The findings of a field test in Hyderabad, India.  The report finds that whitening roofs yielded 10-19% air conditioning savings on the top floor.  Assuming growth of approximately 100,000 m2 over the next 10 years, white roofs could save 13-14 GWh in year 10, 11-12 kilograms of CO2 per m2, save approximately 100 Rupees per square meter and have a cooling potential of up to 2 degrees Celsius.

Tengfang Xu (Lawrence Berkeley National Lab (LBNL)), Haider Taha (Lawrence Berkeley National Lab (LBNL)), Craig Wray (Lawrence Berkeley National Lab (LBNL)), Jayant Sathaye (Lawrence Berkeley National Lab (LBNL)), Vishal Garg (International Institute for Information Technology Hyderabad (IIIT-H)), Surekha Tetali (International Institute for Information Technology Hyderabad (IIIT-H)), M Hari Babu (International Institute for Information Technology Hyderabad (IIIT-H)), K. Niranjan Reddy (International Institute for Information Technology Hyderabad (IIIT-H))

Akbari, Hashem, Tengfang Xu, Haider Taha, Craig Wray, Jayant Sathaye, Vishal Garg, Surekha Tetali, M. Hari Babu, and K. Niranjan Reddy, 2011. Using Cool Roofs to Reduce Energy Use, Greenhouse Gas Emissions, and Urban Heat-island Effects: Findings from an India Experiment. Lawrence Berkeley National Laboratory Report.