TIME OF USE RATES
EDUCATION & OUTREACH FOR AGRICULTURAL & PUMPING CUSTOMERS
SCAP ENERGY MANAGEMENT COMMITTEE MEETING
AUGUST 12, 2013
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BASICS: Time-of-Use Statewide Initiative
WHO?
Non-residential customers
WHAT?
Time-of-Use rates are determined by
when you use energy (time of day, day of
week, season) and how much you use.
WHY?
Time-of-Use is part of a statewide
initiative designed to keep the grid
reliable so everyone will have power
when they need it.
WHEN?
GS-1 and GS-2 customers* will transition to
TOU Jan. 2014
PA-1 and PA-2 customers* will transition to
TOU Feb. 2014
*with 12 months of interval data as of July 31, 2013
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Rate
Analysis
November 2013
Outbound
Call
Late October 2013
@
Rate
Analysis
Early October 2013
TOU
Awareness
September 2013
August 2013
OUTREACH: TOU Customer Communication
Outbound
Call
SCE.com/TOU, My Account, Rate Analyzer, and solutions that
will help customers with the TOU transition
120+ Events, including energy walks, chamber meetings, business
forums and presentations
Targeted banner ads, paid search, social media and other vehicles
Digital Campaign
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OUTREACH: SCE.com/TOU
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SEASONAL: Traditional Time Periods
Traditional Summer Time Periods
Highest Energy Charge
Medium Energy Charge
Lowest Energy Charge
Three different TOU periods:
On-Peak: Highest Energy Charge
Mid-Peak: Medium Energy Charge
Off-Peak: Lowest Energy Charge
Traditional Winter Time Periods
Medium Energy Charge
Lowest Energy Charge
Holidays:
Holidays are considered Off-Peak or Super OffPeak. When any holiday falls on a Sunday, the
following Monday is recognized as the holiday
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TIME PROFILE: Standard TOU Rate
% Time / Number of Hours
Average per Month
Summer
Winter
130 hours
18%
404 hours
55%
On-Peak
196 hours
27%
Mid-Peak
Off-Peak
447 hours
61%
Mid Peak
282 hours
39%
Off Peak
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RATE COMPONETS: Demand (kW) / Energy (kWh)
Power (kW or Demand) is a
Car Example
measure of how quickly work is
being done.
The speedometer measures the rate at
which work is being done - your Speed is
like Kw
1kW = 1.341 Horsepower
Energy (kWh) is a measure of
how much work was done
1 kWh = Ten 100 watt light bulbs
running for 1 hour
The odometer measures how much work
was done - Miles driven is like kWh
Watts is a unit of power
kW = 1000 Watts (kilo is 1000 times)
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DEMAND EXAMPLE
• Measured Demand is
an average demand
over a 15 minute
interval
15 minute Demand Interval
additional
21kW
comes on
9kW
shuts
off
9kW
0 – 5 minutes: 9 kW x 1/3 of time = 3 kW avg.
5 – 10 minutes: 30 kW x 1/3 of time = 10 kW avg.
10 – 15 minutes: 21 kW x 1/3 of time = 7 kW avg.
Total = 20 kW avg.
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Typical Rate Schedules (Comm/Ind.)
• TOU-8-B (Options A and B)
– Maximum Demand Greater than 500kW
– Facilities-Related & Time-Related Demand Charge
– Energy Charge (based on Peak Period)
• TOU-GS-3 (Options A and B)
– Maximum Demand Between 300kW and 499kW
• TOU-GS-2 (Options A and B)
– Maximum Demand Between 20kW and 299kW)
• TOU-GS-1 (Options A and B)
– Maximum Demand Between 0kW and 19kW)
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Typical Rate Schedules (Ag/Pumping)
• TOU-PA-3 (Options A and B)
– Maximum Demands Between 300kW and 499kW)
• TOU-PA-2 (Options A and B)
– Maximum Demands Beetween 20kW and 299kW)
• TOU-PA-1 (Options A and B)
– Maximum Demands Between 0kW and 19kW)
• TOU-PA-2-RTP & TOU-PA-3 (Real Time Pricing)
– Temperature-based rate, hourly pricing
– Based on temperature recorded at LA Civic Center
• TOU-PA-SOP (Super-Off Peak)
– Beneficial to Customers Who Confine Majority of Usage to SOP Period
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Agricultural and Pumping Time of Use Periods
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Agricultural and Pumping Time of Use Periods
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How Time-Of-Use Rates Work
With Time-of-Use rates, the cost of electricity changes
depending on the time of day you use it. Instead of a single flat
rate for electricity use, the cost of electricity on a Time-of-Use
rate varies based on the time of day, day of week, and season in
which it is used. With Time-of-Use rates, when you use
electricity is just as important as how much you use.
