Your five-star split AC may not be as energy-efficient as you thought. In fact, there may be a vast difference between the energy it promises to save and actually consumes.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/energy-efficiency-acs-drops-mercury-soars
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy-efficiency
[4] http://admin.indiaenvironmentportal.org.in/thesaurus/bureau-energy-efficiency-bee
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/electricity
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/centre-science-and-environment-cse
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy