My return is calculating $0 for my electric vehicle charging station, I should qualify as far as I can tell.

I spent about $3000 on an EV charge station for my new EV. Form 8911 says I should be entitled to up to $1000 tax credits (30% of $3000 would be $900 for me), but TurboTax says it's $0. Am I doing something wrong? It did properly give me my $7500 credit for the EV itself.

Thanks!