LAKE MAINIT HYDRO ELECTRIC POWER PROJECT

AGUSAN POWER CORPORATION

PROJECT DEVELOPMENT TIMELINEYEAR MILESTONES

1991 Full Development of Lake Mainit Arrest Flooding Problem of 60,000 has Agri, Residential & Commercial LandConstruction of an open channel through the mountain ridge and into the ocean

1994 Energy Resources Development, Inc. (ERDI)Executive Order 215 – Develop 22MW Hydroelectric Power Generation FacilityNAPOCOR made Pre-Feasibility StudyPublic Hearing for Project Acceptance

1995 Development of the project awarded to Agusan Power Corp.NAPOCOR instructed APC to undertake Project Feasibility StudyCummins Cockburn LTD undertook Project Feasibility and Eng’g Studies

1996 Presented to Pres. FVR as Flagship proj of the provinceHawaiian Electric Industries (HEI) of Honolulu

1997 Failed transactions to develop the b/w HEI and NAPOCOR

2007-2010

APC partnered with TranzenUpdated Statutory Compliance, permits, LicensesUpdated conceptual designs into Detailed Engineering Designs (DED)

Key Project Objective

3

25 MW Small Hydro Project

Flood Mitigation

Power Generation

CONFIGURATION

31m asl limit

TECHNICAL

HIGHLIGHTS

ITEM DESCRIPTION

Lake Mainit Catchment Area

723 sq. km.

Lake Levels Design Level = 36.0m

Average Level = 34 m

Min. Level = 31 m

Flood Level = 39 m

Gross Head 34.70 to 35.2 m

Net Head / Rated Head 27.80 to 28.70 m

Design Discharge 98 to 102 cms

Intake 15.00m Internal Diameter Concrete Shell with 3 -3.60m x 4.50 m Intake GatesHeight = 19.30mDeck Elevation= 40.00m

Tunnel 3.055 km long,5.80m wide x 5.80m high modified horeshoe

Plant Capacity 25 MW 3 x 8.6 MW Vertical Francis Turbine

Sustainability

6

The project will use over 34 m of natural gross head that exist between Lake Mainit and the Bohol Sea. Effectively the project uses Lake Mainit as a huge natural reservoir and will have the capacity of lowering the lake water level from 34masl to 31masl The project will not utilize the entire outflow of the lake. A portion will be diverted to generate power and would still allow natural outflow through Kalinawan river for other downstream uses such as transportation, irrigation and fishing.

2011 - 2013

• APC partnered with Berkeley Energy• LMHGC was created • Updated Environmental and Social

Impact Study, Biodiversity and Fish Migration Studies

• DED docs to Good for Construction Plans, Drawings and Specification

• Grid Impact Study/System Impact Study• Power Purchase Agreement with ANECO• Energy Regulatory Commission approved

provisional rate• Bank Financial Closure• Construction time : 32 months

END OF TECHNICAL BRIEFING