`the reserves are expected to last only 85 years`But how long you want a new reactor to work for it become feasible? Increasing the cost is true of not only in nuclear processing but also any other industrial activity.But what you mean by `cost incurred increases with time`? It is also not expected that our full need of power will be met by this nuclear deal, but only supplement it.France meet its power need to the extent of 95% by Thermonuclear process.