Peak Day Backup Service
An optional service offered to transportation customers who want some firm service
from WPS for part of their gas load.
Pooling
Combining customers' gas usage to reduce fees for daily imbalances.
Pressure Base Correction
An adjustment factor that applies to all gas delivered to the city gate for a
customer's use. This factor accounts for the different gas measurement assumptions
WPS and ANR Pipeline Co. use.
Public Service Commission of Wisconsin (PSC)
A state regulatory agency that ensures utility services are provided to customers
at reasonable rates.
Purchased Gas Adjustment
A pricing mechanism applied to Firm System Sales Service and Interruptible System
Sales Service. WPS periodically increases or decreases the rate
charged to firm and interruptible customers for gas commodity and interstate pipeline
services, in response to changes in costs recovered for these products and services.
All Purchased Gas Adjustments are approved by the Public Service Commission of
Wisconsin.
Shipper
A transportation customer, marketer or local distribution company that holds a
natural gas capacity contract on a pipeline. The shipper is responsible for nominating
and transporting natural gas.
System Supply
Natural gas supplies purchased, owned and sold by the local distribution
company.
Tariff
A gas company schedule detailing the terms, conditions and rate information that
apply to various types of natural gas service. Tariffs are filed with and approved by
the Federal Energy Regulatory Commission or a state regulatory body.
Therm
A measure of the heat content of gas equal to 100,000 Btus.
Transportation Service
The customer (or the customer's broker) delivers gas commodity to the WPS distribution system. WPS then delivers this gas commodity
to the customer's meter.
Wisconsin Distributor Group (WDG)
A group of Wisconsin gas utilities, including WPS. WDG formed
20 years ago to address ANR Pipeline issues at FERC.