We did it in the pandemics. We started on April 2020, and Monday we are getting an electrician here to connect our solar panel array to the main network (Germany). Me and my wife learned a lot, we fought a lot, but was such fun. I value much more now the people that do that as daily job. Not everything looks perfect, and in our opinion it was definitely more expensive than paying someone to do it. If in one hand you can ave labor costs, in the other you spend quite often more money in more material (buy more then necessary, buy stuff that you dont need and etc). Have fun!