Batteries are a key component in a stand-alone renewable energy system. If you are installing a wind, solar panel or hydro electric system that will be tied to your utility grid, meaning an “on-grid” system,  you can only use your power at the time you produce it. (i.e. you will not have power when the sun isn’t out if you don’t have batteries to buffer and back up  your solar energy system).

Lithium Batteries

 In general : The latest and most praised solution for storing energy nowadays although more expensive, they can store energy that is over 90% usable and will live on full capacity capabilities for 10 years or more, while Gel or lead acid batteries must remain over 50% of their storage capabilities to live rarely more than 5 years. If you do the math you will see that it is not even more expensive to buy lithium batteries now as prices of lead acid batteries only go up! It is capital demanding but you win in terms of ROI.    

See our lithium battery choices:

Growatt GBLI6531 (ATL battery)

Gel Batteries – are another option for lower budget Solar Powered Systems.