Off-grid makes sense if you don’t currently have a connection to the grid. Bringing in a new service can be expensive, especially in cottage country or any rural areas. We have seen Hydro One charge prices of $70,000 to $200,000 to install new services. In this case it makes a lot of sense. We can build a real nice off-grid system for well less than those numbers.
If you have a connection to the grid and you want to generate your own power then net-metering is a much better choice.