You can have an electrician install a system and setup an agreement with an electric company to back feed and be credited. But you cannot just plug something into the wall that backfeeds. Most places in the US that’s illegal. And that’s why it makes less economic sense here. The system will already pay back at a much slower pace because of our lower energy costs. And the increased minimum cost to install makes it much less desirable. It’s not just a regulation problem either. Our outlets aren’t particularly safe for a backfeeding setup.

Here smaller setups require a battery and again, that increases the cost. You mostly only see larger whole home rooftop installs because of this.