NYSEG provided CNYCentral with this information on its position, which indicates a primary concern over reliable power for its Auburm area customers, and preference for building an additional transmission line rather than getting power from the Lansing plant:
On January 18, 2013, the PSC directed NYSEG to evaluate repowering the Cayuga plant as an alternative to the companyâ??s proposed transmission upgrades. NYSEG was required to submit a report examining the relative costs and benefits of repowering the plant compared to the costs and benefits of alternative transmission upgrades along with its recommendation for future Commission action. NYSEGâ??s objective was to identify the best option to ensure continued safe, reliable service for our customers.
NYSEGâ??s study indicates that the overall costs and benefits of transmission upgrades outweigh the costs and benefits of repowering the Cayuga plant.
NYSEG has an existing reliability need to strengthen its system for the intermittent loss of generation at the Cayuga site (Phase 1 transmission project).
Having both Cayuga generators unavailable would create an additional reliability need on NYSEGâ??s system (Phase 2 transmission project).
Without either of the Cayuga generators operating and absent the transmission reinforcements, NYSEGâ??s Auburn area customers may be exposed to extended outages for approximately 500 hours each year.
Phase 1: Construct a new 14.5 mile, 115-kilovolt (kV) line in existing electric transmission rights of way from NYSEGâ??s State Street Substation in the City of Auburn to National Gridâ??s Elbridge Substation in the Town of Elbridge.
Phase 2: NYSEG and National Grid each own a portion of the existing transmission line from State Street Substation to Elbridge Substation, which will become overloaded if the Cayuga generators are unavailable. This line must be rebuilt to a higher capacity.
Phase 1 is dependent on receiving an Article VII certificate and other agency approvals. NYSEG will work to complete construction and energize the new transmission line in mid-2016. Phase 1 must be complete before Phase 2 construction can begin in order to maintain reliability. NYSEG will work to complete construction of Phase 2 by mid-2017.