Solar Off-grid/standalone Systems
The terms used for this system are Solar off grid or standalone system. This system does not involve any contact with utility grid (Electricity supplied from Electricity board/company).
Components Include
Solar PV Panels, Solar off grid inverter/Power conditioning Unit(PCU), Batteries, Balance of system(BOS) – Wiring, Electrical protection devices, Earthing
How The System Works
Solar PV panels generate electricity when exposed to sunlight. This electricity is in the form of Direct current(DC). The off grid Solar inverter has an internal/external Charge controller which regulates the charging current that needs to go to batteries. The stored electricity in the batteries is then used by Solar inverter/PCU to convert to Alternating current and is used by the loads in the building. Usually utility grid electricity is not used by this system.
Note:
Electricity grid can be connected when battery charging is required during monsoon or night time. In this case Solar inverter/PCU will charge the batteries via grid or power the loads via grid as per the Inverter setting
How We Help
- NLite is specialized in Design, Implementation and Commissioning of Solar On-Grid projects
- We help the customer in getting approvals from the Local Electricity board of the Area
- Thoroughly understand the customer’s requirements and provide a Cost effective and efficient system which will be beneficial on the long run
- On-Time service and rectifications of any breakdowns
Advantages
- The only solar system which can work in remote places with no grid connectivity
- Applications include – Vehicles, Boats, Islands
- No dependency on electricity grid is required.
Disadvantages
- System efficiency depends on usage and if day time usage is less then efficiency will come down. Efficiency can vary between 70% - 95%.
- System installation cost is more than Solar On grid system.
- Addition of Batteries for backup will increase system cost and will require more space to store batteries.
- Periodic Maintenance of batteries is required