In Minneapolis and St. Paul, operators of district energy systems are embarking on ambitious plans to decarbonize their heating and cooling infrastructure. These systems, often linked to fossil fuel facilities, are now being repowered with clean energy sources in response to climate pledges from institutional customers. Cordia Energy in Minneapolis is transitioning from natural gas to electric boilers and exploring geothermal options to reduce emissions by 30% by 2030 and achieve net-zero by 2050. Similarly, St. Paul is seeking to recover heat from a wastewater treatment plant to enhance its district heating system, aiming to provide 92% of energy from carbon-free sources by 2028. These initiatives mark significant progress in reducing greenhouse gas emissions from urban buildings, aligning with broader sustainability goals and showcasing innovative solutions for urban energy infrastructure.