Energy efficient window tax break for payments across 2 years

I'm confused on how I apply the energy efficient window tax break for payments across 2 years.

I have put a purchase/order in for all new home energy efficient windows in October and paid a down payment of $10k by check, but the windows will not be in and ready to be installed until next year, after which I will pay the remaining $10k.  With the new Inflation Reduction Act legislation, does that mean I can claim the credit for 2022 (by applying the first $10k) and 2023 (by applying the second $10k) since they are in separate years (I'm really hoping yes because man, windows are expensive and $600 is barely a drop in the bucket of cost)?

Also, how do I know if my windows qualify as "energy efficient?"  They are low e glass and have other features for efficiency I wasn't sure if they had to be a certain level.