I see a string on this topic but it hasn't been updated for the 2023 version of ITC. I am considering an installation on my primary residence in 2023. For me, the payback period is extremely important. I am considering two options. One is a 10KWH/yr system and the other is a 15KWH per year system. Can I install a 10K system in 2023, and take the 30% tax credit and the expand it to 15K in 2025 and take the 30% credit on the 5K expansion?
