Hybrids are a bit easier to design than Off-Grid because they generally involve being connected to the mains and staying connected to the mains and using a battery bank to provide all your power using the mains as backup or a needs basis if you need to pull huge amperage from the grid periodically. Being connected to the grid helps this periodic big draw by allowing the grid to provide that rather than having a build a huge battery system to cater for a short term big load, which can be costly just to need it every now add then. Hybrid allows you to build for your daily power needs knowing you have a line backup. Hybrids follow the general rule of if you have the mains connected don’t disconnect it to get solar. Disconnecting from a basically unlimited load source is a mistake, in our opinion and adds costs to your solar system initial costs which again paves way for naysayers to rebuke the benefits of solar. Solar can be great and is the future for our world, much more than Nuclear, which if accidents happen ruins the planet for 100,000 years in the future. I believe we are fairly conceited to assume we have the right in this century to risk the planet for thousands of centuries to come. Go solar, wind, hydro, Geo-thermal and there is no need for nuclear, ever.
We favour Hybrid systems and think they are the future at least for the next hundred years. We need the grid and need to work with the grid not against it.
Backup power-
Peace of mind in a grid failure is the primary focus of these systems. Generally, these systems in essence are smaller off-grid systems designed to provide just a few hours of power each day to maintain essential services through a grid failure. Most solar systems could incorporate some form of emergency backup post installation however; if this is a concern for you and you experience frequent “power disruptions” it would be advisable to raise this with your solar system provider if possible before installation of your solar system. The most economical solution for emergency power of a few hours during the odd grid failure is to incorporate a “change over switch” into your distribution board and purchase a small generator to plug into your distribution board.