On November 13, 2017 the New York Independent System Operator, Inc. (“NYISO”) determined that Entergy Nuclear Power Marketing, LLC (“Entergy”) had submitted a complete Nuclear Generator Deactivation Notice for the proposed retirement of the Indian Point Energy Center Units 2 & 3 (individually, “IP2” and “IP3,” respectively, and collectively, “IPEC” or “IPEC Facility” or “Generators”). Entergy reported that it intends to deactivate the 1,299 MW (nameplate) IP2 unit on April 30, 2020 and the 1,012 MW (nameplate) IP3 unit on April 30, 2021
For information purposes, the NYISO performed a scenario assessment to evaluate the reliability of the system without three major generation facilities currently under construction (Bayonne Energy Center II Uprate, CPV Valley Energy Center, and Cricket Valley Energy Center). This scenario identified both resource adequacy and transmission security reliability criteria violations without IPEC.
For this scenario, resource adequacy was assessed for the entire ten-year planning horizon. The resource adequacy scenario results show that the system exceeds the LOLE criterion starting in year 2021 upon deactivation of IPEC, with the exceedance growing worse through 2027.
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See Note: http://www.nyiso.com/public/markets_operations/committees/meeting_materials/index.jsp?com=bic_espwg#.
Also see Note: There are generators modeled as deactivated in the base case that have not yet completed their Generator Deactivations Notices. The
local reliability impacts of each generator deactivation are addressed by the NYISO and the Responsible Transmission Owner in each
generator’s Deactivation Assessment when the notice has been deemed complete.
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Compensatory megawatt analysis was performed to quantify the shortfall of power by year and by zone. Compensatory megawatt amounts are determined by adding generic perfect-capacity resources to zones to address the shortfall. These additions in 100 MW blocks are used to estimate the amount of resources generally needed within a given zone to bring the system back within the reliability criteria. The compensatory megawatt additions are not intended to represent specific solutions, as the impact of specific solutions can depend on the type of the solution and its location on the grid. Resource needs could potentially be met by combinations of solutions including
generation, transmission, energy efficiency, and demand response measures.
A generic addition of at least 200 MW by 2023 anywhere within the G, H, I, or J zones (Lower Hudson Valley) would resolve the deficiency through the five-year horizon. To address the deficiency through 2027, the level of required additional resources would range from 400 MW to 600 MW depending on type and location of the resource(s) within the Lower Hudson Valley. Due to transmission constraints into the Lower Hudson Valley from upstate (Zones A-F) and Long Island (Zone K), additional resources in any other zone would not effectively resolve the deficiency. The results of the compensatory megawatt analysis are presented.
Transmission security violations were also identified within the Lower Hudson Valley for this scenario, but the resource adequacy deficiency exceeds the transmission security deficiency. Perfect capacity is capacity that is not derated (e.g., due to ambient temperature or unit unavailability) and not tested for transmission security or interface impacts. Actual resources may need to be larger in order to achieve the same impact as perfect-capacity resources. These deficiencies would increase with any additional future deactivations within the Lower Hudson Valley. These scenario results demonstrate that, without the expected new generation facilities currently under construction, additional replacement sources of power would be necessary to maintain reliability following deactivation of IPEC.
Conclusions
This assessment does not identify a Generator Deactivation Reliability Need following the deactivation of the Indian Point Energy Center for the Study Period under base case assumptions. This assessment also determined that following the deactivation of Indian Point Energy Center, the reliability of the existing system could only be maintained if sufficient replacement sources of power are added within the Lower Hudson Valley (Zones G-J). In the absence of the expected new generation facilities currently under construction, resource needs, as detailed in Table 1 of this report, would need to be met by one or more types of solutions including generation, transmission, energy efficiency, and demand response measures.
Entergy has satisfied the applicable requirements under the NYISO’s Generator Deactivation Process to retire the Generators on or after its requested deactivation date.This concludes the Generator Deactivation Process. The 2018 Reliability Needs Assessment will further evaluate the reliability of the New York Control Area through 2028 using the most up to date information at the time, in accordance with the applicable tariffs and procedures.
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