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Case Report

Hydroenergy Harvesting Assessment: The Case Study of Alviela River

1
CERIS, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
2
EPAL, Empresa Portuguesa de Águas Livres, 1800-031 Lisboa, Portugal
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editors: Helena M. Ramos, Aonghus McNabola and Armando Carravetta
Water 2021, 13(13), 1764; https://doi.org/10.3390/w13131764
Received: 12 May 2021 / Revised: 17 June 2021 / Accepted: 24 June 2021 / Published: 26 June 2021
(This article belongs to the Special Issue Energy Recovery and Hybrid Solutions in the Water Sector)
The current paper aims to develop and to apply a methodology for assessing the hydroenergy harvesting potential in water systems taking into account both technical and economic aspects. The methodology is a five-step procedure: (i) data collection and analysis; (ii) technology identification; (iii) energy harvesting assessment; (iv) economic analysis; and (v) final recommendation of the technological solution. The case study is located in the water source of the Alviela River, in Portugal. The energy harvesting potential is assessed for three turbine types, adequate for the 2.5 m available head: two propeller turbines, with and without adjustable blades, and the Archimedes screw turbine. Results show that the most feasible solution is the Archimedes screw turbine, with 3 m3/s rated discharge and 55 kW rated power, the capital cost of 160 k€, the internal rate of return above 10% and the payback period of eight years. This solution has the potential for harvesting energy in low-head sites with a wide range of flow rates. View Full-Text
Keywords: hydropower; Archimedes screw turbine; energy recovery; economic analysis hydropower; Archimedes screw turbine; energy recovery; economic analysis
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MDPI and ACS Style

Oliveira, P.F.G.; Martins, N.M.C.; Fontes, P.; Covas, D. Hydroenergy Harvesting Assessment: The Case Study of Alviela River. Water 2021, 13, 1764. https://doi.org/10.3390/w13131764

AMA Style

Oliveira PFG, Martins NMC, Fontes P, Covas D. Hydroenergy Harvesting Assessment: The Case Study of Alviela River. Water. 2021; 13(13):1764. https://doi.org/10.3390/w13131764

Chicago/Turabian Style

Oliveira, Pedro F.G., Nuno M.C. Martins, Pedro Fontes, and Dídia Covas. 2021. "Hydroenergy Harvesting Assessment: The Case Study of Alviela River" Water 13, no. 13: 1764. https://doi.org/10.3390/w13131764

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