1. Utility Scale Energy Storage and Microgrid Solutions
6th U.S.-China Climate Change Working Group Smart Grids Workshop
JJ Dai, Director of Renewable Energy Applications APAC, Eaton Corporation
November 2, 2016, Shenzhen, China
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2. Backup power protection
Control and automation
Structural solutions and wiring devices
Engineering services
Lighting and security
Power distribution
and circuit protection
Eaton: One brand with solutions for the entire power system and expertise spanning seven core competencies
Solutions for harsh and hazardous environments
Residential
Data centers
Industrial
Utility
Commercial
Machine building
At Eaton, we have the expertise and technology to provide electrical power management solutions across a broad range of market segments through our seven core competencies:
Power distribution and circuit protection
Structural solutions and wiring devices
Backup power protection
Solutions for harsh and hazardous environments
Lighting and security
Control and automation
Engineering services
Image: Created by Jack Morton for ES. Used with permission.

3. Power XpertTM Solar/Storage Utility-Scale Inverter
Typical Energy Storage System for
Utility-scale installations

4. Eaton Utility scale 5 MW battery storage - Oregon General Electric
EXISTING Distributed Generation
6 total generators totaling 5.7 MW

5. Utility battery storage system components
Batteries
1 MW / 1.25 MWh EnerDel Lithium-Ion battery blocks and battery management system (x 5 for total of 5 MW)
Inverters
20 Eaton PowerXpert 250 kW inverters, adapted for battery storage application
Associated AC Power System
Low-Voltage switchboards
Step-up transformers
Medium-voltage switchgear, metering, protection
UPS (for control)
Storage Master Control System
Integration services to coordinate and regulate operation of multiple inverters and battery banks and interface with utility control system
One of the first Li ion projects of this size, active since 2012

6. Utilizing both new and second life EV Batteries
Energy storage solution for Buildings - Existing customer installation example
As mentioned earlier, Eaton is partnering with Nissan as a core supplier of lithium ion technology for the battery storage. Nissan is not just an expert in making Li-ion batteries, but like Eaton is a stable company that can support the products over the long term. For example, with Nissan, recycling Li-Ion at the end of life is built into the offer. Eaton + Nissan together provide customers certainty that the solutions will be supported not just today, but over the life of the product. This is important as Li-Ion batteries are expected to perform for 10 years In typical use cases.
Here we see a model of the first product Eaton and Nissan have built together. The 93PM is a modified UPS that allows power up to 200KW. In this case, to the left of the UPS, we show a Nissan battery pack directly out of a vehicle. As we speak, we are developing in addition modular battery racks of both used and new Li-Ion batteries to increase the flexibility of what can be offered.
In COP-21 in Paris, Eaton supplied a real system at the Nissan Pavilion that was fully running key circuits for the building from 10am to 3pm each day. This was a simple demonstration of how such a control system can run. For more on this product, please see the people and videos.
Utilizing both new and second life EV Batteries

7. Energy Storage System for Commercial / Buildings – Some technical details
Storage Capacity
From 12 kWh to MWhs using strings of battery packs
Battery pack capacity based on battery modules:
4,2 kWh - Second life batteries
6 kWh - New batteries
7,5 – 9,6 kWh – New batteries available 2017
Output
230/400V, 3~ + N
Power
From 10kW to several MW
Installation
Fits in 19 inch standard racks (EIA-310-E)
Up to 10 battery packs per 42U rack
Operating temperature
5°C – 40°C
Battery life
~10 years - Estimate based on 1 daily full cycle usage
Efficiency
Online (on utility grid): >96%
Battery mode: >95%
UPS features
Up to 97% efficiency in double conversion
>99% efficiency with Energy Saver System
Compact footprint
Battery packs in rack plus Inverter platform

8. Energy Storage Systems can help
New ways to offset energy costs to rate payers
Revenue opportunities such as demand management
Uninterrupted, high quality power
Protection of critical loads
Integration of renewables into the energy supply
Flexibility to adapt to an ever-changing environment

9. Energy storage delivers tangible benefits across the energy chain
Centralized / Distributed Generation
Utility T&D
Large Commercial / industrial
Generate additional revenue
+++ ++
Cost savings
on electricity and operational expenses +
Optimize use of renewable energy
Defer utility system investment
Maintain resiliency
Save money on electricity and operational expenses
Peak shaving
Self-consumption of PV
Load shifting / demand management
Protect against power quality fluctuations/outages
Regulatory compliance
Optimize use of renewable energy
Minimize curtailment at the grid level
Maximize consumption of onsite generation
Defer utility system investment
Optimize existing generation assets
Fast peaking power capability
Use of black start for additional capacity
Maintain resiliency
Backup power supply in case of natural disaster
Enable black start of diesel gen sets
Protect sensitive equipment from damage
Generate additional revenue
24/7 peak capacity alternative
Enable demand response programs
Frequency regulation services (grid stability during peak demand hours)

10. The Microgrid Energy System Concept
Local “Grid Within a Grid”
Delivers Power Resilience, Reliability and Uptime
Distributed Energy Sources
Backup Generation
In-House Co-Gen
CHP (Combined Heat and Power)
On-Site Renewables and Fuel Cells
Energy Storage (Batteries)
Microgrid Applications
Islanding & Synchronization
Black Start
Generation/Load Balance Control
Battery Energy Storage & Frequency Regulation
Wind
Utility
Back-up Generation
Facility Loads
Battery
(Critical Loads)
Solar
In-House Co-Gen
Imagery ©2015 Google, Map data ©2015 Google
A group of generating assets and defined loads that can operate within the utility grid or islanded from the grid, as a self-sufficient stand alone application
Requires Control System “Glue” to Achieve System Performance

11. Eaton Menomonee Falls’ Microgrid

12. Eaton Microgrid for a hospital

13. Eaton’s Microgrid Energy Management System
Lowest cost
Renewable optimization
System balance
Frequency and voltage control
Black start
Seamless islanding
System Design
To SCADA/Customer
System Controller
Local Controller
Generators
Energy Storage
Photovoltaics
Buildings
HVAC
HMI & Data Historian
PCC
Legacy Communication Protocols
IEC Communication Protocols
Proprietary Communication Protocols
Metasys®
Breaker
Relay
Meter
To Substation
The microgrid control provides operator interface and control, including access to alarms, history, and trending
Reporting functions verify the system configuration, optimization, and other key characteristics
Graphical system representation provides operators a window into the microgrid status and configuration. The interface provides a secure method of changing system parameters ranging from asset costs and optimization targets, to controlling individual assets.

14. Guangdong Nansha Microgrid System
This is a Microgrid demo system, collaborated by China Southern Power Grid (Guangzhou Power Supply Co. Ltd.) and Eaton Corporation.
The system will be able to operate solely depending on renewable energy to achieve zero CO2 emission; to seamlessly connect and disconnect with the power grid; to sustainably handle power outages during extreme environment conditions.
The learned experience and module system design and construction will be applied to commercial Microgrid solutions within China Southern Grid and entire China.
1MWh Storage
Ship-Shore Power Supply
Control Center
100kW Wind
200kW Solar
200kW Solar
EV Charger
Ice Storage AC
100kW Wind
Ground-source Heat Pump

15. Nansha Microgrid System Conceptual Design