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Investor Presentaiton

Operational excellence Customer experience Laser focus on quality and customer service Gross margin management Product innovation, maximizing value, multi-sourcing Quality 8x1 Better than M-series 500 dppm Reliability target for microinverters Price Value Based Pricing Performance and quality Product Segmentation IQ8+ TM, IQ8M™, IQ8A™, IQ8HTM Customer service 78%² <1 min Worldwide NPS Wait time target 18X refers to actual failure rate results of IQ 7TM and M215 TM microinverters as of March 31, 2024 ENPHASE 2 NPS refers to Net Promoter Score as of March 31, 2024 Cost Product Innovation ASIC, software designed system Supply Chain Optimization Tariff, procurement and CM 2024 Enphase Energy, Inc. 9

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