A power plant based on super critical carbon dioxide instead of steam will be one tenth of the size of the present day power plant of the same capacity.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/%E2%80%98novel-tech-could-shrink-power-plants-tenfold-enhance-efficiency%E2%80%99-experts
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/indian-express-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/thermal-power-plants
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/industrial-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/carbon-dioxide
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy-efficiency
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/solar-thermal-power
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy