Date of Construction -
Power House: 1921
Stone dam and canal: installed 1899, repaired 1981 and 2007
Mechanical equipment and switchgear: installed 1981, rebuilt 2007
Dam -
Granite stone blocks
19 ft water-level drop
Diverts water to canal
Four head gates control water flow to canal
Regulatory -
FERC Exemption ID #4440
Qualifying facility
Generation Capacity -
400 KW rating
Unit 1 installed, 192 KW rated capacity at 0.8 pf
Unit 2 acquired and waiting for installation, 75 KW rated capacity at 0.8 pf
Equipment -
Vertical axis Francis turbine (30Z)
GE synchronous generator, 2300 Volts, 3 phase, 60 Hz
Switchgear with protective relays and breakers
Transfomer, 2007, 500KVA, 3 phase, 25 KV pri 2.3 KV sec
1.8 mile powerline with right of way, cleared and repaired 2007-2008
All new metal gates installed within last 2 years
Chain hoists for canal gates and head gates
Turbine rebuilt in 2007
2 ton hydraulic track crane
3 ton traveling crane in powerhouse
Numerous hand and electric tools
Power Production -
Facility achieved full operations in late 2008
Current configuration, projected: 1,000,000 kWHr/Year
With 2nd generator installed, projected: 1,300,000 kWHr/Year
River Flow -
Watershed area = 194 square miles
Average flow = 277 cfs, Median flow = 168 cfs
Link to upstream USGS gaging station (Rockfish River @ Greenfield, VA Station# 02028500)