Erik007

My name is Erik and I am from Norway, and I am currently locked in a grammar dispute with a mate of mine regarding a very infamous punctuation--the semicolon. Having questioned numerous native English speakers about it, I still stand without a proper answer and my integrity is in tatters. As a result, I have come here to seek enlightenment. My mate wrote the following sentence: "From the results we found that the lowest levelized cost of energy was achieved by dividing the transportation sector in to three technologies; 50% electric, 30% hydrogen and 20% methanol." For the sake of argument, please disregard the sentence's other grammatical errors. The main question is: is the usage of that semicolon correct, or should a colon take its place instead? Thank you for your assistance!