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Published in: Water Resources Management 11/2015

01-09-2015

Economic Analysis of a Rainwater Harvesting System in a Commercial Building

Authors: C. Matos, I. Bentes, C. Santos, M. Imteaz, S. Pereira

Published in: Water Resources Management | Issue 11/2015

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Abstract

This research evaluates which is the most cost-efficient rainwater harvesting (RWH) system in a new commercial building located in the north of Portugal, in Braga. Based on the economic analysis, the cost-efficiency of the presented RWH strategies may be considered for the case studied.
The results of this research indicate that RWH scenarios proposed are cost-efficient. Considering a 10 % discount rate, the water price charge in the municipally of Braga and the cost of the infrastructures would be enough to make RWH cost-efficient for this option. At this discount rate, the payback period ranges from 2 to 6 years and the internal rate of return would range from 23 to 76 %. If a discount rate of 5 % were considered, the payback periods would be reduced by approximately 1 year.

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Metadata
Title
Economic Analysis of a Rainwater Harvesting System in a Commercial Building
Authors
C. Matos
I. Bentes
C. Santos
M. Imteaz
S. Pereira
Publication date
01-09-2015
Publisher
Springer Netherlands
Published in
Water Resources Management / Issue 11/2015
Print ISSN: 0920-4741
Electronic ISSN: 1573-1650
DOI
https://doi.org/10.1007/s11269-015-1040-9

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