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14
City of Pleasanton
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2009
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081809
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8/13/2009 1:04:21 PM
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CITY CLERK
CITY CLERK - TYPE
STAFF REPORTS
DOCUMENT DATE
8/18/2009
DESTRUCT DATE
15 Y
DOCUMENT NO
14
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BACKGROUND <br /> The City Council's current set of priorities include installation of a photovoltaic (PV) <br /> project on a City facility. To that end, staff has been exploring the potential of a PV <br /> project that provides the largest overall energy benefit within a reasonable cost. In April <br /> of this year, staff presented the City Council with a number of PV options and <br /> recommended that it pursue a PV system at the OSC. The specific energy target was <br /> to offset the cost of operating water Well #8 and a portion of power usage at the OSC <br /> maintenance buildings. The City Council adopted this recommendation and staff has <br /> completed the vendor selection process. <br /> As indicated at the April meeting, one of the primary decisions regarding a PV system <br /> involves determining whether the City should own the system outright or whether it <br /> should enter into a Purchase Power Agreement (PPA) whereby another entity would <br /> own the PV system installed at the OSC. Outright ownership requires a significant initial <br /> capital investment with larger energy cost savings over time while a PPA minimizes the <br /> initial investment but results in less energy cost savings. At the meeting staff indicated <br /> that both of these alternatives were acceptable and that the final decision would be <br /> based largely on the cost of acquiring the system. In general, staff estimated that the PV <br /> system would cost approximately $2.5 million and that if bids exceeded this amount, a <br /> PPA would be preferable. If bids were less then this amount, ownership would be <br /> preferable. <br /> As proposed by Cupertino Electric, the systems will be comprised of 1,568 solar panels <br /> located on the roofs of the OSC buildings. Cupertino Electric will be responsible for all <br /> installation including connection to the existing electrical system. The City will assume <br /> all system maintenance following an initial system warranty period. However the <br /> system installer is required to warranty the system for ten years under the CSI rebate <br /> system in California to cover all workmanship and defects during this period, the panel <br /> manufacturer also warrants the panel for twenty five years. Routine maintenance is <br /> generally minimal involving bi- annual cleaning of the solar panels. <br /> Cupertino Electric Inc., is local Bay Area firm headquartered in San Jose, CA. that has <br /> been in business for 54 years and is a well known electrical design and installation <br /> contractor. Cupertino Electric also has substantial experience installing solar systems <br /> such as the1.6MW system at Google's headquarters and PG &E's San Francisco <br /> Service Center, just to name a few. <br /> DISCUSSION <br /> As a result of the favorable bids received staff is recommending outright ownership of <br /> the system. This recommendation is based on the City's return on investment over the <br /> life of the system and the fact that ownership provides the City with the greatest <br /> flexibility in terms of assuring ongoing long term reliability and operations. The bid that <br /> was received from Cupertino Electric, Inc. for the project totals $1,678,000 which <br /> represents the design, purchase and installation for the combined system for Well 8 and <br /> the Operations Service Center. This bid is $855,000 less than the original estimate that <br /> was included in the Council report from April 2009. The main reason for the cost <br /> Page 2 of 3 <br />
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