New August promo shown on their website:
http://ellisislandcasino.com/promotions/
Once this month on Sundays and Wednesdays get free play based on the amount of your power bill.
I read the complete rules at the casino and found this:
$5-$49 bill = $5 free play
$50-$99 = $10
$100-$149 = $15
$150-$199 = $20
$200+ = $25
Must be a July or August bill and the name on the bill must match name on players card or ID.