Question: Not only is this idea a complete departure from the energy technologies that currently exist commercially but it seems downright ominous
Please fix the punctuation.
Fixed: [Not only is this idea a complete departure from the energy technologies that currently exist commercially, but it seems downright ominous.]

Question: Your writing is interesting and I am not saying it because it addresses my personal issues
Please fix the punctuation.
Fixed: [Your writing is interesting and I am not saying it because it addresses my personal issues.]

Question: And here we too would like some response from experienced raftbuilders
Please fix the punctuation.
Fixed: [And here we too would like some response from experienced raft-builders.]

Question: Hi my name is GoldenPair and I am 20 years
Please fix the punctuation.
Fixed:
[Hi, my name is GoldenPair and I am 20 years.]