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SM
Standby and Departing Load
(SB&DL)
Response to Questions for Roundtable Discussion on Electricity Rates
SCAP Energy Management Committee Meeting
August 12, 2014
Project Management Technical Services
B. Emerson, Sr. Project Manager
DRAFT
Business Customer Division
SOUTHERN CALIFORNIA EDISON®
SM
Departing load charges and when are they applicable or not.
• Departing Load (DL) tariffs apply to self-generation customer load that
departed from SCE on or after 12/20/1995, with several exceptions.
1. DL tariffs pay for costs of Public Energy Policies.
2. Schedule DL-NBC (Departing Load NonBypassable) applies to load that departed on
or after 12/20/1995.
• Rate components: Nuclear Decommissioning Charge (NDC), Public Purpose Programs Charge
(PPPC), and Competition Transition Charge (CTC).
3. Schedule CGDL-CRS (Customer Generation Departing Load – Cost Responsibility
Surcharge) applies to load that departed after 02/01/2001, in addition to DL-NBC.
• Rate components: Department of Water Resources (DWR) Bond Charge, Competition
Transition Charge (CTC), and Power Charge Indifference Adjustment (PCIA).
• Exemptions from Departing Load1:
1.
2.
3.
4.
“Net Energy Metering Eligible” generators – e.g. Solar and Wind or Fuel Cells ≤ 1 MW
Co-Generators1 are exempt from the CTC rate component, (PUC 372 and/or 374)
CSI and SGIP Eligible1 generators are exempt from CGDL-CRS for the first 1 MW only
Generators1 that meet BACT standards set by AQMD and/or CARB are exempt from
PCIA rate component
• DL is determined based on either the actual kWh output of the
generator or a calculated estimate.
1. Calculated DL = Mo. Avg. kWh
(over 12 months prior to Gen Ops)
– less Current Month’s kWh
Note 1: After State-wide Cap has been reached, CRS charges apply.
Business Customer Division
Project Management Technical Services
SOUTHERN CALIFORNIA EDISON®
Slide: 15
SM
Standby charges and when are they applicable or not
• Standby (SB), Schedule S, is required for all customers who selfgenerate all or part of their site load, with a few exceptions.
• Permanent Exemptions for both SB & DL:
1. “Net Energy Metering Eligible” generators – e.g. Solar and Wind or Fuel Cells ≤ 1 MW
2. Backup/Emergency generators – operates only when there is a utility outage
• Standby contract has two (2) demand level selections:
1.
Supplemental Contract Capacity (SCC) kW = the Site Load that SCE will
serve when the generator is normally operating or normally not scheduled
to operate, e.g. night time.
•
2.
SCC kW is used in splitting the Summer On-Peak kW and Mid-Peak KW between
Supplemental and Back-up Time Relate Demand for customers that do
not have a SCE generator output meter
Standby Demand (SB) kW = the load that the generator regularly serves
and SCE is expected to instantaneously provide when the generator goes
down, excluding any SCC .
•
•
SB can not be more than the Generator Size nor Site Load; it excludes any SCC
SB kW is used in offsetting the maximum demand in determining excess FRD
Business Customer Division
Project Management Technical Services
SOUTHERN CALIFORNIA EDISON®
Slide: 16
SM
Do these charges vary and have limitations?
– Do these charges vary based on the type of rate structure the
facility is currently on?
