Agenda - Council - 11/28/2017 - Laserfiche WebLink

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Decommissioning Plan Anoka County Solar Facility, City of Ramsey, Minnesota AC collection system. The system will be designed to minimize cable routing and trenching thereby ensuring minimal electrical losses. The final output from the SGF will be processed through a step-up transformer to match the interconnection voltage and to comply with utility interconnection requirements. Electrical safety and protection systems will be provided to meet utility and regulatory codes and standards. The energy will be delivered to the Connexus Energy electrical distribution network. A security perimeter fence with appropriate signage for public protection will be installed. Points of ingress/egress will be accessed by locked gates for facility services and maintenance. Additional information on specific elements of the SGF is provided in the following sections. PV MODULES The SGF will require installation of approximately 14,000 PV modules. Any unanticipated adjustment to this number will depend upon the final selected technology decided after an optimization evaluation and detailed design. The evaluation, design, and selected technology will take into account market conditions, economic considerations, and environmental factors. The current design for the SGF proposes to use PV crystalline silicon technology, in the form of 72 solar cell panels rated to produce between 315 watts per panel. The modules will be installed at a 25-degree angle in a fixed -tilt configuration facing south. STANDARD INSTALLATION, ARRAY ASSEMBLY, AND RACKING There are various solar module mounting systems that can be mounted on several different types of foundations. The SGF will use a fixed -tilt mounting system. The module mounting system provides the structure that supports the PV module arrays. The foundations are typically beam piles, which are driven into the soil using pneumatic techniques, similar to hydraulic pile driving. The final foundation design will be determined based on the geotechnical survey for the SGF location. Once the foundation has been installed, the module mounting system will be installed to support the PV modules. For the fixed -tilt configuration, a rigged structure will be installed and design to support wind and snow loads, as well as meet local design criteria. The PV modules will be delivered to the SGF site during construction to support the installation schedule. The module mounting system will orient the PV panels in rows, reflecting a standard and uniform appearance across the facility. The panel configuration will be uniform in height and width. Page 13