Demand Response Option
Additional resources
Here are some resources to help you better understand the Demand Response (DR) Option and reduce your power demand during peak demand events.
Understanding power and power demand
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What's the difference between power and energy?
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What are the different ways of measuring power?
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Why is there a demand charge? Do you pay for your power demand?
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How is billing demand determined?
The DR Option: A practical guide
We have developed a presentation addressing many of your questions:
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Which loads have the most impact during peak demand events?
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What measures should you apply to reduce your electricity use?
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How can you optimize your curtailment measures to maximize your credit?
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Discover—or rediscover—key concepts to get the season off to a good start!

Winning strategies for maximizing your credit
Here are a few curtailment measures you could implement:
- Shutting down or adjusting heating, ventilation and air-conditioning (HVAC)
- Managing production equipment
- Using fuel-fired backup boilers
- Using generators
Other useful information
- Calculation of Effective Interruptible Power and Examples of Application [PDF 732 kB]
- Hydro‑Québec's Conditions of Service [PDF 1.57 MB]
- Helping you understand your electricity rate
- Detailed description of service charges applicable to your contract
- Glossary
- Our offers related to managing power demand