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UCI |
Update Customer Information. |
UFE |
Unaccounted for Energy (UFE) is a settlement amount allocated to sites
and represents energy not accounted for by meters and losses. UFE is
calculated hourly by the LSA for each Zone and the amount is distributed
evenly to all sites for that hour (except for TA and direct connect
sites)UFE for each hour is the difference between (a) the system total
load for the hour and (b) the sum of the estimated hourly loads at the
Customer meters, plus their allocated losses. All references to UFE in the
SSC refers to UFE on electric distribution systems.. See Benchmark
Reports for Zone UFE. |
Unaccounted for Energy (UFE) |
A settlement amount allocated to sites
and represents energy not accounted for by meters and losses. UFE is
calculated hourly by the LSA for each Zone and the amount is distributed
evenly to all sites for that hour (except for TA and direct connect
sites)UFE for each hour is the difference between (a) the system total
load for the hour and (b) the sum of the estimated hourly loads at the
Customer meters, plus their allocated losses. All references to UFE in the
SSC refers to UFE on electric distribution systems.. See Benchmark
Reports for Zone UFE. |
Unbundled |
The separate pricing and provision of electricity service independent of equipment cost or charge. |
Unbundled Bill |
A bill which provides a breakdown of the various cost elements included in a customer invoice such as electric energy costs,
transmission, distribution, retail charges and other service charges identified by the regulator. |
Unbundling |
Separating vertically integrated monopoly functions into their component parts for the purpose of separate service offerings. |
Unit Energy Cost |
The cost per megawatt of energy calculated by the Total Energy Charges
divided by the Total Energy (MWh) consumed. |
Unit of Measurement. (UOM) |
| A |
ampere |
| A/m |
amperes per meter |
| GW |
gigawatt |
| GWh |
gigawatt-hour |
| h |
hour |
| hp |
horsepower |
| Hz |
hertz |
| kV |
kilovolt |
| kVa |
kilovolt-ampere |
| kVar |
kilovolt-ampere-reactive unit |
| kVarh |
kilovar-hour |
| kW |
kilowatt |
| kWh |
kilowatt-hour |
| kW-day |
kilowatt-day |
| kW-year |
kilowatt-year |
| kV/m |
kilovolts per meter |
| MW |
megawatt |
| MWh |
megawatt-hour |
| ohm |
ohms |
| V |
volt |
| VA |
volt-ampere |
| var |
volt-ampere reactive unit |
| varh |
volt-ampere-reactive-hour |
| V/m |
volts per meter |
| W |
Watt |
| Wh |
watt-hour |
|
Unit Price |
Total revenue derived from the sale of product during the reference month divided by the total volume sold; also known as the weighted average price.
Total revenue should exclude all taxes but include transportation costs that were paid as part of the purchase price. |
Uplift |
An hourly payment made to importers when their energy is dispatched to
meet system demand and sold into the pool at a price higher than the
hourly pool price. An uplift hour cannot be confirmed until after the
hour when the hourly pool price is determined. Once the pool price is
posted, an importer can determine if the offer price of their dispatched
block was greater than the pool price, in which case, uplift would be
paid. |
Usage |
Usage is a load settlement term for the amount of energy consumed. Usage amounts are determined from meters or from connected load for non-metered sites. Amount of energy consumed on site is reported in mWh. Source of data is accumulative meters, interval meters and, in the absence of meter data, estimates. |
Usage Cost ($) |
Usage Cost is the cost of energy consumed at the hourly Power Pool price. |
Usage Delivery Cost |
This number is derived from all wires invoices for the month divided by
Usage MWh. This number represents the average cost to deliver energy to
your sites. |
Usage Pool Charge |
Cost of consumed energy at the pool price. |
Utility |
The name of the LSA. |
| V |
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VEE |
Validating, Editing and Estimation. These are the steps required for testing in order to produce settlement ready data. |
Vented |
Gas released into the air on the production site or at processing plants. |
Vented/Flared |
Gas that is disposed of by releasing (venting) or burning (flaring). |
Virtual Metering Point |
An effective point of measurement, that may or may not be physically
locatable, where active energy or reactive energy is deemed to have been
transferred through the point that is derived from one or more metering
points. |
Volt |
The volt is the International System of Units (SI) measure of electric potential or electromotive force. A potential of one volt
appears across a resistance of one ohm when a current of one ampere flows through that resistance. Reduced to SI base units, 1 V = 1 kg
times m2 times s-3 times A-1 (kilogram meter squared per second cubed per ampere). |
Voltage |
The difference in electrical potential between any two conductors or between a conductor and ground. It is a measure of the electric
energy per electron that electrons can acquire and/or give up as they move between the two conductors.
