I believe even the tent sights have electric.
Not sure about tent sites but all RV sites have full hook ups. I don't think there is a bad site in the Park.
Almost all the sites have electric. We carried a an extension chord, just in case, but it wasn't required in our camp site. Check which sites have a chance of waterlogging before booking. It rained when we were there and my friend's campsite was full of water. He had to find a hotel at 1 am.
Their sites have electric, water and sewer if I remember correctly. They have a website with all the information.
Pretty sure they had electric on most sites
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