[2][13] Water from both, the Moragahakanda and Kalu Ganga reservoirs, will be primarily used to support agricultural needs to an area of at least 81,422 ha (814.2 km2).

This will increase rice production by 81% or 109,000 t (240,000,000 lb), amounting to an estimated monetary benefit of US$1.67 million, annually.

[12] The reservoirs would also create a source of inland fishing, generating approximately 4,700 t (10,400,000 lb) or the monetary equivalent of US$1.67 million, annually.

[12] Along with the reservoir of the Kalu Ganga Dam, an increase of 64,000,000 m3 (2.3×109 cu ft) of potable and industrial water supply could be ensured by 2032, to regions including Matale, Anuradhapura, Trincomalee, and Polonnaruwa.

The substitution of this hydropower with traditional fossil fuel power generation is estimated to save up to US$ 2.49 billion annually.

Construction of the power station costs US$382 million, with an EIRR (Economic Internal Rate of Return) of 22%.