Porce III: Facts and figures
Premium Content
27 February 2008
| Construction start date | January 2006 |
| Completion date | 2010/2011 |
| Total contract value | US$ 920 million |
| Contract 1 | Dam and some tunnels, US$ 240 million |
| Contract 2 | Powerhouse and some tunnels, US$ 209 million |
| Dam | |
| Concrete faced rockfill dam | |
| Height | 151 m |
| Width at base | 400 m |
| Crest length | 426 m |
| Crest width | 8 m |
| Fill | 4.15 million m3 |
| Tunnels | |
| Diversion tunnel | 98.4 m2 in section; 653 m long |
| Upper headrace tunnel | 86.4 m2 in section, 12.3 km long |
| Lower headrace tunnel | 86.4 m2 in section, 304 m long |
| Pressure shaft | 83.3 m2 in section, 149 m long |
| Tailrace and restoration tunnel | 90.8 m2, 828m5 m long |
| Adits | 3 x 32.1 m2, totalling 1.87 km long |
| Power station | |
| Hydrostatic head | 322 m |
| Four x 172 MW Francis turbines | |
| Annual generation | 3106 GWh |
Entering a new era but aspiring to continue Harry Baker’s legacy
New trio hailed as a fundamental shift in heavy-haul equipment design
When rising demand threatened to outpace a genset manufacturer’s testing capacity, a modular test cell bridged the gap – and laid the groundwork for future growth.