Economic Analysis of a Rainwater Harvesting System in a Commercial Building

• Type: Article in International Scientific Journal
• Date: 2015

Authors

C. Matos (Author) Other; & I. Bentes (Author) Other; C. Santos (Author) FEUP; M. Imteaz (Author) Other; S. Pereira (Author) Other

Journal

Title: Water Resources Management

Vol. 29 No. 11

Pages: 3971-3986

ISSN: 0920-4741

Publisher: Springer Nature

Indexing

ISI Web of Science

Scopus

INSPEC

Scientific classification

FOS: Engineering and technology > Civil engineering

CORDIS: Technological sciences > Engineering > Civil engineering

Other information

DOI: 10.1007/s11269-015-1040-9

Abstract (EN): 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 16