Your all-in-one design We continued to enhance our digital platform for installers In 2019, Enphase embarked on a mission to develop a comprehensive digital and proposal tool platform for installers, encompassing tools for designing, permitting, installing, monitoring, and maintaining solar and battery systems. Over the course of four years, we meticulously crafted a robust suite of tools and services on our digital platform, with the overarching goal of streamlining the sales process, reducing soft costs, and delivering an unparalleled experience to installers worldwide. “Over the course of four years, ® We rolled out numerous enhancements to the Solargraf software platform for we have meticulously crafted a design, proposal, and permits throughout 2023. These updates included smart robust suite of tools and services panel placement, battery design, document management, electrical design, on our digital platform, with the and single line diagram features, alongside continued support for NEM 3.0 overarching goal of streamlining functionality in California. NEM 3.0 incentivizes homeowners to embrace solar the sales process, reducing and battery systems to avoid energy imports during peak-rate periods while soft costs, and delivering an compensating for energy export during the times when the grid is stressed. The unparalleled experience to Solargraf software simplies NEM 3.0 proposals for installers by making solar installers worldwide.” and battery design easy, optimizing electricity bill osets and payback. Solargraf is currently accessible to installers in the United States, Canada, Germany, Austria, and Brazil, with plans for expansion into additional markets including the Netherlands, France, Australia, and several other countries in 2024. Solargraf - Design, proposal and permitting software 18 ENPHASE CEO LETTER TO SHAREHOLDERS 2023 19