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IMPACT OF LOOP FLOW ON SYSTEM OPERATION I I I I I I I I I I I I I I I I I I 72 ADEQUACY OF THE TRANSMISSION SYSTEM During 1982 the WSCC interconnected transmission system is projected to adequately accommodate firm and economy/surplus schedules in most areas. Transmission limitations in the Rocky Mountain Power Area and the continuing adverse impacts of loop flow are anticipated to pose problems in 1982 which are similar to those experienced in 1981. It is anticipated that loop flow will continue to adversely impact system operations in 1982 by limiting the ability to transfer additional non-oil fired energy to those areas heavily dependent upon oil-fired generation, and necessitating curtailments Df schedules throughout the WSCC region. Therefore, the Council is placing the highest priority in pursuing an equitable and effective solution to the loop flDW problem. SIGNIFICANT FACILITY ADDITIONS AND DELAYS During 1982, the generation capability of the total WSCC region is projected to increase by 6076 MW or 5.0 percent. The net resource additions will include 2184 MW of nuclear capability, 1564 MW of coal-fired capability, 954 MW of pumped stDrage capability, 933 MW of conventional hydro capability, and 441 MW from various other resource types. The principal unit additions (200 MW or greater) during 1982 are tabulated below: Net Capacity Fuel Area Plant Name (MW) ~ RMPA Laramie River Station 1* 550 Coal RMPA Laramie River Station 2 550 Coal AZ-NM San Juan 4 472 Coal CA-NV New Melones 300 Hydro CA-NV San Onofre 2 1100 Nuclear CA-NV Diablo Canyon 1 1084 Nuclear CA-NV Helms P.S. 1 374 Pumped Storage CA-NV Helms P.S. 2 374 Pumped Storage * Unit previously synchronized to MAPP. Planned transmission additions during 1982 include 1560 net circuit miles of new transmission. These additions are comprised of 364 miles of 500 kV, 585 miles of 345 kV, 566 miles of 230 kV and 45 miles of 115-161 kV transmission.