Recommended where there are frequent power failure & usages are at night time
Stand-alone systems, which are also called off-grid systems, rely on solar power only. These systems can consist of the PV module and a load only or they can include batteries for energy storage. When using batteries charge controllers from the PV modules when they are fully charged, and may disconnect the load to prevent the batteries from being discharged below a certain limit. The batteries must have enough capacity to store the energy produced during day to be used at night and during periods of poor weather.
- Texas processor technology with Solar-Utility & battery mode.
- Its sync & sha re the energy with solar, Grid & Battery & reduces the entire energy bill.
- Modular technology can be upscale in future.
- LCD & 485 features for Remote monitoring of all the parameters This kind of a system will allow a customer to go off the grid
- However, these are the most expensive type as additional battery cost is incurred to provide a backup of up to 48 hours for a normal household or business functioning (including autonomy for a 1-2 rainy days)
- This is the most common installation type for areas that have no grid connection but are not very useful for urban areas.
- These systems are usually sized to not include air conditioning, as it is only a seasonal load. A larger system installed to meet peak summer demand will lead to wastage of power in the winters, making it un-economical
- Savings from the system lead to a payback period of up to 10 years. After that, you get free power for 10 more years