• Yes, similar to TOU, it is based on the site’s
– Maximum Demand level (≤20, 21-199, 200-500, >500 kW), and
– Service Voltage (<2, 2-50, 51-219, >220 KV).
– The higher these values, the rates tend to be lower.
• SB’s Capacity Reservation Charge is a monthly fixed amount based on
the SB kW and charged regardless of monthly maximum demand
– Are facilities with on-site generation in any way limited in their rate
structure options?
• Yes, they are limited to only Option B, (and TOU-S-RTP); i.e. no Option
A, R or CPP
• And they are also limited to TOU-BIP in the Demand Response
programs.
Business Customer Division
Project Management Technical Services
SOUTHERN CALIFORNIA EDISON®
Slide: 17
SOLUTIONS: No-cost, Low-cost

NO-COST TEMPORARY REDUCTION TIP
CHECKLIST

PERMANENT REDUCTION TIPS
Where possible, shift operations to
maximize lower cost time periods
Use Variable Speed Drives (VSDs)
instead of a valve to control flow
Stagger equipment use to minimize
demand
Low Pressure Sprinkler Nozzles
When you do not need all your pumps
operating, use lower cost pumps first
Controls for fans
Plan your irrigation sets to maximize
weekends and lower cost time periods.
For seasonal operations, know the
start of your billing period
Make sure time clocks are set properly
VSDs on Dairy Vacuum and Milk Pumps
Install time clocks, sensors, to avoid
higher cost periods
Visit sce.com/EnergyTips for more
customized tips and information by
business type.
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SOLUTIONS: Tools & Programs
Tools
• My Account
• Budget Assistant
• Business Energy
Advisor
• Rate Analyzer
coming soon
Express
Incentives
• Pumps Retrofits
(25HP and less)
• Sprinkler to Drip
• Low Pressure
Sprinkler nozzles
• Various lighting
solutions
Customized
Incentives
Demand
Response
• Pump Retrofits
• Variable Speed
Drives:
• Well Pumps
• Vacuum Pumps
• Milk Pumps
• Fan Controls
• Aeration/Controls
• Agricultural and
Pumping
Interruptible (API)
• Automated
Demand Response
• Aggregator
Managed Portfolio
(AMP)
For more information about programs,
incentives, and savings visit
www.sce.com/solutions
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Actual eligibility and incentives will be determined on a case-by-case basis, per individual program guidelines
SOLUTIONS: SCE Pump Test
• SCE’s oldest Energy Efficiency Program
– Since 1911
• Tests are NO COST
• Reasons to Test
–
–
–
–
Track Pump Performance
Budgeting
Operational Planning
Identify Inefficient pumps
• To make arrangements for pump testing
– Call (800) 634-9175
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Contact Us
Energy
Efficiency &
Demand
Response
Programs
Optional
Rates
Detailed Rate
Analysis
Economic
Development
Services
Other
Products and
Services
Contact your account manager or:
• www.sce.com/TOU
• TouSolutions@sce.com
• 1-866-743-1645
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Questions???
•
•
•
•
James I Pasmore, Jr
James.pasmore@sce.com
Office: (714) 973-5759
Mobile: (714) 227-3283
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APPENDIX
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SOLUTIONS: Pump Test
• PUMP TEST RESULTS LETTER INCLUDES:
– Overall Plant Efficiency
– If applicable
• Estimate Savings if pump is
retrofitted
• Estimated Incentive
–
–
–
–
Discharge Pressure
Standing water level
Pumping water level
Discharge Head
–
–
–
–
–
–
–
–
–
Total Head
Drawdown
GPM
GPM per Foot Drawdown
Acre Feet Pumped in 24 hours
kW Input to Motor
HP Input to Motor
% Motor Load
RPM
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TOU: HOLIDAYS
• Holidays are considered Off-Peak or Super Off-Peak
–
–
–
–
–
–
–
–
New Year’s Day
Presidents Day
Memorial Day
Independence Day
Labor Day
Veterans Day
Thanksgiving Day
Christmas
• When any holiday falls on a Sunday, the following Monday is
recognized as the holiday
– Note: no change will be made for holidays falling on a Saturday
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