# Types of metersand calculating consumption

Your meter measures and records the amount of electricity you consume. It is a high-precision device that was inspected in accordance with rigorous Industry Canada standards before being installed.

## Types of meters

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### •Next-generation meters

The main advantage of this meter is that it transmits electricity-use data to Hydro-Québec’s systems (remote meter reading).

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### •Dual-energy next-generation meters

The new meters are compatible with dual-energy systems (Rate DT).

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### •Electromechanical meters

They measure energy consumption (kWh) and power demand (kW).

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### •Electronic meters

These measure energy consumption (kWh), as well.

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### •Compteur électronique biénergie

If your contract is at Rate DT (dual energy), you have an electromechanical or electronic dual-register meters like this one. It indicates kilowatthours first at the higher rate, then the lower rate.

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### •Power-demand meters

Meters like this, primarily for Business Customers, measure both energy consumption (kWh) and power demand (kW).

If you have a mechanical or electromechanical meter, your actual consumption is indicated by the meter's four dials (thousands, hundreds, tens and ones). The dials measure kilowatthours (kWh) and work like those on your electricity meter at home.

The pointer position is read on the four dials from left to right. If the pointer is between two digits, take the smaller of the two except if it is between 9 and 0. in which case the reading is 9. On electronic meters, the display window shows consumption.

All meters measure cumulative kilowatthours. To calculate your consumption,

• take the latest reading and subtract the four-digit number on your previous bill

AND
• multiply the difference by the multiplier indicated on your bill

This is an example of how consumption is calculated:

To obtain your power demand (kW and kVA), apply the multiplier shown on your bill to the meter reading (W and VA), then divide by 1,000. You don't need to calculate the difference between the current and previous reading, since the power demand is reset after each reading.

Electromechanical meters have a digital display that indicates the maximum power demand.