Sustainability and Energy Action Plan

APPENDIX IV: METHODOLOGY GRANTS PASS SUSTAINABILITY AND ENERGY ACTION PLAN PROJECT IMPACTS (continued) BE-6-1, BE -6-2, BE -6-3: Two brownfield solar panel projects are assumed to be operational on the Foothill Landfill starting in 2030 and Merlin Landfill starting in 2035. The Foothill Landfill project is assumed to produce 3,453 megawatt -hours of electricity annually, and the Merlin Landfill project is assumed to produce 2,244 megawatt -hours of electricity annually. An additional solar field at one of the water restoration pump stations producing 363 megawatt - hours is also assumed to be operational by 2035. The annual cost of operations is assumed to average $0.035 per kilowatt hour over 20 years of operation, largely due to panel cleaning and inverter replacement. The production from these facilities is assumed to offset average utility grid costs of $0.09 per kilowatt hour adjusted for inflation over the period of the Plan, and to offset greenhouse gas emissions that would otherwise occur from utility grid produced electricity in each milestone period. BE-2-3: The solar panels at the Police Department headquarters are assumed to be expanded to include the remaining space on the current overhead enclosure, the suitable area of the building roof, and on new overhead structures covering the parking lot. The total annual production of the expanded solar generation at the facility is calculated to be 275,000 kilowatt hours and would be completed by 2030. The cost of operation is assumed to average $0.035 per kilowatt hour, the same as the brownfield solar facilities. NS-1: Carbon sequestration from the city’s portion of the urban forest was projected to have a modest increase over the milestone years due to net addition of trees and increased maturity of existing young trees. 2030: 2% 2035: 3% 2040: 4% 2045: 5% ADDITIONAL PROJECT SCENARIOS BE-6-5: Two additional project scenarios were not part of the basic Plan goal calculations but are mentioned in the Plan. The assumptions associated with these scenarios are described here. The first additional scenario assumes the Merlin brownfield solar field is expanded to fill all the available 300 acres with solar panels. According to HelioScope results, this would result in the generation of 12,185 megawatt hours of electricity per year starting in 2035 instead of 2,244 megawatt hours (the previous limit being based on the current capacity of the relevant substation to accept power). The second scenario expands the Police Department solar panels to also include available space in other nearby City -owned property, including the City parking lot across from City Hall as well as south facing rooftop area on City Hall itself. The HelioScope study shows that this could generate 953,194 kilowatt hours annually instead of 275,000 kilowatt hours per year. This scenario is labeled “Civic Center Solar”. 142 Helioscope is a software platform for modeling solar arrays using CAD -caliber layouts, remote shade analysis and energy yield calculations.