The Power crisis in the twin cities have compelled its dwellers to install solar systems to enjoy uninterrupted power supply.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/solar-systems-getting-popularity-twin-cities
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/business-recorder-pakistan
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pakistan
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/solar-energy
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/renewable-energy
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/islamabad
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/south-asia
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy