Sustainability Advisory Board Agenda and Packet 2023 07 19

Home Browse Search

Sustainability Advisory Board Minutes June 21, 2023 Page 4 of 6 monitors that? McKinstry: What is the utility providing for grid mix/emissions factor and why is that fluctuating? LSAB member: 4x the cost for hybridization and 5x the cost for full decarbonization. McKinstry: Discussed this discrepancy. LSAB member: Was geothermal considered? Rec Center was analyzed and retrofitted. Could be possible at the water treatment plant, and economics will affect this. LSAB member: How does the hybrid best practices impact this plan? McKinstry: Controls for commercial areas are more robust than residential and have more influence. LSAB member: What does pencil out mean in your definition? McKinstry: When payback gets out 30-40 years plus. LSAB member: Cost benefit analysis (CBA) of batteries and the impact of those changes. McKinstry: CBA is taken into consideration. Also, co -benefits are being considered in addition to health benefits as well. LSAB member: Are subcontractors and fleets of neighboring emissions (post offices, airports, fed ex etc) factored in? McKinstry: That is the scope for a community decarb plan, not within the scope of this internal decarb plan project. Kayla: This will provide the framework moving forward on our community plan. 30-40 municipalities are working together on regional electrification. LSAB member: Hybridization vs full decarbonization and will we get to full decarbonization? McKinstry: Hybrid is better at this time considering technology is improving, cost will become lower so let's move as far forward as we can. LSAB member: If gap to get to full decarb is 13 million, how can we get there? McKinstry: Batteries for Rec Center were looked at, but it was greater than 100 year payback. LSAB member: Can we place costs over a timeline showing today's costs vs projected costs? McKinstry: Predicting utility/Xcel costs is difficult. LSAB member: What about a solar farm installation? Can Louisville have them and/or floating solar? McKinstry: Floating solar will be included in the report for further investigation. Community solar has a lot of land use restrictions, 40% is for the municipality. Denver is trying community solar for the municipality but there are a lot of intersecting issues. LSAB member: Considering ground mount solar, what is that land designated for? McKinstry: Wastewater treatment plant is considering an expansion. LSAB member: What is the role or capacity of city lands to sequester carbon? LSAB