I really hope these become legal in Canada.
Right now it seems Utah is the only jurisdiction in North America where they are
Right now it seems Utah is the only jurisdiction in North America where they are
Where I live, in the US, National Grid is okay with balcony solar as long as it's a zero-export balcony solar. Your power utility may take a similar approach. They might also take a "if it doesn't cross the meter, and we can't tell what you're doing, then we can't tell you not to do it"
Further, the utility's safety concerns do not require any shut off on the mains. Their safty concern is not a new backflow of current; but a backflow of current into an otherwise non-energized grid. Grid-tied inverters will not do this. If the grid goes down, they shut themselves down without any need for an upstream shutoff.
The utility's may have a reasonable business object to back-flow if their meters are such that backflow forces net-metering. Around here, that is a non-issue because net-metering is the law for residential connections anyway. Even in juristictions where net-metering is not the law, I don't find this convincing. The limited capacity of balcony solar means that it won't actually happen in any significant amount, and if it does become a problem, they can shoulder the cost of upgrading their metering equipment.
Net metering is common, but not everywhere and frequently there's a pricing differential between what you buy and what you sell. My mother leased her solar panels from SolarCity/Tesla. She buys electricity at $0.12 a kilowatt hour, but sells at $.09/kwh. Some of the regulatory shenanigans I've seen regarding balcony solar include no net metering. If you produce excess power, you get no credit for it.
https://www.canarymedia.com/articles/solar/virginia-to-becom...