SDG&E’s - Sustainable
Communities Program
February 21, 2014 – Pete Pavao
Overview
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SDG&E
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Sustainable Communities Program Overview
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Case Studies - Solar PV Projects
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Case Studies – Solar PV/BatteryStorage Projects
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San Diego Zoo Solar to EV Project
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Civita
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Borrego
SDG&E
®Overview
San Diego Gas & Electric® (SDG&E)
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SDG&E is a regulated public utility that provides energy service to 3.4
million people through 1.4 million electric meters and 860,000 natural gas meters in San Diego and southern Orange counties. Our service area spans 4,100 square miles.
Employees
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We employ about 5,000 people who work every day to deliver the energy our customers need.
Our Parent Company
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Sempra Energy is a San Diego-based Fortune 500 energy services holding company whose subsidiaries provide electricity, natural gas and value-added products and services.
SDG&E’s Commitment to Solar
2017 Projected Renewables Portfolio*
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33% renewable energy by
2020
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Over 1,500 MW of solar PPAs
contracted today as part of
our Renewables Portfolio
Standard (RPS)
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40 SDG&E-owned solar
projects hosted by SDG&E
customers (through
Sustainable Communities
Program)
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216 MW Net Energy Metering
(NEM), over 30K customers
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Smart grid technologies
provide platform for diverse
energy supplies
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Sustainable Communities Program
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SDG&E works with
customers to integrate SDG&E clean generation systems within energy efficient and sustainably designed buildings
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Program helps customers meet their environmental goals
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SDG&E systems supplies renewable energy to the customer’s local
community
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Aids participating schools and businesses in
educating students,
employees and customers about sustainability
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Supports SDG&E’s future Smart Grid development
Reuben H. Fleet Science Center in San Diego’s Balboa Park
LEED Silver Certified Highly Energy Efficient
Sustainable Communities Program
This program, started in 2004, works with our customers to create showcase, energy efficient, sustainable projects that incorporate SDG&E-owned clean generation systems.
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Integrate photovoltaics, plug-in electric vehicle (PEV) chargers, energy
storage and energy management systems with advanced communication & control systems in support of the smart grid
Systems – photovoltaics, fuel cells & battery energy storage
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Photovoltaics – 4.2 MW
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Fuel Cell - 400 kW
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Four projects with energy storage
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224 kW/340 kWh battery
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Reduces intermittency of the PV system
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Helps SDG&E with peak shaving
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Installed, owned, maintained & operated by SDG&E
Sustainable Communities Program
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They collectively generate enough energy at peak
production to supply nearly 2800 homes.
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The energy produced prevents nearly 9 million pounds of CO2 equivalent from
entering the
atmosphere each year.
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The GHG savings from the electricity
produced is equivalent to not driving a car 11.9 million miles, or planting nearly
Steps in the SCP Process
Contract terms:
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20 year lease with options at years 10 and 15 to renew, purchase the energy system or request removal of the system
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Lease payment (if applicable) is paid annually, but the first five years are paid upfront
– Lease payment is $0.01/kWh per year, calculated up front based on nameplate of PV
– e.g. 100 kW PV – annual lease payment of $1,700
PV/Clean Energy Installation:
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SDG&E issues a RFP to approved solar vendors
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SDG&E awards the bid
3.
Solar vendor designs the PV/Clean Energy system
4.
Solar vendor obtains permits
5.
Work with construction schedule to install the system
Sustainable Communities Program
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These projects are located in communities throughout our service territory
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Projects include schools, municipal buildings, non-profits, research facilities and commercial buildings
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Most of these projects are LEED® (Leadership in Energy and Environmental
Design) certified by the US Green Building Council
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The energy is typically connected on the utility side of the meter and flows to the grid, helping us provide locally generated renewable energy to the communities where these projects are located.
Sustainable Communities Program
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The first 30 SCP projects were solar photovoltaic only
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As the utility began to focus on developing a Smart Grid, we created
opportunities to include additional technologies such as fuel cells and battery energy storage
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Our showcase project at the San Diego Zoo incorporates solar canopies, electric vehicle charging stations and battery energy storage
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Educational dashboards were included in key projects to educate and inspire building occupants
SDG&E’s Energy Innovation Center featuring solar tracking technology
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SCP Case Study – Innovative Cold Storage
Enterprises (ICE)
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PV Systems:
ICE 2 504 kW SDG&E-owned 504 kW Total 1,008 kW
• LEED Gold Certified
• Estimated Energy Savings:
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SCP Case Study – La Maestra Community
Health Center
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SDG&E-owned 20 kW photovoltaic system
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LEED Gold Certified
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SDG&E provided technical assistance and the project is designed to be to 25.4% better than Title-24
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SCP Case Study – Sony Corporation
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SDG&E-owned 56 kW photovoltaic system
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LEED Gold Certified
Energy Efficiency:
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Fitness Center and HQ – 15% better than 2005 T-24
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Parking Garage – 75% better than 2005 T-24
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SCP Case Study - Urban Corps of San Diego
County
• SDG&E-owned 16 kW photovoltaic system
• LEED Certification for New Construction
• Urban Corps links job training and education with the preservation of natural
resources for youth ages 18-25
• SDG&E’s Sustainable Experience Kiosk in lobby and signage throughout
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SCP Case Study – ARCHITECTS hanna
gabriel wells
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SDG&E-owned 16 kW photovoltaic system
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LEED Gold Certified
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Educational dashboard in lobby
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First Net Zero Office Building in San Diego!
