My two cents:
You are talking about caffeine here. Heavy caffeine. When I think of "energy" food or drink, I usually think of things that replenish lost nutrients or electrolytes, etc. High caffeine cola drink manufacturers like to market their stuff as energy boosters. They are making big bucks on these drinks because the ingredients cost them next to nothing, as opposed to drinks with real nutritional content.

Coffee helps wake me up in the morning, it gives me a jump start on being alert. But I don't think of it as giving me "energy", and of course too much caffeine is no good and can give you heart palpitations, make you jittery and shaky, interfere with concentration, and prevent sound sleep even many hours later. I also personally like to avoid artificial sweeteners.

So, though I love my coffee in the morning, I certainly wouldn't drink it with the idea of giving me energy for biking.