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16
City of Pleasanton
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CITY CLERK
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2009
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040709
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16
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4/1/2009 2:51:58 PM
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4/1/2009 12:38:46 PM
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CITY CLERK
CITY CLERK - TYPE
STAFF REPORTS
DOCUMENT DATE
4/7/2009
DESTRUCT DATE
15 Y
DOCUMENT NO
16
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BACKGROUND <br />In 2008, City staff began researching potential solar installations for City buildings to <br />support a City Council work plan priority, to respond to AB 32 requirements to reduce <br />carbon levels by 2020, and to identify long term cost saving alternatives. After <br />conducting an initial preliminary site evaluation, the City hired Energy Solutions to <br />conduct feasibility and funding study. <br />As a basis for the feasibility analysis, staff and the consultant looked at the following <br />factors: <br />1. Facility structural analysis, shading, existing electrical efficiency and design. <br />2. Design options including components, mounting, orientation, sizing and generation <br />of the system compared to electrical use. <br />3. Project costs including capital costs, permitting, operations & maintenance and tax <br />incentives. <br />4. Funding options including state and federal incentives, utility net metering credits, <br />and renewable energy credits available to the project. <br />5. Equipment ownership and use options including leasing, power purchase <br />agreement (PPA), and outright purchase. <br />After looking at a total of seven facilities, staff and the consultant identified the <br />installation of solar systems at OSC as the most feasible option. This selection is based <br />on the following conclusions: <br />Considering the cost of the amount of electrical power required annually for Well #8, <br />a 55% reduction in purchased electricity will yield considerable ongoing electrical <br />costs savings over the life span of the equipment. In general, for the entire project, it <br />is estimated that the City will realize a reduction in annual electric costs of <br />approximately $151,000 and a total reduction of $3,775,000 over the 25-year life of <br />the panels. <br />The facilities are positioned well to take advantage of sunlight. <br />The facility's structural design can accommodate the PV panels and related <br />equipment without costly retrofitting. <br />If the Council approves staff recommendation, this project will be added to the City's <br />Capital Improvement Program (CIP) so that it can be tracked and funded, as a capital <br />expenditure. <br />Page 2 of 3 <br />
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