It   is  difficult  to  see  how  reducing  emissions  from  buildings  could  be  considered  "low  hanging  fruit".

I  venture  an  estimate  that  85%  of  buildings  in Canada  cannot  make  much  of  an  improvement   in  insulation  efficiency  due  to  being  relatively  new  or  being  upgraded  in  previous  programs.

If  the  intention  is  that  the  government  will  mandate  emissions  reductions  by  requiring  electric  space  and  water  heating  the  results  will  be  limited  to  areas  that  have  a  surplus  of  non  emitting  electricity  available.

Reducing  emissions  from  12%  of  Canada's  total  to  8%  might  be  feasible  but  it  is  hardly  'low  hanging  fruit'.