Exhibit 99.1 Sunrun Reports First Quarter 2024 Financial Results Exceeded high-end of Q1 guidance range for both Storage and Solar installations Storage Capacity Installed of 207 Megawatt hours in Q1, representing 192% year-over-year growth, as storage attachment rates reach 50% Solar Energy Capacity Installed of 177 Megawatts in Q1, reaching 6.9 Gigawatts of Networked Solar Energy Capacity Net Earning Assets increases to $5.2 billion, including $783 million in Total Cash Reiterating Cash Generation guidanc ...