KVA is a measure of demand load while KWH is a measure of usage. India's per-capita consumption is 750 KWH or 750 units, while the world average is 1,000 KWH per annum. A 40W tube can consume one KWH power in 250 hours. Power for illuminating the bridge would be supplied by Brihanmumbai Electric Supply and Transport and Reliance Power.