晓枫家的电费是:0.05×(5566-5468),=0.50×97,=48.5(元),白杨家的电费:0.55×32+0.3×66,=17.6+19.8,=37.4(元),48.5>37.4,48.5-37.4=11.1(元).答:白杨家交的电费少,少11.1元.