Reactor Decommissioning History
Zion 1 (and Unit 2)
revised 2010-02-20

Overview

Zion 1 & 2 (ZNPS) are Westinghouse commercial PWR power reactors. Unit 1 (DPR-39) & Unit 2 (DPR-48) each had a generating capacity of 1085 MWe and design capacity of 3250 MWt. Commercial operations were achieved for Unit-1 on December 1973 and for Unit-2 on September 1974. Final reactor operation for Unit-1 was February 21, 1997 and Unit-2 was September 19, 1996. Both units are in SAFSTOR (or Delayed-DECON).

Reactor decommissioning activities had been anticipated to start 2013 for Unit-1 and 2015 for Unit-2, but we expect that schedule to be updated. The NRC web page is estimating closure in 2018 but final site survey in 2026.

Reactor Decommissioning Specifics

Internals Removal
Underwater segmentation planned.

Reactor Vessel Removal
Segment the RV and head. Current plan is to segment the vessel dry.

Segmentation and Packaging Plan (S&P Plan)
Plan unknown.

Key People

Contractors
TLG Services (for D&D cost estimating in 1999).
Zion Solutions.

Comments
Energy Solutions formed "Zion Solutions" (ZS) for the D&D. As of February 2010, site is hoping to resolve funding issues and begin site work mid 2010.

Related Publications and Documents
Unknown.

References
The NRC's web page as of 8/24/06 & 2/22/10.
INSC web page as of 8/22/05.
Exelon Nuclear Operations Communications Department on 8/25/06.
Commonwealth Edison's PSDAR to the NRC dated February 14, 2000, revision 0.
Conversations with site people Feb 2010.

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