FROM: Robert Thompson, General Manager
Originator: Mike Dorman, Director of Engineering
SUBJECT:
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CENGEN AND 12KV SERVICE CENTER SWITCHGEAR BATTERY SYSTEM UPGRADES AT PLANT NO. 1, PROJECT NO. FR1-0005
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GENERAL MANAGER'S RECOMMENDATION
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RECOMMENDATION: Recommend to the Board of Directors to:
A. Receive and file Bid Tabulation and Recommendation for Cengen and 12kV Service Center Switchgear Battery System Upgrades at Plant No. 1, Project No. FR1-0005;
B. Award a Construction Contract to Mass Electric Construction Co. for Cengen and 12kV Service Center Switchgear Battery System Upgrades at Plant No.1, Project No. FR1-0005, for a total amount not to exceed $970,000; and
C. Approve a contingency of $97,000 (10%).
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BACKGROUND
The battery systems at the Central Generation (CenGen) Building and the 12kV Service Center at Orange County Sanitation District (OC San) Plant No. 1 provide low voltage power to the protection and monitoring devices located in the switchgears in these two buildings. The switchgear in these buildings distribute 12kV power throughout Plant No. 1 and are critical to the plant operation.
RELEVANT STANDARDS
* Comply with California Public Contract Code Section 20103.8, award construction contract to lowest responsive, responsible bidder
* Commitment to safety & reducing risk in all operations
PROBLEM
The batteries are over 30 years old and are at the end of their useful life. The battery chargers at both locations are obsolete.
PROPOSED SOLUTION
Award a construction contract for CenGen and 12kV Service Center Switchgear Battery System Upgrades at Plant No.1, Project No. FR1-0005. This project will replace the two existing battery banks at Cengen and replace the single battery bank at the 12kV Service Center with two battery banks, to provide battery system redundancy.
TIMING CONCERNS
The battery systems are at risk of failing due to aging and signs of corrosion. .
RAMIFICAT...
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