Resources for Retail Electric Suppliers

Load Profile Classifications

Background Ameren assigns load profile classifications at the service point level (not the account level). This means that if an account has multiple electric service points (e.g. an account with a DS2 service point, a DS3 service point, and a DS5 service point) then each service point will be assigned its own load profile classification. Load profile classifications are only assigned to electric service points that are scalar (non-interval) metered. Interval metered service points do not have load profile classification assignments. High and low temperatures are used as input variables to fourteen of the fifteen settlement load profile models. The one exception is the LITE (lighting) load profile classification. Because each Ameren Illinois service territory (AmerenCIPS-ME, AmerenCIPS, AmerenCILCO, and AmerenIP) uses temperature data from a different city or cities, the resulting output settlement load profiles differ by Ameren Illinois service territory. Thus, while there are fifteen unique load profile classifications, there are a total 57 settlement load profile products. Immediately below is a breakdown of the fifteen load profile classifications. At the bottom of this page is a listing of the Ameren Illinois service territories and their respective city or cities used for high/low temperature data.

DS1 – Residential Service Points
	RESDHH	– High summer use; High winter use
	RESDHL	– High summer use; Low winter use
	RESDLH	– Low summer use; High winter use
	RESDLL	– Low summer use; Low winter use

DS2 – Non-Time of Use Commercial & Industrial Service Points
	DS2HH	– High summer use (> 5000 kWh); High winter use (> 4700 kWh)
	DS2HL	– High summer use (> 5500 kWh); Low winter use (0 – 4700 kWh)
	DS2LH	– Low summer use (0 – 5500 kWh); High winter use (> 4700 kWh)
	DS2LL	– Low summer use (0 – 5500 kWh); Low winter use (0 – 4700 kWh)
	In the four DS2 load profile classifications above, summer is defined as the months of June, July, August, and September. Winter is defined as the months of December, January, and February.

DS3 – Time of Use Commercial & Industrial Service Points
	DS3HH	– Load factor > 60%; Summer peak energy percentage > 45%
	DS3MH	– Load factor > 40% and < 60%; Summer peak energy percentage > 45%
	DS3LH	– Load factor < 40%; Summer peak energy percentage > 45%
	DS3HL	– Load factor > 60%; Summer peak energy percentage < 45%
	DS3ML	– Load factor > 40% and < 60%; Summer peak energy percentage < 45%
	DS3LL	– Load factor < 40%; Summer peak energy percentage < 45%
	The load factor used in determining DS3 service point load profile classifications is a twelve month load factor. Load factor is the total energy consumed in a given time period divided by the peak demand during that time period multiplied by the number of hours in the time period. For example, the formula for calculating the load factor for a twelve month period of time is: Load Factor = Total Energy / (Peak Demand * 8760 hours) The summer peak percentage used in determining DS3 load profile classifications is the percentage of energy used during on-peak periods of the four summer months (June, July, August, and September) to the total energy used for the four summer months.

DS5 – Lighting Service Points
	LITE	– Used for all lighting service points

High and low temperatures used as input variables to the settlement load profile models are assigned to each Ameren Illinois service territory as follows:
	AmerenCIPS-ME	– assigned St. Louis, MO temperatures
	AmerenCIPS	– assigned Springfield, IL temperatures
	AmerenCILCO	– assigned Peoria, IL temperatures
	AmerenIP	– assigned Decatur, IL (35%), Belleville, IL (50%), and Peoria, IL (15%) temperatures