IPPSE estimates that US$18,000 million, or US$18 billion, spent on four hydroelectric plants would cover the country’s electricity demand for only four or five years. The figure presents the projects as a short-term contribution to power supply. It also suggests that demand is expected to grow quickly once the new capacity comes online. The estimate therefore raises questions about the pace at which additional generation may be needed. The source does not provide the demand model, plant capacities, construction schedule, or financing details. Nor does it explain what share of future electricity needs would be met by other sources.