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Smart Energy NetworksSmart Energy Networks

David Teichroeb Business Development, Alternative & Emerging TechnologyFuture of Energy Summit, Toronto, June 8, 2012

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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

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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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Diversity with Alternative Technology

• 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

• 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

Complement renewables, reduce costs, increase environmental benefits, and support technology innovation

Hybrid Fuel Cell @ Enbridge, Toronto, Ontario

5 MW Heat to Power Plant on Alliance Pipeline

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Power to Gas; Seasonal Electricity Storage

• Off-Peak electricity to hydrogen with electrolysis of water

• Blending of hydrogen with methane in gas grid

• Blended gas in cavern or pipeline

• Blended gas to electricity at peak time / peak season

CC-Turbine

Cavern Storage

PEM Electrolysis

Natural Gas Network

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Storing & Transporting Electricity with Same Solution

Distributed nature of pipelines affords Power to Gas TWh-Scale with connectivity across province

• 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

• Power is managed in both time and geography

Extensive Gas Storage in Southwestern Ontario - Ontario underground storage in excess of 200 billion cubic ft

Extensive gas transmission from southwestern and northern Ontario offers congestion relief

Can charge and discharge by leveraging high pressure gas networks

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Conclusions

• 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)

“Power to Gas” part of smart energy grids

Source:

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