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Electric Boat Costs 40–50€ to Cross Baltic Sea, vs 750€ Refueling Gas Boat
(cleantechnica.com)
This is a most excellent place for technology news and articles.
I like the idea of this match, but I'm cautious about the article. All they say about the gas-powered boat is that it's a similar size; they don't mention the actual type of boat the chase boat was, and I didn't see it in a brief skim of the video. I suspect that a notable percentage of the electric boat's efficiency is due to its being a hydrofoil. If the gas boat is the standard hull-in-the-water, it would naturally be less efficient.