The gas meters are generally located under the kitchen sink.
In this photo the large grey unit meters stove and gas heater use, the meter with the red lid meters hot water.
Hot water is created by boilers in the basement and pumped up to units through this meter.
Hot water usage is converted to gas usage by your gas retailer.
Electricity meters are located on each floor (level 6 meters are on level 5).
If you need access to your electricity meter email the strata exec.