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GE Proprietary
Achieving the Art of the Possible
Eliot Assimakopoulos Microgrid Commercial Leader GE Digital Energy [email protected] May 2012
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GE Proprietary
Achieving the Art of the Possible
Alignment of multiple visions under a unified framework • Leveraging convergence of energy security &
environmentalism Trickle-down Empowerment • A sustainable energy platform can enable much
more than is apparent (e.g. low-cost, cleaner power) • Human Sustainability
• Empowerment of manufacturing & economic development
• Healthcare
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GE Proprietary
Example: Human Sustainability for Isolated Grids Northern Canada
Solution will provide: • Sustainable Energy Microgrid
•Increase renewables / decrease COE •Decrease fossil generation / emissions
• Sustainable Water •Cleaner & efficient potable / process water •Intelligently managed as an energy resource
• Sustainable Healthcare •Remote medical clinic solution
• Digital imaging & diagnostics • Digitally connected to major medical
centers – triage, virtual healthcare
Providing holistic sustainability solutions on an optimized energy foundation
Sustainable Energy
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GE Proprietary
Bella Coola Ah Sin Heek Diesel /
Energy Storage Site
Microgrid
Controller
Ethernet Switch
Modem
Wireless
Radio
Clayton Falls:
2.12 MW Hydro
Bella Coola 2.1/1.5MW
6.2 MW Diesel
Hagensborg 2.6/1.7 MW
25 kV Distribution
Local HMI
Diesel Genset
Interface
Hydro Generator
Interface
Remote Monitoring
Storage
Fuel Cell 125 kW
3.3 MW-hr
Electrolyzer 300 kW
Utility Service Vehicle
Battery Support 125 kW / 400 kW-hr
Off-grid community 439 km N of Vancouver
• Ran on Diesel Gensets and Hydro generators at Clayton falls
• Load profile: 4.7/3.2MW, mostly residential • 2 Hydro generators: 2.12MW • 8 Diesel Gen-sets: 6.2MW • Biggest challenge – Reduction of GHG
emissions & cost of diesel transportation
Case Study: Bella Coola Site Details
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GE Proprietary
A Holistic View on Energy as a System is a Must Incrementalism is the long slow road
•Effective integration of non-conventional energy resources requires long-term system planning
•Variable generation will make the system more complex and dynamic
•Utilities prefer to make data-driven decisions
Fre
qu
en
cy
(H
z)
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GE Proprietary
Example: Hawaii; High Penetration Renewables Issues
System Impact
Energy (MWh)
2007 ~ 14%
• Uncontrolled ramp-down impacting system frequency
• Potential for triggering under-
frequency load shedding
• Wear and tear on thermal assets
• HELCO missing heatrate targets due to spinning reserve ($5M penalty from
PUC)
Grid Frequency
Apollo
HRD0
21
MW
59.8
60Hz
~1.5hr
Hawi
10.5MW
V47 660kW
South Point20.5MW
GE 1.5MW
Lalamilo1.5MW
Jacobs 20kW
In 2007…
22.1 MW
20.6 MW
42 MW
In 2018…
Power (MW)• Day ~ 40%• Night ~ 70%
220
110MW
24hr
MW
24hr
85
Power (MW)• Day ~ 15%• Night ~ 30%
180
100
MW
24hr
30
180
100
MW
24hr
30
84.5MW of wind power capacity32.5MW of wind power capacity
IPP
IPP
HELCO
MW
24hr
85
Power (MW)• Day ~ 15%• Night ~ 30%
180
100
MW
24hr
30
180
100
MW
24hr
30
84.5MW of wind power capacity32.5MW of wind power capacity
IPP
IPP
HELCO
Power (MW)• Day ~ 15%• Night ~ 30%
180
100
MW
24hr
30
180
100
MW
24hr
30
84.5MW of wind power capacity32.5MW of wind power capacity
180
100
MW
24hr
30
180
100
MW
24hr
30
180
100
MW
24hr
30
180
100
MW
24hr
30
84.5MW of wind power capacity32.5MW of wind power capacity
IPP
IPP
HELCO
Load
Wind
Load
Wind
Constrained Systems More Susceptible to Penetration Issues
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GE Proprietary 7
Power Systems Modeling for Island Grids Eliminating Uncertainty for Utility Planners
1 day 1 min 1 hr 1 wk 10 min 1 sec
Positive Sequence Load Flow (GE PSLFTM)
GE Interhour Screening ToolTM
Long-term Dynamic Simulations (GE PSLFTM)
Multi-Area Production Simulation (GE MAPSTM)
These four tools can be used together to quantify the impacts of wind power on the power system
Voltage Support
Inertia Governor Response AGC
Regulation Economic Dispatch
Planning
• Production Cost
• Dynamic system analysis
• Scenario Analysis
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GE Proprietary
Data Driven Scenario Planning Can Articulate the Art of the Possible
Benefits from: • Wind forecasting • Refining up reserve requirement based on 10-min wind variability • Reducing minimum power of thermal units
• Reducing up reserve requirement (use of load control & fast-start units)
Use of multiple smart-grid strategies to enable “Big Wind” will: Reduce Variable Cost & Deliver More Renewable Energy
Cost of mitigating strategies must be balanced with potential benefits gained
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GE Proprietary
Some Perspectives on Private Finance
Mobilization • Predictability • Policy • Price
Bankability • Simplicity • Strong Cash Flows • Public sector (MOF) backstop
Constructing effective partnerships • Financial institutions • Suppliers / Integrators • Utilities / IPPS • Implementation credibility
