[The Scientist (OP)]

Hi all. I'd like to ask: What is the difference in energy levels between the consumption of soft drinks and water? Do soft drinks provide more energy? Thanks!

[Nizzle]

The more sugar in your beverage, the more energy is in there.

[Bored chemist]

Water only provides water.
Some (low calorie) soft drinks provide little else but taste nicer.
A lot of soft drinks contain significant amounts of sugar which provides energy.
Whether or not that's a good thing depends on the rest of your diet and on what else you do.

[CliffordK]

Besides water, your body may need some salt and electrolytes after hard exertion which water provides very little of.  Soda some.  Gatorade and fitness drinks may be better with electrolyte replacement.  I don't know how big of a deal this is as most food also has some sodium and salts, but it may be important in a few cases of extremely hard exertion.

Calories is a measurement of "energy", as well as carbohydrates and sugars.  See the markings on your soda cans or bottles.

Many "energy drinks" also contain significant amounts of caffeine.  While caffeine isn't a major source of calories, it does make you feel like you have more energy, at least while you are on the "high", with often is followed by a "crash".