Energy Drink

I've been trying to get away from food additives. We eat mainly organic around the house, and prepared foods are limited to cereals, usually. But how do I replace Gatorade, now that I've gotten off my fat ass and started training again?

I searched the internet, modified a few things, and came up with this:

Energy Tea
1/4 teaspoon sea salt
2 tablespoons sugar
4 tablespoons lemon juice
2 green tea bags
1 liter of boiling water

Put it all together, throw it in the fridge, and its ready the next morning.