1. Smart Energy Networks
David Teichroeb
Business Development, Alternative & Emerging Technology
Future of Energy Summit, Toronto, June 8, 2012 1

2. Innovating for Smarter Energy Grids
Energy Exchanges Between Silos
• Energy exchanges bring
new economic,
environmental , and
operating flexibility to
power grids
• Power to Gas with H2
from electrolyzers
• Renewable gas back to
power
Source Data: Rethinking Energy Conservation in Ontario, May 2010 Report 2

3. Established Green Energy
• Approximately $3 billion invested in
green and alternative energy
• Wind Power - 1000 MW operating or
under construction in Alberta, Sask,
Ontario , Quebec & Colorado
• Eight Projects
• Solar – 150 MW in Ontario and
Nevada
• Three Projects
• Sarnia Solar project at 80 MW is
one of the largest in North America
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4. Diversity with Alternative Technology
Complement renewables, reduce costs, increase environmental
benefits, and support technology innovation
• Canada’s largest stationary fuel
cell at 2.2 MW
– Urban power for 1700 homes
– Runs on natural gas or
renewable natural gas without
burning fuel
Hybrid Fuel Cell @ Enbridge, Toronto, Ontario
• Waste heat to Power
– Four, 5 MW projects
recovering gas pipeline
compressor heat (NR Green
Power)
– Investment in Genalta Power
to develop lower-cost
technology for smaller sizes 5 MW Heat to Power Plant on Alliance Pipeline
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5. Power to Gas; Seasonal Electricity Storage
• Off-Peak electricity to hydrogen with electrolysis of water
PEM Electrolysis
• Blending of hydrogen with methane in gas grid
Natural Gas
Network
• Blended gas in cavern or pipeline
Cavern Storage
• Blended gas to electricity at peak time / peak season
CC-Turbine
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6. Storing & Transporting Electricity with Same Solution
Distributed nature of pipelines affords Power to Gas TWh-Scale with
connectivity across province
Can charge and discharge by leveraging
high pressure gas networks
• Power to Gas breaks
many of the technical
limitations of conventional
storage
• Charging is possible
through a distributed
network of pipelines
• Seasonal, TWh storage is
possible with extensive
gas cavern storage assets
Extensive gas transmission from
southwestern and northern Ontario • Power is managed in both
offers congestion relief
time and geography
Extensive Gas Storage in Southwestern Ontario
- Ontario underground storage in excess of 200 billion cubic ft
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7. Conclusions
“Power to Gas” part of smart energy grids
• Align the flexibility and scale of natural
gas grids with the needs of the
electricity network.
• Stabilize power grids with growing mix
of intermittent renewables
• Cost efficiencies - pipelines, storage
and gas power plants already exist
• Seasonal electricity storage with
hydrogen
• Alternative transmission network with
pipelines (relieve congestion)
Source:
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