(Continued from Part 2. This concludes the article.) 6th Backup Option: A Permanent Mid-Size Solar System This system is advertised as an auto-transfer battery/inverter system that is designed for modular build, which provides the ability to add additional batteries and inverters as your system needs grow. It is a way to start with a solar backup and grow to a full power system in the future. [JWR Adds:  If you plan to eventually expand your system then choose modular, expandable components.  For example, select modular stacking inverters.] As with most systems, these systems are basically composed of a power generation … The post A Primer on Backup Power – Part 3, by R.H. appeared first on SurvivalBlog.com.