Have to say I'm not sure because I don't know your Technical College enough, sorry. I still took a look over Wikipedia and for me seems that it isn't the same thing.
Over here you can study separate parts of university studies in open university. The differences between open university and university are that you can't take whole the degree in open university, there's no entrance tests or demands as to your previous schooling there (in university have to be either upper secondary school or vocational school) and you have to pay a tuition fee (needn't to pay in university). Open university is often a way to get into university or supplement your already done degree. The length of the course depends on it what kind of part of the studies you're taking.
That works with also university of applied sciences. Actually university and university of a.s are different schools tho the English expression is perhaps a bit misleading. I think university of applied sciences could perhaps correlate with your Techincal College but you can check it yourself if you want to: Ammattikorkeakoulu - Wikipedia, the free encyclopedia
Yeah, president of Finland sounds like a interesting career choice
. It's still not worth of all that politics and living in our capital city which is btw very ugly (Just my humble opinion).