To the editor:
Over the past year, smart meters have been a major topic of discussion in British Columbia, as BC Hydro set about modernizing the province’s electrical grid and updating its aging infrastructure.
I believe your readers would be interested in knowing more about one of the most significant, but less well known, energy savings made possible by smart meters; namely, those energy savings achieved through voltage optimization and other operational efficiencies.
With old-fashioned analog electrical meters, an electrical utility has no way of knowing how much electricity is actually being consumed along the grid at any given moment in time.
To ensure there is enough electricity available on the grid to reliably meet consumption, utilities must, therefore, put more electricity onto the grid than they expect will be used.
If more electricity is put onto the grid than is being used, a significant amount of electricity ends up going to waste. Depending on the time of year, the amount of extra energy going to waste ranges from eight per cent to as much as 14 per cent, with 10 per cent being a good, average rule-of-thumb.
With digital smart meters, however, electrical utilities are able to receive real-time measurement data about the electricity demands being placed on the distribution grid. This real-time information allows utilities to gauge more precisely how much electricity actually needs to be placed on the grid (and where) at any given moment in time, while still maintaining reliability of service.
The end result is a significant reduction in wasted electricity because better data leads to less wasted energy while also helping to avoid the capital cost of new generating, transmission and distribution infrastructure.
For those interested in knowing more about the benefits of voltage optimization and the other operational efficiencies made possible by smart meters, I recommend BC Hydro’s business case for smart meter implementation, which is available on BC Hydro’s website at www.bchydro.com and search for smart meters.
David Field, co-spokesperson
B.C. Citizens for Green Energy
