Report on solar power puts the capital cost of household systems at $18 billion, with benefits of $9 billion.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/cost-household-solar-has-outweighed-benefits-grattan-institute-report
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/age-australia
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy
[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/australia
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/electricity