Our parking lot is in a field with no power. Last year we ran portable lights on tripods off of generators and it did ok, but we had to make more parking this year. The power company wants a monthly fee for lights to be on power polls and a ton to set them up. We thought about renting a light tower but we would have to rent it for the month and it got expensive! Any ideas that we are not thinking of that could work for cheap? We only use it 10 nights a year so I don't want to invest a ton of money into it.