| Caliraya Dam | |
|---|---|
 The intake next to the embankment dam | |
.svg)  Location in Luzon .svg) Location in the Philippines | |
| Official name | Kalayaan Pumped-Storage Project |
| Country | Philippines |
| Location | Laguna (province) |
| Coordinates | 14°17′18″N 121°30′5″E / 14.28833°N 121.50139°E |
| Status | Operational |
| Construction began | 1939 by the Pedro Siochi and Company |
| Dam and spillways | |
| Type of dam | Embankment dam |
| Impounds | Caliraya River |
| Spillways | 1 |
| Spillway type | Chute spillway |
| Reservoir | |
| Creates | Lake Caliraya |
| Total capacity | Caliraya Dam and Lumot Dam combined 30,000,000 cubic metres (1.1×109 cu ft) (between maximum and minimum level) |
| Catchment area | 92,000 square metres (990,000 sq ft) |
| Power Station | |
| Operator(s) | CBK Power Co. Ltd. Owner: National Power Corporation |
| Type | Pumped-storage hydroelectricity and conventional dam |
| Turbines | 2 Francis-type |
| Installed capacity | 300 MW (1983)[1] 684.6 MW (2008)[2] Max. planned: 900 MW (Stage I); 2000 MW (Stage II)[3] |
Caliraya Dam is an embankment dam located in the town of Lumban province of Laguna, in the Sierra Madre Mountain Range of the Philippines. The reservoir created by the dam, Lake Caliraya, initially supplied one of the oldest hydroelectric plants in the Philippines, and later became a popular recreational area for numerous water sports and fishing. The dam's construction was started in 1939 under the supervision of the architecture firm of Pedro Siochi and Company and a small hydroelectric plant was operated in 1942.[4]
Lake Caliraya was later connected with another man-made lake, Lumot Lake, to provide more water through a 2.3 km (1.4 mi) underground penstock.[5] Later still the dam and lake were used as the upper reservoir for the Kalayaan Pumped-Storage Hydroelectric plant located west of Lake Caliraya, with Laguna de Bay as the lower reservoir.[1]
- ^ a b Task Committee on Pumped Storage (1996). "Hydroelectric Pump Storage Technology: International Experience", p.28. American Society of Civil Engineers.
- ^ JCMiras (May 19, 2008). "Hydroelectric Power Plants in the Philippines". Retrieved on 2011-03-01.
- ^ "Kalayaan Power Storage". J Power EPDC. Retrieved on March 2, 2011.
- ^ JCMiras (January 9, 2008). "First and Oldest (Hydroelectric) Power Plants in the Philippines". JCMiras.net_02. Retrieved on 2011-03-02.
- ^ "Pumped Storage Hydroelectric Plants Asia Pacific" Archived December 8, 2012, at archive.today. Philippine Sportfishing. Retrieved on February 23, 2011.