The total cost of the installation will vary based on how much battery capacity you need as well as whether you already have solar panels installed. As far as the individual components go, the Enpower smart switch sells for about $3,600, the Encharge 3 is about $7,000, the Encharge 10 is about $11,000, and the Envoy combiner box is about $1,800. However, if you do not already have solar panels, you may be looking at another $10,000-$15,000. On top of that, if you hire a professional to install your system, you will need to pay labor and installation costs, which can vary greatly depending on your system size and the installation site. The best way to find out how much the entire installation will cost is to sign-up for a free consultation with an experienced consultant.