what do we do with our 1099 forms when we file electric

Keep them with your tax file. 

The IRS gets a copy of their own, they don't need a copy of yours. 

You save them in a labeled 2020 tax folder, and save with all your other tax documents....and a print-out of your 2020 tax forms.

...... the IRS or the State tax department may ask for copies of them at any time in the next 3-to7 (or so) years IF...if they decide to check on what you entered on your tax forms.....or if they randomly decide to audit you.