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Hidromaule II

Environmental & Social Review Summary

This Environmental and Social Review Summary is prepared and distributed in advance of the IFC Board of Directors’ consideration of the proposed transaction. Its purpose is to enhance the transparency of IFC’s activities, and this document should not be construed as presuming the outcome of the Board of Director’s decision. Board dates are estimates only.
Any documentation which is attached to this Environmental and Social Review Summary has been prepared by the project sponsor and authorization has been given for public release. IFC has reviewed this documentation and considers that it is of adequate quality to be released to the public but does not endorse the content.
Project number 26483
CountryChile
SectorUtilities
DepartmentInfrastructure
Company nameHidroelectrica Rio Lircay S.A.
Environmental categoryB
StatusDropped
Date ESRS disclosedMay 11, 2009
View Summary of Proposed Investment (SPI), click here
OverviewCategory & Applicable StandardsKey Issues & MitigationCommunity EngagementsClient's Documentation

Overview of IFC's scope of review
IFC visited the proposed project region and interviewed project development personnel to evaluate their management systems and procedures and to understand how these will be implemented during construction and operation of the proposed project facilities. IFC reviewed a series of environmental and social management systems documents and permit applications for the proposed project including:

- Declaration of Environmental Impact (DIA) and related annexes
- Draft Environmental and Social Management Plans
- Lead contractor health, safety, and environmental procedures
Project description
Hidroelectrica Rio Lircay S.A. (“HRL” or the “Company”) is a Chilean Sociedad Anonima established to develop and operate two run-of-river hydropower projects in Chile’s VII region: (i) a 6 Megawatt (MW) plant (“Mariposas”), and (ii) a 12.8 MW plant (“Providencia”). The Project is being developed by (i) Italian company Sorgent-e S.R.L. (“Sorgent-e”) who will have 53% direct and indirect ownership of the Company, and (ii) Chilean company Empresa Austral Andina S.A. (“EAA”, together with Sorgent-e S.R.L. the “Sponsors”) who will have 47% direct ownership.

The Project consists of the construction and operation of the Mariposas and Providencia plants which are the second and third in a series of run-of-river hydropower plants being developed by the Sponsors located in the same irrigation canal network. The first plant, also an IFC investment (“Hidromaule”, Project ID 25568), is comprised of a 20MW run-of-river hydropower plant (“Lircay”) with a 27 km transmission line connecting the plant to a local distribution company’s substation. The Lircay plant has been operating successfully since October 2008. The proposed Project is being developed under the same ownership structure and management and with the same group of key contractors as was Hidromaule.

The Mariposas plant considers the use of the water rights of ACM an irrigation association (Asociacion Canal Maule). For this development the water would be used starting at the end of the first section of the Maule Norte Alto Channel (MNAC) and its natural discharge into the Mariposas creek and the start of the Mariposas irrigation channel without interfering with the established irrigation uses. The difference in elevation (gross head) is 35.25 m. Project works will include elevation of the borders of the MNAC channel and improvements to the existing Paso Nevado tunnel and the Teatinos siphon. A forebay or charge tank will be built from which a penstock (pressure pipe) of 2.7 m diameter and 220 m in length will carry the water to a power house. The water discharge will be to the Mariposas channel.

Providencia HPP considers the use of part of the water rights that flow in the second section of the Maule Norte Bajo Channel (MNBC) and water rights of the Irrigation Cooperative of the Center Limited (Cooperativa de Riego del Centro Limitada). The project works will include improvements of the walls of the channel, rehabilitation of a small length of an existing tunnel, and improvements of two bridges. A new channel will conduct the water to a charge tank, from which a penstock with a diameter of 3.0 m and 174 m of length will carry the water to the power house that will be equipped two Francis units of 8.5 and 4.3 MW respectively. The water discharge will flow to the Picazo creek and then to the Lircay river.

The Mariposas and Providencia plants will be connected to the existing Lircay substation via newly constructed transmission lines that are 10 km and 11 km long, respectively.