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Off-Grid Solar Energy System with Battery Backup

This type of system is for those who truly want energy independence.

It is completely independent of the electric utility grid. It is also very valuable in remote areas where there are no existing power lines. For this reason, off-grid systems are very popular in mountain and forests areas, for cabins or homes that are far away from the electrical grid. It has all of the features and benefits of a standard grid-tied system, but with the additional benefit of uninterruptible power.
The battery backup will ensure that you have electricity for critical loads in when the sun is down or blocked by clouds. When the optional backup generator is added, you are truly protected against nearly any catastrophic situation. There is also a optional DC hookup, which means you can use DC appliances and power devices.

Off-Grid Solar System With Battery Backup

Typical off-grid Solar Energy system

How it works:

1) Sunlight hits the solar module, which is attached to your roof with the mounting racks.

2) The solar (or photovoltaic) cells inside the module then convert the light into electricity.

3) This electricity travels through wires to the charge controller, which senses battery voltage and regulates battery charging - the electricity is then used to keep the batteries fully charged to ensure uninterruptible power.

4) The remaining electricity is then transferred to the inverter and/or the load controller (optional, if you want/need DC electricity).
4a) The inverter takes the electricity from the solar module (DC electricity) and converts it into the electricity your home needs to run your appliances, lighting, etc. (AC electricity).
4b) The load controller is used for any DC power device you may want to run, and decreases the energy losses experiences when the inverter converts the DC to AC. Nearly all power devices and common appliances use AC electricity. Although, there are DC power devices available.

5) The AC electricity then travels to a standard AC service panel (breaker box), and is supplied to directly to your home/business.
5a) The DC electricity (optional) then travels to a standard DC service panel (breaker box), and is supplied to directly to the DC loads in your home/business.

6) (Optional) In the event of an emergency (extended cloud cover or unforeseen system disruption), your system automatically begins to draw power from the backup generator and converts it into the electricity you need.

The main components of this system:

  • Mounting racks
  • Solar modules
  • Charge controller
  • Inverter
  • Battery bank