ᐅ Fire Risk of Photovoltaic Batteries: What Are the Installation Options?

Hello,

there are frequent concerns about the potential fire risk posed by batteries in photovoltaic systems and how difficult they can be to extinguish. I would be interested to know where you have installed your batteries and what precautions you have taken in case of fire. Photos are also welcome!

Thank you!

Use a LiFePO4 battery instead of a Li-Ion one, as the former does not catch fire. LiFePO4 batteries are likely the majority anyway, unless you install one of those Senec disaster units in your technical room.

There are practically no specific precautions, except for a dedicated, fireproof room or enclosure that you can completely flood if necessary.

I have set up a technical room in an outbuilding where both the inverter and the storage tank are located. It is 5m (16 feet) away from the house and contains no other combustible materials. In case of fire, the residential building would be safe. This is somewhat reassuring.

Is it also feasible to install the battery storage in an unheated outbuilding? I am thinking especially about winter and subzero temperatures. Or would it be better to place it within the building envelope?

Subzero temperatures are problematic. They reduce lifespan and capacity, and increase the risk of fire.

Someone had built an insulated cabinet in their garage. However, you need to ventilate it well in the summer.

Mine is simply located in the utility room.