PROJECT

Projects

Environmental & Social Review Summary

Project Number

25568

Company Name

HIDROMAULE S.A.

Date ESRS Disclosed

Feb 2, 2007

Country

Chile

Region

Latin America and the Caribbean

Last Updated Date

Nov 30, 2016

Environmental Category

B - Limited

Status

Completed

Previous Events

Approved : May 9, 2007
Signed : Jun 26, 2007
Invested : Aug 9, 2007

Sector

Large Hydro - Renewable Energy Generation

Industry

Infrastructure

Department

Gbl Infrastructure & Natural Resources

Project Description

Hidromaule S.A. (Hidromaule or the company) is a start-up hydropower generation company owned by an Italian-Chilean consortium of professionals with substantial experience in the hydropower generation industry. The company’s initial project, Lircay, is a 20 Megawatt (MW) run-of-river hydropower project located along the Lircay River in the VII Region of Chile, approximately 30 km to the northeast of the city of Talca. The project is expected to have a construction period of approximately 18-24 months. The Lircay hydropower project takes advantage of water rights owned by the Canal Maule Association, a long-established irrigation group formed mainly by medium and small agriculturists and with approximately 2,200 shareholders. The Association utilizes water in the Maule River that is stored upstream in the Maule Reservoir, diverted at the Armerillo intake and distributed through two primary canals – Maule Norte Alto and Maule Norte Bajo. The Lircay project is made possible through a surplus of water during wet periods of the year and as a result of topographic relief at a point on the Maule Norte Bajo that over looks the confluence of the Corel and Lircay rivers. Up to 28.20 m3/sec of canal flow and a head of 107 meters are available at this location. During the season of irrigation (mid-September through mid-April) water is available for power generation only to the extent that flow exceeds irrigation requirements. The rest of the year water is available up to the 54.32 m3/sec of water rights owned by the Association. The company has used the 40-year period of record for flow in the Maule River to optimize the size of the Lircay plant for year-round operation. Infrastructure required for the Lircay project includes a diversion structure on the Maule Norte Bajo canal, a 2,950 meter-long canal to bring the diverted water to a point overlooking the powerhouse, a 520 meter long steel penstock pipe to the powerhouse, and a powerhouse with two Francis-type turbine-generator groups with a 9.7 MW capacity each. Water flow required for the powerhouse at full generating capacity is 22 m3/sec. As part of the project the company will also construct a 25 km transmission line to CGE’s Maule Substation in San Clemente.

Overview of IFC's Scope of Review

IFC conducted its social and environmental review of the Hidromaule Project by appraising technical, social development, environmental, and occupational health and safety information submitted by the Project Sponsor, together with analysis and a site visit by IFC’s social, environmental, and technical specialists. Interviews were conducted with the principals of Hidromaule and officers of the Canal Maule Association. Key documents reviewed include the following: - Declaración de Impacto Ambiental, Central Hidroeléctrica Lircay, prepared for Hidromaule by Jaime Illanes y Asociados, Santiago, Chile, July 2006 - Central Hidroeléctrica LIRCAY, Evaluación Económica, Revisión No. 2, prepared by Hidromaule, October 16, 2006 - Resolución Exenta No. 414, CONAMA VII, Región del Maule, November 3, 2006 - Hidromaule S.A., Central Lircay, Hidrología and Interconexión al SIC, presentations to IFC, November 2006 The first and third documents above are available on CONAMA’s website at the following addresses: http://www.e-seia.cl/documentos/documento.php?idDocumento=1578771 http://www.e-seia.cl/elementosFisicos/enviados.php?id_documento=1578771 http://www.e-seia.cl/documentos/documento.php?idDocumento=1805021 Additional project documentation presented to CONAMA is available at the following address: http://www.e-seia.cl/expediente/ficha/publica/fichaPrincipal.php?id_expediente=1578767

E & S Project Categorization and Applicable Standard

Environmental and Social Mitigation Measures

Stakeholder Engagement