Much like your investment in solar PV panels, the overall return on investment for solar back-up batteries far outweighs the initial cost. Although solar PV most definitely save owners in energy costs when the power grid is up and the sun is shining, unpredictable power outages and natural disasters will cause your solar PV system to disconnect without a battery back up. This leaves unused solar energy sitting on the roof – unable to be sold back to utility companies or converted into power during an outage. Solar back-up batteries offer protection against outages, increase your savings and give you more independence from utility companies.
With tiered rates under the current net-metering system, there are ideal times to sell back solar produced energy to the utility companies. Backup batteries and bi directional inverters give you the freedom and flexibility of when to sell or buy power from the utility grid. There is also technology available to alert you when to utilize your battery back up for optimal savings.
How It Works
The majority of existing solar PV systems do not protect you against power outages, or increased utility grid rates. Fortunately, the upgrade to a battery backup system called AC coupling will give you security when the grid is down, and savings when utility rates fluctuate.
The AC coupling is a hybrid-type system that ties your energy storage system to the existing grid-interactive one. Throughout the day, the solar energy powers a home or building while simultaneously charging the backup battery. During a power outage, the bi directional inverter will convert the stored energy from your backup battery to your home to keep things running smoothly.
Grid stability has already declined with the rise in renewable energy and distributed energy generation. Battery backups systems are the solution to the imbalance in power swings. The good news is nearly every home or business with a grid-tied solar PV panels is eligible for a battery backup system upgrade.
With increased grid imbalances, federal and state tax incentives, and affordable financing options available, now is a great time to upgrade or install solar PV panel systems with backup batteries.