Program Design

Demand shifting program designed to reduce peak loads on summer weekdays

Program produces substantive and measurable impacts on peak demand

Program is successful in reducing demand without changing energy consumption 

“Peak Rewards is not only effective, but happens at the optimal time of day.” Vern Porter, Manager of Power Supply Operations

2005 Program Details

Customers who have metered service points with >100 HP voluntarily sign up for program

Pre-programmed electronic timers installed on participants pumps 

Pumps automatically interrupted during peak time of 4-8 pm on predetermined weekdays

Cycling period is from June 1st to August 31st

 Program is available to Idaho rate 24 Agricultural Irrigation customers in 2005

Oregon customers will be eligible next year

 Budget for program is $1.4 million

2005 Program Details (continued)

Irrigation customers receive credit against their demand charge. 

Current demand charge for irrigation customers is $4.19 / kW

1 day option credit: $2.01 / kW

2 day option credit: $2.51 / kW

3 day option credit: $2.76 / kW 

Most customers should expect to see an 8% savings per service point.

895 service points operated by 254 growers

Participants / Option

24% of eligible customers signed up

Option S P Qty. HP1 day / week 629 69,993

2 days / week 155 33,0343 days / week 110 25,700

Participants by Region

34%

56%

2%

8%

Southern

Eastern

Capital

Canyon/Payette

Average MW Reduction

Mon Tue Wed Thur Fri MW

(kW) (kW) (kW) (kW) (kW) AverageJune 16,975 40,323 39,944 39,111 16,394 30.55

July 15,914 37,803 37,447 36,667 15,370 28.64

August 12,885 29,691 30,088 28,763 12,058 22.70

1,800

2,000

2,200

2,400

2,600

2,800

3,000

10:00AM

11:00AM

12:00PM

1:00 PM 2:00 PM 3:00 PM 4:00 PM 5:00 PM 6:00 PM 7:00 PM 8:00 PM 9:00 PM 10:00PM

11:00PM

12:00AM

Sy

ste

m L

oa

d (

MW

)

Thursday, July 7, 2005

Tuesday, July 12, 2005

Wednesday, July 13, 2005

Thursday, July 14, 2005

Demand Response Impact on Idaho Power Firm Load

4

6

8

10

12

14

16

8:38AM

10:33AM

12:28PM

2:24PM

4:19PM

6:14PM

8:09PM

10:04PM

12:00AM

1:55AM

MW

Feeder

JNCN 43

Julion Clawson

Minidoka County