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Voltage Reduction |
Any intentional reduction of system voltage by 3 percent or greater for reasons of maintaining the continuity of service of the bulk
electric power supply system. |
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Watt (W) |
The unit of electrical power equal to one ampere under a pressure of one volt. A Watt is equal to 1/746 horsepower. |
Watthour (Wh) |
The electrical energy unit of measure equal to one watt of power supplied to, or taken from, an electric circuit steadily for one hour. |
Wattmeter |
A device for measuring power consumption. |
WCI |
Wholesale Class Information (hourly for zone for profile and loss group). |
Weighed Pool Price |
An adjusted monthly average pool price based on the site's profile. It is calculated by the Total Gross Energy divided by the Total Energy (MWh). |
Wheeling |
The transmission of electric energy generated by one party to another using the transmission system of a third party. The wheeler does not own, generate or purchase the electricity being transported.
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Wholesale Competition |
A system whereby a distributor of power would have the option to buy its power from a variety of power producers, and the power producers would be able to compete to sell their power to a variety of distribution companies.
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Wholesale Electric Power Market |
The purchase and sale of electricity from generators to resellers (retailers), along with the ancillary services needed to maintain reliability and power quality at the transmission level. |
Wholesale Settlement Details (WSD) |
This transaction provides daily site-specific initial daily, initial
monthly, interim and final settlement results to Retailers for energized
sites enrolled to them. The site characteristics in this transaction are
those characteristics in effect at the end of the settlement day. |
Wholesale Settlement Information (WSI) |
The wholesale settlement process flow is responsible for providing the
settled load to the retailers, the Pool and the TA. The settled load is
provided to retailers on a daily basis to let retailers know the usage
of their customers. This will allow retailers to understand their
current financial obligations and plan power purchases. The settled load
is provided to the Pool daily (aggregated by the retailer) to inform the
Pool of retailer commitments. The Pool uses this information to prepare
an invoice for each retailer (i.e. consumption (in hourly intervals)
multiplied by the hourly Pool price). The timing of such invoices is
negotiated between the Pool and the retailer. To apply the distribution
tariff for each site, the WSP requires the settled load, other load data
and site information. The results are aggregated for each retailer
operating within the settlement zone. The WSP uses this information to
prepare an invoice for each retailer. The TA receives validated POD
(point of delivery) data from the WSP (MDM) on a daily basis. Each day
must be provided to the TA by noon of the following day. Changes can be
provided to the TA for any day within one month up to the 9th business
day of the following month. At that time, the previous month is
considered closed. The reconciliation and final settlement processes
will incorporate these changes. In some cases, the retailer is directly
connected to the POD and must follow the same rules as the WSP (i.e.
send POD data and receive invoice for payment). The TA performs a
validation of the POD data prior to sending it to Settlement and the
Pool (it is expected that the TA will provide POD data on the settled
day +2). In addition to POD data, the TA sends POS
(Point of supply), and POI (point of interconnection) data to the Pool.
The Pool uses this data to calculate losses. Losses are calculated and
an invoice is prepared and sent to the TA for payment. |
Wind Energy |
Kinetic energy present in wind motion that can be converted to mechanical energy for driving pumps, mills, and electric power generators.
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Wind Farms |
A group of wind turbines interconnected to a common utility system through a system of transformers, distribution lines, and (usually) one
substation. Operation, control, and maintenance functions are often centralized through a network of computerized monitoring systems, supplemented
by visual inspection. |
Wind Turbine |
Wind energy conversion device that produces electricity; typically three blades rotating about a horizontal axis and positioned up-wind of the
supporting tower. |
Wires Charge |
A broad term referring to fees levied on power suppliers or their customers for the use of the transmission or distribution wires. |
Wires Service Provider ID |
A 4-digit number that uniquely represents each Wires Service Provider
operating within Alberta. WSP IDs are prefixed with a "0". |
WO |
Wires Owner. The owner of an electric distribution system |
WSD |
Wholesale Settlement Details. |
WSP |
Wires Service Provider. An entity that operates an electric distribution system.
In most cases the Wires Owner and the Wires Service Provider are the same entity.
However, some Wires Owners, particularly some REAs, have contracted with another
Wires Owner to serve as Wires Service Provider for their Customers. |
WSP Consumption |
During a settlement run reconciliation process, unaccounted for
consumption can occur. In order to allocate this unaccounted for
consumption fairly, we compare what is calculated for a site for a date,
versus what the LSA has calculated for that site for that day. |
Wires Service Provider ID |
A 4 digit number that uniquely represents each Wires Service Provider operating within Alberta. WSP IDs are prefixed with a \"0\". |
WSS |
Wholesale Settlement Summary |
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