There are significant variances between cities, and I think Chanos is underestimating the poor quality of current housing (has he spent a night in local Beijing housing yet?), the pent up demand to upgrade, and the increasing urbanization of rural suburbs.
Thus when it moves on to highlight the costs of extending the grid to these sparsely inhabited rural backwaters, it fails to realize that the same economic forces driving up demand for electricity are also inducing strong urbanization.