Integrating solar battery backup to your photovoltaic (PV) system can be a tough decision. To help you in this process, we have discussed the features of for each type of PV system.

Grid-tie with solar battery backup

The benefit is that you can provide power to server, refrigerator, or other designated appliances. This system also stores energy that can be used during an outage. By sending excessive energy to the power grid, one can get credits. It is complex, requires maintenance, and can increase overall costs.

Grid-tie without batteries

The maintenance is less in this simple and cost-effective system. The energy is stored through the process of “Net Metering.” The user can get refunds and credits by sending excess energy into the utility-provided power grid. The drawback is that there is no backup during an outage.

Off Grid/Stand Alone

This system works with hydro or wind-powered renewable energy generators. There is no dependency on utility. This system is costly, complex, and requires maintenance.

PV Direct

This simple system connects directly to the pump or motor. Though there is low maintenance, it has limited usage.

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