Colossus, with his standard power set, does not possess any energy projection abilities, and his only known power is his mutation that allows him to transform his body into an organic metal substance. Transforming into and maintaining his metal form does involve a form of bio-energy, but he cannot project this as a form of attack, it simply exists within him like a kind of life force.
However, different story arcs in comics over the years have given him other abilities. Note that these are all former powers and he no longer possesses them:
- Juggernaut - During the "Fear Itself" event, Colossus offered himself to be Cyttorak's new Avatar for the powers of Juggernaut. As a result, he gained all the power of an Unstoppable Force... made of Osmium.
- Phoenix - During "Avengers vs. X-Men", Colossus was briefly an Avatar of Phoenix, along with 4 other Mutants. He still had the powers of Juggernaut at this time. As an Avatar of the Phoenix Force, he gained immense levels of power, including the ability to use the cosmic flames of the Phoenix. I'm not sure if that counts as energy projection, but the ability to manipulate cosmic flames that can burn in the vacuum of space has to be pretty close.
- War - In "Omega World", Colossus was revealed to be a Horseman of War. While he doesn't seem to have gained any energy projection abilities as a result of Apocalypse's influence, he was able to shift his organic metal body much like the more advanced Terminators in Terminator 2 & 3. This allowed him to extend and effectively project his organic metal body, which we already know is a form of bio-energy. Again, I don't think it really counts, but he is technically projecting bio-energy as a power, so I thought I'd list it anyway.
Other than this, there doesn't seem to be any suggestion that he could project energy in the same way that most magic users can. This is probably why the Marvel Database more correctly lists his Energy Projection rating as 1.