Abstract

This paper analyses the technical and business cases for a hybrid floating solar and pumped hydro facility to provide secure, sustainable baseload power to local industrial and commercial users through bilateral PPA contracting and private wire connections. Based upon a realistic hydrological setting with a range of assumptions for both the floating solar and the pumped hydro installations, daily optimisation of operations to provide different levels of secure baseload PPA contracts are optimised. The research shows how the premium for baseload contracts depends upon the size of the contracts and the size of the solar installation. The premia are the opportunity costs to the hydro operators from potential sales to the wholesale market. We find that the premia are affordable to local users and that the combination of solar and pumped storage thereby enables a hydro operator to offer higher levels of secure baseload power throughout the year to local industries where the national power resources are otherwise unreliable.

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