Glossary Terms D - F 
 
Please note that each glossary term is followed by the source of the definition.

Delivery Point or Point of Delivery (Ameren Illinois Tariff)
Delivery Point or Point of Delivery shall have the same definition as 83 Ill. Admin. Code Part 410 Subpart A: General (Section 410.10). “Point of Delivery” means the point at which the entity providing distribution facilities connects its lines or equipment to the lines or facilities owned or rented by the Customer, without regard to the location or ownership of transformers, substation or meters, unless otherwise provided for by written contract or tariffs.

Delivery Services (DS) (Ameren Illinois Tariff)
Those services that are provided by the Company that are necessary in order for the transmission and distribution systems to function so that retail Customers located in the Company’s Illinois service area can receive electric power and energy from suppliers other than the Company, and shall include, without limitation, standard metering and billing.

Delivery Voltage (Ameren Illinois Tariff)
The voltage of Company’s lines at the Point of Delivery.

Demand or Billing Demand (Ameren Illinois Tariff)
The highest average load in kilowatts (kW) during any fifteen minute interval during the time between regular meter readings. There shall be four fixed 15 minute intervals per hour with the first interval beginning at the top of the hour as registered on the meter.

Demand Side Management (DSM) (EEI)
The planning, implementation, and monitoring of utility activities designed to encourage consumers to modify patterns of electricity usage, including the timing and level of electricity demand. It refers only to energy and load-shape modifying activities that are undertaken in response to utility-administered programs. It does not refer to energy and load-shape changes arising from the normal operation of the marketplace or from government-mandated energy-efficiency standards. DSM covers the complete range of load-shape objectives, including strategic conservation and load management, as well as strategic load growth.

Determination Period (Ameren Illinois Tariff)
The calendar month for which a Market Value Adjustment (MVA) is determined for Retail Customers for which the Company procures electric power and energy supply for the BGS-FP Category of Service and the BGS-LFP Category of Service. Determination Periods means the appropriate costing period determined for Retail Customers for which the Company procures electric power and energy supply for the BGS-LRTP Category of Service.

Development (Ameren Illinois Tariff)
Multiple Premises each receiving Non-Residential Services and located on a parcel or parcels of land whose site plan or plats have been recorded with the appropriate governmental agencies.

Direct Access
The ability of a retail Customer to purchase commodity electricity directly from the wholesale market rather than through a local distribution company. A key component of the restructuring process that allows Customers to obtain access to a utility's delivery services separate from the purchase of electric power and energy from authorized suppliers.

Direct Access Service Request (DASR) (EEI)
A request used by the Company, CSMs, RESs, and MSPs to process switching and certain other requests.

Distribution System (Ameren Illinois Tariff)
The lower voltage, smaller capacity network of wires and equipment that connects the transmission system to the Customer's home or business. For purposes of determining Line and/or Service Extension applicability, means those poles, wire, and other equipment used to distribute electricity either overhead or underground at 20 kV or less.

Effective Period (Ameren Illinois Tariff)
The monthly Billing Period during which an MVA is applied to kilowatt-hours (kWhs) provided to Retail Customers. With respect to Retail Customers for which the Company procures electric power and energy supply for the BGS-FP Category of Service and the BGS-LFP Category of Service, the Effective Period is the monthly billing period occurring two months after the Determination Period, and the March 2007 monthly Billing Period is the first such Effective Period. With respect to Retail Customers for which the Company procures electric power and energy supply for the BGS-LRTP Category of Service, the Effective Period relates to how the costs are adjusted.

End of Business (Ameren Illinois Tariff)
5:00 p.m. CPT

Energy (Supplier Forward Contract)
Three-phase, 60-cycle alternating current electric energy expressed in units of kilowatt-hours or megawatt-hours.

Energy Efficiency Contractor (EE Contractor)
An Energy Efficiency Contractor is an entity that contracts to perform work with the primary focus being the energy efficiency ratio for a building and its appliances. For further incentives, review Ameren’s ActOnEnergy.com website.

Federal Energy Regulatory Commission (FERC) (Ameren Illinois Tariff)
The Federal Energy Regulatory Commission or any successor federal agency, commission, or department.

Filing Month (Ameren Illinois Tariff)
Filing Month means the month in which the MVA is determined and filed with the Illinois Commerce Commission.

Firm Point-to-Point Transmission Service (Ameren RES Handbook)
Transmission Service that is reserved and/or scheduled between specified Points of Receipt and Delivery pursuant to Part II of MISO's EMT.

Fixed Price Section (Ameren Illinois Tariff)
The part of the Illinois Auction through which Auction Products are procured for which charges to Retail Customers are fixed for specified periods of time.
Glossary Terms D - F
 
 
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