S1. Enphase Corporate Social Responsibility (CSR) initiatives United States GRID Alternatives We have been partnering with GRID Alternatives, a national non-pro昀椀t leader, since 2012. GRID’s mission is to build community-powered solutions to advance economic and environmental justice through renewable energy. GRID works towards this mission by handling solar installations and providing job training in low-income communities. Through the partnership, we donate our industry-leading microinverters, batteries, and EV chargers for GRID projects. 42 MW Over the lifetime of our partnership, GRID has installed more than 10,300 solar energy systems using Enphase products in in low-income communities across the United States, solar installed which equates to more than 42 megawatts of solar power. These homes are expected to see an estimated lifetime savings of more than $295 million, helping to prevent more than 705,200 tons of greenhouse gas emissions from entering the atmosphere. In addition, 10,300 Enphase employees have volunteered thousands of on-job working hours over the families served past decade, which led to the installation of solar on dozens of low-income homes and community buildings. This work has also provided job trainees and volunteers with more $295 million than 592,000 hours of solar education and training. expected lifetime savings 705,200 tons of GHG emissions avoided ENVIRONMENTENVIRONMENTAL, SOCIAL, AND GOVERNANCE REPORT 2023AL, SOCIAL, AND GOVERNANCE REPORT 2023 5959