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Off Grid & Grid Tie Battery Bank Placement Due to New Canada Code

19 May 2023


As more and more people turn to off-grid living and installing Grid Tie solutions, the Canadian government has introduced a new code that affects the placement of battery banks. The new code is designed to ensure that off-grid systems and grid tie battery backups are installed safely and effectively. In this blog post, we will explore the factors you need to consider when placing your battery bank to comply with the new Canada code.

Section 1: Understanding the New Canada Code

The new Canada code, UL9540A, was introduced in 2020 to regulate the installation of off-grid power systems. The code outlines specific requirements for the installation and maintenance of battery banks, including their placement. The code applies to all off-grid and grid tie systems, including those used for residential, commercial, and industrial purposes.

One of the key changes introduced by the new code is the requirement that battery banks be installed in a separate room or enclosure that is vented to the outside. This is to prevent the accumulation of hydrogen gas, which is produced by the batteries during the charging process. Hydrogen gas is highly flammable and can pose a significant safety risk if not properly vented.

Another requirement of the new code is that battery banks must be installed on a non-combustible surface. This is to prevent the risk of fire, which can be caused by overheating batteries or a short circuit. The non-combustible surface can be made of materials such as concrete, metal, or tile.

Section 2: Factors to Consider When Placing Your Battery Bank

When deciding where to place your off-grid battery bank, there are several factors you need to consider to ensure compliance with the new Canada code. The first factor is ventilation. As mentioned earlier, the battery bank needs to be installed in a separate room or enclosure that is vented to the outside. The ventilation system must be designed to ensure that any hydrogen gas produced by the batteries is safely vented to the outside.

The second factor to consider is the proximity of the battery bank to other equipment and structures. The battery bank should be located away from other electrical components and appliances to prevent the risk of fire. It should also be located away from living spaces to prevent exposure to hydrogen gas.

The third factor to consider is accessibility. The battery bank should be easily accessible for maintenance and repairs. The room or enclosure should be large enough to allow for safe and easy access to the batteries.

Section 3: Installation and Maintenance Requirements

In addition to the placement requirements outlined in the new Canada code, there are also specific installation and maintenance requirements that must be followed. The battery bank must be installed by a qualified electrician. The electrician should also be familiar with the new Canada code and ensure that all requirements are met.

Regular maintenance of the battery bank is also important to ensure that it continues to function safely and effectively. The batteries should be inspected regularly for signs of damage or wear. The ventilation system should also be inspected to ensure that it is functioning correctly and that there are no blockages.

Finally, it is important to have a plan in place for dealing with emergencies. This should include procedures for dealing with a fire or other safety issue, as well as a backup power source in case of a power outage.


The new Canada code for off-grid power systems is designed to ensure that these systems are installed safely and effectively. The placement of battery banks is a key requirement of the code, and there are several factors that need to be considered when deciding where to place your battery bank. By following the new code and ensuring that your battery bank is installed and maintained correctly, you can enjoy the benefits of off-grid living or Grid Tie power backup without compromising on safety. To learn more contact CDN Solar at Tel: 778-775-4122 Email: or visit our website for more info

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