Prepare for the Unknowns
Select The Right System for You
What are the differences between grid-tied, back-up, and off-grid battery systems you ask?
- Works while the electric utility grid is operational.
- All the energy produced by the solar system is used onsite first. Excess energy is sent to the grid and credited on your monthly utility bill.
- During a power outage, solar panels shut down to protect electric utility line workers.
- System design is simplified and based on monthly energy use.
Back-up System ($$)
- A growing number of our clients are opting for some energy storage for increased security and independence.
- Supports limited functions and energy usage from the stored energy when there is a power outage.
- Can be a small, medium, or large backup system based on your needs.
- The energy storage can be charged from the grid, solar, or both.
- Solar panels continue to operate while the electric utility grid is down.
- System design is more complex and based on the desired protected loads, their electrical characteristics, frequency of use, and the number of days of autonomy desired.
- No reliance on the grid but the grid can be utilized if it is present.
- Supports full functionality independent of grid conditions.
- System design is complex. Inverter and battery capacity design is critical and typically includes a stand-by generator to charge the batteries to increase days of autonomy, security, and independence.