STANDATA Variance on Energy Storage Systems in Residential Buildings

November 1, 2023

Industry has identified concerns regarding Energy Storage System (ESS) requirements. This variance permits the installation of an ESS at a dwelling unit or residential occupancy not exceeding 20 kWh for any single ESS, as an alternative method to the C22.1:21 – Canadian Electrical Code, Part I.

The current electrical code, C22.1:21 – Canadian Electrical Code, Part I, Rule 64-918 2) prohibits the installation of ESS’s utilizing batteries below grade, including basements of dwelling units. Additionally, 64-918 4) prohibits ESS’s with a storage capacity above 1 kWh from being installed in a dwelling unit or living space of a residential occupancy including clothes closets, storage rooms, bathrooms, stairways, or in any similar undesirable locations.

The next electrical code is C22.1:24 – Canadian Electrical Code, Part I is expected to contain requirements for ESS installations up to 20 kWh for any single ESS installed at a dwelling unit or residential occupancy.

The upcoming code provisions in the 2024 edition were developed by the CSA Group. Additional standards related to ESS’s include:

  • Batteries for Use in Stationary and Motive Auxiliary Power Applications ANSI/CAN/UL1973, which covers battery safety,
  • Energy Storage Systems and Equipment ANSI/CAN/UL 9540, which covers overall ESS system safety,
  • ANSI/CAN/UL 9540A Standard for Test Method for Evaluating Thermal Runaway Fire Propagation in Battery Energy Storage Systems, which covers fire propagation testing.

Go HERE for more information.

Related Articles

Changing Scene

  • AD and The Commonwealth Group Announce Intent to Merge

    AD and The Commonwealth Group Announce Intent to Merge

    In a move that is expected to positively impact the future of independent PHCP distribution in the United States, AD and The Commonwealth Group (TCG) announce their intent to merge. The AD Board of Directors and the TCG Board of Directors are pleased to jointly announce that after many months of confidential discussions and extensive… Read More…

  • Hammond Power Solutions Provides Update on U.S. Tariff Changes

    Hammond Power Solutions Provides Update on U.S. Tariff Changes

    Hammond Power Solutions Inc. has determined that the recently expanded U.S. tariffs on steel and aluminum derivative products apply to certain materials and components included in many of the Company’s products. The Company expects these tariffs to have a relatively uniform impact across its industry and will work collaboratively with its customers and suppliers to… Read More…

Peers & Profiles

Copper US Dollar Price Per Pound