Land acquisition is the binding constraint on large solar parks in most of India, and reservoirs behind existing hydro and irrigation dams already have grid connections, roads and evacuation infrastructure sitting idle. Floating solar uses that surplus. The insistence on co-located storage of at least two hours is the more significant policy signal: it addresses the duck-curve problem, where solar floods the grid at midday and vanishes at the evening demand peak. By making storage a condition of the subsidy rather than an optional extra, the scheme buys dispatchable renewable power rather than merely more installed capacity.