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Energy Efficiency Incentives: 48.1% better than 2005 T-24
ARCHITECTS hanna gabriel wells
SCP Case Study - MESOM = Marine
Ecosystem Sensing, Observation and
Modeling Lab
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SDG&E-owned 61 kW PV system & energy storage system - 6 kW/10 kWh
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Targeting LEED Platinum Certification
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Educational dashboard in lobby
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Located at Scripps Institution of Oceanography at University of California, San Diego
The Suites at Paseo
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SDG&E-owned 35 kW PV system & energy storage system - 18 kW/30 kWh
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Targeting LEED Gold Certification
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Educational dashboard in lobby
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State-of-the-art student housing project near SDSU
Del Lago Academy
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SDG&E-owned 173 kW PV system & energy storage system - 100 kW/200 kWh
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Magnet high school focusing on biotechnology and medical sciences, and including environmental awareness in their curriculum
Solar-to-EV Project at the San Diego Zoo
Showcase Project in the Heart of San Diego
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A solar photovoltaics system that will harness energy from the sun to charge cars, store solar power for future use and provide renewable energy to the community
– Part of SDG&E’s Sustainable Communities Program and a Smart City San Diego Project
– Smart City San Diego is a collaboration between SDG&E, City of San Diego, University of California San Diego, General Electric and CleanTECH San Diego
Solar-to-EV Project at the San Diego Zoo
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10 solar canopies of 9 kW for a total of 90 kW
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5 Plug-In Electric Vehicle (PEV) charging stations (includes an ADA accessible charging station) (installed and owned by a third party)
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Advanced energy storage using Li-Ion batteries – 100 kW/100 kWh
• Reduce intermittency from PV
• PEV charging
• Offset peak power demands on the grid
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Educational dashboard features solar production, battery flow and electric vehicle charging sandiegozoo.org/sdgesolar
Solar-to-EV Project at the San Diego Zoo
Advanced Energy Storage Used to Smooth PV Intermittency
-‐60 -‐40 -‐20 0 20 40 60 80 100 120 140
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:1
5 P
M
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:3
0 P
M
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:4
5 P
M
1:0
0 P
M
Po
w
er
(kW
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San Diego Zoo PV + AES Project
(Intermi;ent Clouds -‐ PV Smoothing)
Ba0ery Power PV Power
Energy Storage Schematic
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KEY: # Energy Flows
1 PV to Power Converter
2 Bi-‐direcDonal Converter to Ba0ery 3 Power Converter to EV -‐ tbd 4 Bi-‐direcDonal inverter to grid
1
2
3
4
PV Array
MulN-‐Port Converter/ Inverter
AC
Ba0ery
PV Port
ES
Port ES
Port Grid EV Port Port
Grid
GRID Meter Meter DCPower Converter
Civita
• Civita is a new construction master-planned community project in San Diego by Sudberry Properties, Inc.
• SDG&E and the developer are working together to create a “smart energy
community” that can be a model for other new communities.
• The developer has designed Civita to be highly energy-efficient, with electric vehicle charging equipment and sustainability elements in both the residential and commercial sectors.
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• SDG&E will be installing distributed energy resources (DER)—such as solar PV, fuel cells and energy storage, in West Park Apartments, an apartment project currently under construction within the community. All SDG&E’s distributed energy resources will be interconnected on the utility’s side of the meter, and will not impact the customer’s energy use or bill.
• Customer will use the heat byproduct from the fuel cells to heat the pool, increasing the overall efficiency of the fuel cells.
• The apartment project is currently scheduled to be completed in Q3 2014.
Civita – West Park Apartments
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Fuel cells and battery
are planned to be
located along west
corridor west building
PV will be located on
top deck of parking
garage of Building A
Civita - Special Projects with SDG&E
Current
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Microgrid – SDG&E’s DER supporting the common area of West Park Apartments will provide support for refrigeration, HVAC, lighting, or plug load. Proposed systems include:
– 100 kW solar PV (50 kW SDG&E-owned, 50 kW customer owned)
– Six 5 kW fuel cells
– 100 kW/100 kWh energy storage
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Pecan Street Research Institute – SDG&E has partnered with Pecan St. Research
Institute to install energy monitoring devices on 50 residences at Civita. This research will provide in-depth analysis to customer energy use and test customer response to data and messaging.
Proposed
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New Construction Demand Response pilot
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Home Area Network test bed
Utilize advanced technologies to integrate and manage distributed resources within the Smart Grid
Borrego- Project Summary
Budget: $8.0M DOE and $2.8M CEC plus matching funds from SDG&E and partners Benefits: § Integrate and leverage various generaDon and storage configuraDons
§ Reduce the peak load of feeders and enhance system reliability
§ Enable customers to become more acDve parDcipants in managing their energy use
Customer Energy
Management SubstaDon
Energy Storage
Community Energy Storage Distributed Energy
Resources
Home Energy Storage Microgrid
Controller
Feeder AutomaDon System
