There is no growing electricity demand. 

From the BCUC executive summary:
Flattening electricity demand
Many participants, including BC Hydro,
recognize that, since the recession, demand
has not returned to what it was and evidence
indicates that total demand is not growing
in most places in North America – in most
cases it is flat or declining. The Panel finds BC
Hydro’s expected compound growth rate for
the residential, commercial and light industrial
sectors to be significantly higher than the flat
or declining growth rates forecast in other
North American jurisdictions. In the Panel’s
view, a likely explanation for this is the result
of lower demand-side management (DSM)
spending and DSM program differences. For
example, BC Hydro has not implemented
time-of-use and other load curtailment
measures that have been broadly adopted
elsewhere in North America.