timberrock case study (3-15-14) copy.pages
TRANSCRIPT
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Case Study !!Solar Microgrid Integrates Solar PV, Energy
Storage, Smart Grid Functionality and Advanced Vehicle-to-Grid Capabilities
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Project awarded Maryland Energy Administration’s prestigious Game Changer
award!! !!!!
WWW.TIMBERROCKES.COM4539 METROPOLITAN CT.!
FREDERICK, MD 21704TIMBERROCK CASE STUDY
!!Overview! 3!
OnStar Integration! 4!
Project Elements! 5!
Performance! 5!
System Pictures! 6!
System Schematic! 7!
Web Based Dashboard! 8!
WWW.TIMBERROCKES.COM4539 METROPOLITAN CT.!
FREDERICK, MD 21704TIMBERROCK CASE STUDY
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Overview!General Motors, OnStar and TimberRock Energy Solutions have collaborated to deploy an
advanced, solar microgrid at GM’s E-Motor Plant in White Marsh, Maryland. The objective of the
project was to quantify how a microgrid comprised of distributed energy resources (DERs) that
include solar PV, EV charging infrastructure, stationary li-ion energy storage and a fleet of Chevy
Volts could deliver an economic “benefit stack” sufficient to enable scalable, microgrid business
models.
!The project tightly integrates the performance of the various DERs within the microgrid via
TimberRock’s Distributed Energy Resources Management System (DERMS) called De-MAP. De-
MAP serves as the integration platform for both the DERs and external market management
systems. The DERs are aggregated and managed as a single block of capacity allowing them to
“straddle the meter” and be dispatched to deliver value to both the host site – delivering cost-
effective energy and reducing demand charges – and the grid by providing services like frequency
regulation.
!The project represents the first commercial deployment of OnStar’s Smart Grid solutions which
allows EVs to be integrated with a microgrid and directly managed as grid-interactive resources.
PJM, the grid operator, was heavily involved with the project since its inception and the Maryland
Energy Administration has awarded the project their prestigious Game Changer award.
WWW.TIMBERROCKES.COM4539 METROPOLITAN CT.!
FREDERICK, MD 21704TIMBERROCK CASE STUDY
OnStar Integration !OnStar’s ubiquitous network and vehicle connectivity was leveraged to provide advanced vehicle-
to-grid integration with the solar-based microgrid. Whether physically on site or not, the EVs’ load
can be reduced in
response to a demand
response request or
pricing signal. Most
uniquely, the charging of
the Volt can be
modulated across its
charging range in direct
response to a frequency
regulation signal. In
aggregate, this allows the
fleet to support grid
balancing – tapping into
the revenue stream it
provides - while never
discharging energy from the
vehicle to the grid.
WWW.TIMBERROCKES.COM4539 METROPOLITAN CT.!
FREDERICK, MD 21704TIMBERROCK CASE STUDY
Infographic depicting the Microgrid currently deployed at GM’s E-Motor Plant- OnStar and TimberRock connect to manage GM’s solar PV and
energy storage as well as a fleet of Chevy Volts.
“GM is positioning EVs as a means of helping balance grid capacity… GM’s partner for pulling this off is TimberRock” - Forbes Oct ‘13
Project Elements !• 600kW of combined solar PV (roof-mount and islanding-capable canopy mount)
• Sub-set of the solar PV integrated with multiple advanced bi-directional inverters with microgrid
(islanding) capability
• Custom parking lot canopy with integrated energy storage and inverter cabinets
• Transactive Energy Router - Embedded control hardware, telecommunications and software
required for optimization, aggregation, and dispatch
• DERMS provided by cloud-based De-MAP
• Stationary li-ion storage with integrated thermal management
• EV charging stations providing free charging for employees, guests and suppliers
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Performance !• Generation of renewable electricity for EV charging and use by the E-Motor plant
• Solar firming & peak shifting
• Demand charge reduction
• Frequency regulation via stationary and mobile distributed energy resources
• Spinning reserve
• Dynamic load shedding during periods of high grid congestion as signaled by real-time LMP
data
• EV fleet management
WWW.TIMBERROCKES.COM4539 METROPOLITAN CT.!
FREDERICK, MD 21704TIMBERROCK CASE STUDY
System Pictures
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WWW.TIMBERROCKES.COM4539 METROPOLITAN CT.!
FREDERICK, MD 21704TIMBERROCK CASE STUDY
Solar PV charges the stationary batteries, plugged in EVs and back-feeds the E-Motor Plant
Li-ion energy storage
Bi-directional inverters full integrated into structural columns of solar PV canopy
System Schematic
WWW.TIMBERROCKES.COM4539 METROPOLITAN CT.!
FREDERICK, MD 21704TIMBERROCK CASE STUDY
Six EV chargers provide power to a fleet of Chevy Volts. De-MAP software communicates directly with the EV via OnStar, eliminating the need for intelligent and costly plugs/chargers
Roof Mount Solar
Sustainable Microgrid
E-Motor Plant
Energy & Capacity Payments
Long-Term Energy Supply Agreement
Distributed Energy Management & Aggregation Platform (De-MAP)
Islanding-CapableSolar PV
Li-ion Storage
Distribution Utility
6-Vehicle EV Fleet Charging Infrastructure
UtilityMeter
Customer Meter
Electricity
Solar Microgrid
Renewables - Storage - Smart Grid - Vehicle-to-Grid
Utility Support
- Load Shedding- Congestion Relief
Local Optimization
Local generation and/or pass through; utility used
to balance
Ancillary Services
- Frequency Regulation-Spinning Reserve
Ancillary Services Revenues
www.TimberRockES.com Jan 12th, 2012GM White Marsh II
design review
5
Charging Modulated To Support Grid Balancing
Microgrid
Transactive Energy Router
Web Based Dashboard
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For more information, contact:!!Contact: [email protected]
WWW.TIMBERROCKES.COM4539 METROPOLITAN CT.!
FREDERICK, MD 21704TIMBERROCK CASE STUDY
Screen capture of De-MAP EV fleet management application
Screen capture of De-MAP web-based system dashboard. Shows complex data and energy flows that allow Transactive Energy