With the SRP Time-of-Use™ (TOU) Price Plan, you can save money on your electric bill by using less electricity weekdays from 2–8 p.m. between May and October.
Between November and April, higher cost on-peak hours are weekdays from 5–9 a.m. and 5–9 p.m.
You'll pay lower off-peak prices all other hours, including weekends and six observed holidays.*
Isn't PHF = Peak volume in the 15min. Interval / 4. Peak Hour Volume 15 min. And this is after choosing the critical hour given a two hour count? I'm just confused if there's a factor for the non straight through turns and trucks. Peak fares - Monday to Friday (not on public holidays) between 06:30 and 09:30, and between 16:00 and 19:00; Off-peak fares - at all other times and if you travel from a station outside Zone 1 to a station in Zone 1 between 16:00 and 19:00, Monday to Friday.
* New Year's Day (observed) , Memorial Day, Independence Day (observed), Labor Day, Thanksgiving Day and Christmas Day (observed). Martin Luther King Jr. Day will also be off-peak beginning in Jan. 2021.
Customers that save on TOU see an average annual savings of nearly 5% on their electric bills. Get tips for how you can save.
TOU could be the right price plan for you if:
- You can use less energy during six to eight higher-cost weekday hours.
- You can be flexible about when you use major home appliances, such as the air conditioner and clothes dryer.
- Your home size is average to large.
- You have a pool.
You can also sign up by calling (602) 236-8888 24 hours a day, seven days a week.
TOU plan prices
Energy is priced per kilowatt-hour (kWh) and your monthly energy charge is based on the total amount of energy used during your billing cycle. The amount used in your home is constantly monitored and recorded by the meter. For example, if you use a 1 kW appliance for three hours, you use 3 kWh of electricity.
Winter
November through April
(Prices per kWh)
- 11
- 10
- 9
- 8
- 7
- 6
- 5
- 4
- 3
- 2
- 1
- 12NOON
- 11
- 10
- 9
- 8
- 7
- 6
- 5
- 4
- 3
- 2
- 1
- 12MIDNIGHT
- 12¢
- 9¢
- 6¢
- 3¢
- 0
Summer
May, June, September, October
(Prices per kWh)
- 11
- 10
- 9
- 8
- 7
- 6
- 5
- 4
- 3
- 2
- 1
- 12NOON
- 11
- 10
- 9
- 8
- 7
- 6
- 5
- 4
- 3
- 2
- 1
- 12MIDNIGHT
- 21¢
- 18¢
- 15¢
- 12¢
- 9¢
- 6¢
- 3¢
- 0
- 11
- 10
- 9
- 8
- 7
- 6
- 5
- 4
- 3
- 2
- 1
- 12NOON
- 11
- 10
- 9
- 8
- 7
- 6
- 5
- 4
- 3
- 2
- 1
- 12MIDNIGHT
- 24¢
- 21¢
- 18¢
- 15¢
- 12¢
- 9¢
- 6¢
- 3¢
- 0
* Higher on-peak prices are in effect Monday through Friday only during the hours shown. Lower off-peak prices are in effect all other weekday hours, weekends and six observed holidays: New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day. Martin Luther King Jr. Day will also be off-peak beginning in Jan. 2021.
Why are energy prices higher in the summer?
![Peak Peak](https://bilder.macwelt.de/3581385_620x310_r.jpg)
The kWh or unit cost of energy is different in winter and summer regardless of your price plan. The price you pay rises and falls with the demand for electricity. During the coolest months, customer usage, generation costs and the price you pay are lowest. During the hottest months, customer usage skyrockets and generation costs to meet peak demand are highest.
Ways to save money
To save money, you must use less electricity during higher-cost, on-peak hours Monday through Friday.
- Reduce on-peak energy usage
Understand how devices in your home contribute to higher cost usage and find out what actions you can take to save money. The average TOU customer uses about 25% on-peak, higher-cost energy. - Discover more ways to save
Check out other TOU money-saving tips.
For more information about the TOU Price Plan, view the complete TOU Plan sheet .
Peak Hour Volume, Design Flow Rate, PHF
The following excerpts were taken from the 1994 Highway Capacity Manual, published by the Transportation Research Board.
Peak Hour and Design Hour Smooze 1 7 1 0.
Capacity and other traffic analyses focus on the peak hour of traffic volume, because it represents the most critical period for operations and has the highest capacity requirements. The peak hour volume, however, is not a constant value from day to day or from season to season.
If the highest hourly volumes for a given location were listed in descending order, a large variation in the data would be observed, depending on the type of route and facility under study.
Rural and recreational routes often show a wide variation in peak-hour volumes. Several extremely high volumes occur on a few selected weekends or other peak periods, and traffic during the rest of the year is at much lower volumes, even during the peak hour. This occurs because the traffic stream consists of few daily or frequent users; the major component of traffic is generated by seasonal recreational activities and special events.
Urban routes, on the other hand, show little variation in peak-hour. . . .
The relationship between the 15-min flow rate and the full hourly volume is given by the peak hour factor, defined in Part A of this chapter (see below).
Whether the design hour was measured, established from the analysis of peaking patterns, or based on modeled demand, the peak-hour factor (PHF) is applied to determine design hour flow rates.
Peak-hour factors in urban areas generally range between 0.80 and 0.98. Lower values signify greater variability of flow within the subject hour, and higher values signify little flow variation. Peak-hour factors over 0.95 are often indicative of high traffic volumes, sometimes with capacity constraints on flow during the peak hour.
(Description of PHF from Part A, as referred to above.)
Peak rates of flow are related to hourly volumes through the use of the peak-hour factor. This factor is defined as the ratio of total hourly volume to the peak rate of flow within the hour:
PHF = Hourly volume/Peak rate of flow (within the hour)
If 15-min periods are used, the PHF may be computed as
PHF = V/(4 x V15)
Where
PHF = peak-hour factor,
V = hourly volume (vph), and
Sqlpro studio 1 0 416. V15 = volume during the peak 15 min of the peak hour (veh/15 min).
PHF = peak-hour factor,
V = hourly volume (vph), and
Sqlpro studio 1 0 416. V15 = volume during the peak 15 min of the peak hour (veh/15 min).
Peak Hour 4 1 9 0 1
Where the peak-hour factor is known, it may be used to convert a peak-hour volume to a peak rate of flow, as follows:
v = V/PHF (2-3) Liquid 15 – integrated shortcuts for common daily tasks crossword.
Where
v = rate of flow for a peak 15-min period (vph),
V = peak-hour volume (vph), and
PHF = peak-hour factor.
v = rate of flow for a peak 15-min period (vph),
V = peak-hour volume (vph), and
PHF = peak-hour factor.
Equation 2-3 need not be used to estimate peak flow rates where traffic counts are available. The chosen count interval must allow the identification of the maximum 15-min flow period. The rate may then be directly computed as 4 times the maximum 15-min count.
Peak Hour 4 1 9 000
Many of the procedures use this conversion to allow computations to focus on the peak flow period within the peak hour.