Adding battery storage to your solar panel system can provide further reductions in your electricity costs.
Additionally, if you generate more energy than you can use or store, you can sell the surplus back to the grid. Moreover, battery storage systems ensure that your home remains powered during power outages, allowing your solar panels to function normally.
Incorporating a solar battery storage system into your existing solar installation can help you maximize the energy you produce. You can monitor, optimize, and manage your electricity usage effectively with your PV system.
Solar Power, Day or Night
Solar panels do not work at night, but battery storage enables you to use solar energy at any time. During the day, your solar panels may generate more power than you need. With solar battery storage, you can store the excess energy for later use, even when the panels are no longer providing power, helping you avoid using power from the grid.
What is the battery's usable capacity?
The usable capacity refers to the amount of energy in kWh, or units, that the battery can store.
However, it is crucial to note that batteries should never be completely drained as this can damage the cells. The usable capacity is the key figure to consider when researching batteries, even though some brands may quote a "total" capacity that is misleading.
What is a cycle?
A cycle is one complete discharge and one full charge of the battery, although the battery may only discharge 25% and then recharge 25%, accounting for a quarter of a cycle. When it comes to the battery's warranty, you need to know how many cycles it is warranted for, enabling you to calculate the number of kWhs or units of electricity the battery will deliver over its warranted lifespan.
What capacity should I look for in a solar battery?
The capacity size you should look for depends on your individual requirements. If you plan on installing EV chargers, you'll need a larger battery, while a larger battery capacity will enable more charging at a cheaper rate and a greater quantity of power to sell back to the grid for grid trading purposes. For those who install energy storage for sustainable reasons, the capacity requirements may differ.
AC Coupling vs. DC Coupling
When you purchase a solar battery, you have the option of AC coupling or DC coupling, each with its own pros and cons.
AC coupled systems require separate inverters for the battery and panels, allowing for flexibility in terms of location and optimizing the position of your equipment. However, they can be more expensive and up to 3% less efficient in power transfer than DC.
On the other hand, DC coupled battery and panels share the same inverter, providing a more efficient power transfer and could be cheaper overall. However, a fault in the inverter could render the battery useless, and there is less flexibility in where these battery units can be installed.
Contact us to discuss your requirements, and we'll be happy to advise you on the available options.