When we did ours few years back the company we went with did paperwork, just remember not to start work until it is approved.
Westside did ours they were very helpful.
You might want to contact Manitoba Hydro they have a list of registered qualified companies to assist you.
Some of your questions might be answered on this link:
https://www.hydro.mb.ca/your_home/residential_loan/ Edited by Mac72, 2021-05-10 11:45:31