MT. ELBERT PUMPED-STORAGE POWERPLANT
Mt. Elbert Pumped Storage Powerplant
Mt. Elbert Pumped Storage Powerplant
Mt. Elbert Pumped Storage Powerplant - Back View
| Plant Contact: | Michael Ruehrwein |
| Telephone Numbers: | Phone: (719) 486-2325 Fax: (719) 486-3631 |
| E-Mail Address: | mruehrwein@gp.usbr.gov |
| Reclamation Region: | Great Plains |
| NERC Region: | Western Electricity Coordinating Council, Rocky Mountain Power Area |
| PMA Service Area: | Western Area Power Administration, Rocky Mountain Region |
| Project Authorization: | The Congress authorized the Fryingpan-Arkansas Project under Public Law 87-590 (77 Stat. 393), signed by the President on August 16, 1962. |
| Project Purposes: | The Fryingpan-Arkansas Project is a multi-purpose transmountain diversion development in southeastern Colorado. It makes possible an average annual diversion of 69,200 acre-feet of surplus water from the Fryingpan River and other tributaries of the Roaring Fork River on the western slope of the Rocky Mountains to the Arkansas River on the eastern slope. |
| Plant Purpose: | Generation of hydroelectric power for the project and supports peak capacity needs of the interconnected power system. |
| Plant Facts: | The powerplant was designed with modern architectural lines and is an all-concrete structure equivalent to a 14-story building, although most of the structure is below ground on the edge of Twin Lakes. The power generated at Mt. Elbert derives from water originally pumped from Twin Lakes, which acts as the Mt. Elbert afterbay, and also from supplemental water delivered from Turquoise Lake to the forebay. The generators are designed to operate as a 170,000-horsepower electric motor which drives the turbines in reverse, and pumps water back up to refill the forebay. This pumping mode normally will be used during the very early morning hours, when power demands are low and surplus low-rate power is received from other generating stations. This pump-back storage principle is advantageous since the generating units can be started quickly and adjustments of power output can be made rapidly to respond to varying patterns of daily and seasonal power demands. |
| Plant History: | Normal operations since completion in 1981. |
| Present Activities: | SF6 Switchyard breakers (replace oil circuit breakers); replace Unit 1 exciter system; unit cooling water and plant water system replacements; Unit 2 transformer bushing replacement; Unit 1 transformer gasification testing; main control board upgrades. |
| Future Planned Activities: | None |
| Special Issues: | Plant generation restrictions are not on generator size, rather the restrictions on the penstocks. |
| River: | Trans Mountain Diversion |
| Plant Type: | Pump Storage |
| Powerhouse Type: | Above Ground |
| Turbine Type: | Francis |
| Original Nameplate Capacity: | 200,000 kW |
| Installed Capacity: | 200,000 kW |
| Year of Initial Operation: | 1981 |
| Age: | 24 years |
| Net Generation: (FY 2005) |
262,837,000 kWh |
| Rated Head: | 448 feet |
| Plant Factor: (FY 2005) |
15.14 percent |
| Remotely Operated: | No |
| Production Mode: | Peaking |
Click here for graphs and charts of Mount Elbert Pumped-Storage Powerplant performance.
Click here for information on the Mount Elbert Forebay Dam.
Click here for information on the Fryingpan-Arkansas Project.
Revised May 24, 2006 Hydropower Site Map Help