Agreed, that goes in the low hanging fruit part. 7-11 spaceships, open shop fronts, refrigerators with no front glass, frigid shopping malls. There are something like 9,200 convenience stores in Taiwan. Now it was worse a few years back, offices in particular have changed tremendously, but there is still a lot that could be done.
Like MM said, cheap electricity caused people to disregard saving electricity. With more expensive electricity, people will actively demand better insulation in their houses, doors and fittings and shop owners 'marketing' vs 'cost' equation will change dramatically.
This issue comes back around to wages of course, it doesn't SUIT the moneyed interests to increase inflation which would drive up their cost from both sides, services and wage increase. They are quite content for the workerbots to use 1990s scooters to get around , after all a vacation in Japan or a visit to the second home in the States can work wonders for the spirits.