Irvine Ranch Water District
Battery Energy Storage Program
Association of California Water Agencies
November 30, 2016
Discussion Topics
 IRWD Background
 Energy Management at IRWD
 Battery Storage Program
 Future Energy Opportunities
2
IRWD Services
Drinking Water
5 Water Treatment Plants, 26 Wells
1,500 miles of water pipeline
Sewage Collection
1,000 miles of collection pipeline
Recycled Water
2 Recycled Water Plants
500 miles of recycled water pipeline
Urban Runoff Treatment
San Joaquin Marsh prototype plus
31 wetland treatment sites
3
IRWD Customer Base
500,000
District’s Daytime Population
390,000
Residential Customers
105,688
Service Connections
86,000
Acre Feet of Water Served
(2015)
One acre-foot = 325,851 gallons
4
Energy Management at IRWD
Steps taken:
1) Developed an Energy and
Greenhouse Gas Master Plan
2) Demand response and optimization:
‒
‒
‒
‒
Minimizing peak time of pumping
Flow equalization
High energy efficiency equipment
Embedded energy surcharges
12% of IRWD’s
Operating Budget is for
energy expenses.
3) Developed onsite generation:
‒ Diesel and natural gas engines
‒ Solar energy
Underway:
Implementing alternative energy
projects, which includes energy
storage.
5
The Opportunity for Energy Storage at IRWD
• Local resources are needed to
respond to the retirement of the
San Onofre Nuclear Generation
Station.
• Southern California Edison
(SCE) has been authorized to
procure more than 2,000
megawatts of new local
resources, a component of
which includes energy storage.
• IRWD facilities qualify as host
sites due to:
– Location
– Energy consumption
– Load profile
6
IRWD’s Energy Storage Program Highlights
• IRWD partnered with developer Advanced Microgrid
Solutions (AMS)
• 7 MW of battery storage to be installed at 11 IRWD sites
• Batteries will be charged from the grid during off-peak,
lower-cost periods and be dispatched to IRWD facilities
during on-peak, higher-cost periods
• 10-year power purchase agreement,
co-terminus with AMS/SCE contract
and Self-Generation Incentive
Program (SGIP) requirements
7
AMS - IRWD Partnership Model
The project is supported by
a 10-year power-purchase
agreement with SCE.
Host Customer
IRWD
• IRWD saves more than $500,000
per year and gains operational
efficiencies.
• AMS finances the systems with a
combination of a fixed payment
from IRWD, SCE revenues, and
SCE incentives (capital and O&M).
• SCE gains local grid stability and
reliable demand reduction.
• IRWD captures additional benefits.
Service
Fee
Energy
Savings
Own &
Operate
Battery Storage
Developer
AMS
Load
Reduction
Utility
Contract
Utility
SCE
8
How do the incentives work?
The Self-Generation Incentive Program (SGIP) provides
rebates for behind-the-meter energy storage.
Applying early was key to securing funds:
SGIP Incentive Levels for Storage
Base Incentive Amount
Program
Year
2014
2015
2016
2017
2018
2019
Non-CA
Supplier
($/W)
1.62
1.46
1.31
1.18
1.06
0.96
CA
Supplier
($/W)
1.94
1.75
1.58
1.42
1.28
1.15
• Submitting as soon as possible ensured
that IRWD received the highest value from
the incentive program; funding levels
reduced by 10% each program year.
• Project applications can precede project
implementation dates by up to two years.
• $11.5M conditionally reserved.
9
Evaluation of the Program and Potential Sites
• In 2015, AMS performed a load profile analysis on IRWD
sites to determine viability/suitability.
• IRWD hired an energy consultant to provide expert
analysis and review.
• Ultimately 11 sites were selected providing for 7MW of
battery storage.
- 5 of the 11 sites deemed suitable for 2-hour storage systems,
known as Demand Management (DM) and which provide
demand management for IRWD only.
- 6 of the 11 sites were deemed suitable for the 6-hour battery
storage systems, referred to as Demand Response Energy
Storage (DRES) and provide demand response for SCE.
10
Battery Charging and Dispatch Parameters
6-Hour Battery Storage Systems*
Maximum Dispatch:
Once per day, up to 80 hours per month
Duration of Dispatch:
Anywhere from 15 minutes to 4 hours
Dispatch Window:
Must be available from 9:00 a.m. to 6:00 p.m.
Charging Restrictions:
Batteries may not charge from the grid between 9:00 a.m.
and 6:00 p.m. (only charged at night or from non-grid
sources like renewables if available).
* The charging restriction apply to both the 2-Hour and 6-Hour Systems.
The 2-Hour Systems may be dispatched at anytime.
11
2-Hour Battery Storage Systems
DM Site Locations
Energy Storage System Size:
1,500 kW / 3,000 kWh
3
4
5
Santiago Substation
1
Coastal Zone “D” Pump Station
4975 Bonita Canyon-A, Irvine
2
Coastal Zone “4” Pump Station 4975
Bonita Canyon-B, Irvine
3
Foothill Zone “6” Pump Station 21515
Magazine Rd., Irvine
4
Portola “3-5” & “A-C” Pump Station
4951-1/2 Portola, Irvine
5
East Irvine Zone “1-3” Pump Station
13826 Sand Canyon Ave., Irvine
Johanna Substation
1
2
6-Hour Battery Storage Systems
DRES Site Locations
Energy Storage System Size:
5,500 kW / 31,200 kWh
5
2
Michelson Water Recycling Plant
3512 Michelson Dr., Irvine
2
Deep Aquifer Treatment System
1704 W. Segerstrom, Santa Ana
3
Los Aliso Water Recycling Plant
22312 Muirlands, Lake Forest
4
Potable Treatment Plant
26 Waterworks Way, Irvine
5
Tustin Desalter Plant
1221 Edinger Ave., Tustin
6
Dyer Road Well 10
3302 W. Warner, Santa Ana
3
4
6
1
Johanna Substation
Santiago
Substation
1
Expanding IRWD’s Renewable Energy Portfolio
• Constructing a $200M resource recovery facility for biosolids
• Biomethane will ultimately generate 1.6 MW of renewable energy
• Help meet the state’s landfill diversion requirement
14
Expanding IRWD’s Renewable Energy Portfolio
• Food waste will be converted to engineered bioslurry
• Bioslurry will be added to anaerobic digesters to augment renewable
energy generation capability
15
Paul A. Cook, P.E.
General Manager
[email protected]
(949) 453-5590
www.irwd.com
Irvine Ranch Water District
@IRWDnews
IrvineRanchWD
16