In a couple of years residents in South Australia will have to pay to export solar power to the grid. Likewise, it's already possible for the electricity distributor to remotely turn off you solar inverter if excess solar is being generated in your area.
If n similar companies close and let all employees go, IMO that generally shows that a problem exists. One company shutting down is something happens, two similar ones at the same time is a coincidence, many... generally shows a problem.
Unless, of course, they were closed on purpose (prohibiting alcohol is no good for breweries) or because some resource ran out (mines close when the ore is mined).
In this case, I find it a little difficult to believe that a largely export-oriented R&D-intense industry closed because of transmission and regulation problems in the home country. Possible, needs supporting argument.