The Federal Energy Regulatory Commission on May 6 went out for comment on a March 24 application from Black Mountain Hydro LLC for a preliminary permit, under which the company would study the feasibility of the 600-MW Southern Intertie Pumped Storage Project.
This project is to be located on Black Mountain, near Yerington in Mineral and Lyon counties, Nevada. The sole purpose of a preliminary permit, if issued, is to grant the permit holder priority to file a license application during the three-year permit term.
The proposed closed-loop pumped storage project would consist of:
- an upper reservoir in a natural depression having a total storage capacity of 4,460 acre-feet at a normal maximum operating elevation of 7,410 feet mean sea level (msl);
- a 105-foot-tall, 1,500-foot-long lower dam of indeterminate construction;
- a lower reservoir having a total storage capacity of 4,384 acre-feet at a normal maximum operating elevation of 5,500 feet msl;
- a 2,200-foot-long, 16.5-foot-diameter, concrete low pressure tunnel;
- a 7,850-foot-long 16.5-foot-diameter concrete and steel lined high pressure tunnel;
- a 2,200-foot-long, 20-foot-diameter concrete lined tailrace;
- a 300-foot-long, 80-foot-wide, 50-feet-high underground powerhouse containing three 200-MW pump-turbine generator units;
- a 4.6-mile-long 230-kV transmission line; and
- a 230/500 kV substation.
The estimated annual generation of the Southern Intertie Project would be 1,577 gigawatt-hours.
The applicant contact is: Mathew Schapiro, Chief Executive Officer, Gridflex Energy LLC, 1210 W. Franklin St., Ste. 2, Boise, Idaho 83702, phone (208) 246-9925.
The deadline for filing comments, motions to intervene, competing applications (without notices of intent), or notices of intent to file competing applications is 60 days from the issuance of this May 6 notice.