A fixed home battery stores electricity to use later. In Quebec, it can do three jobs. In an outage, it keeps the circuits you chose running, and big outages are not rare: the April 2023 ice storm cut power to up to 1,125,000 customers at once, and the 2022 holiday storm affected some 640,000. With solar panels, it stores part of the production. And on Hydro-Québec's Rate Flex D, it takes over during winter peak demand events, when electricity costs 46.463¢/kWh instead of 9.103¢, for at most 120 hours per winter.
Two limits to know. Flex D is incompatible with net metering, so with solar panels enrolled in that option. And among Quebec's ten municipal and cooperative utilities, only Hydro-Sherbrooke offers Flex D in the by-laws we reviewed.
Since October 1, 2026, Rénoclimat pays up to $4,000 for a fixed battery of at least 5 kWh, permanently connected to the panel, with a true sine wave inverter (1.2 kW continuous, 2.5 kW surge), grid-connected and compliant with Hydro-Québec standard E.12-07. A separate measure pays up to $1,000 of a master electrician's fees to connect a backup power source with a transfer switch. Both cover principal residences, duplexes, triplexes and multi-unit residential buildings, not secondary residences. No other public assistance, including tax credits and municipal aid, can be combined for the same work. You must apply within 12 months after the work, and before March 31, 2029. LogisVert, for its part, excludes storage.
To choose an installer, insist on a master electrician who belongs to the CMEQ and holds an RBQ subcategory 16 licence, who files the connection request with Hydro-Québec or your municipal utility before you buy and waits for conditional approval. Ask for an inverter certified to UL 1741-SB and compliant with IEEE 2030.5, as standard E.12-07 provides, and get the backed-up circuits listed in writing. Our home battery guide details these choices, the home battery calculator runs your numbers, and another guide helps you check a contractor's licence.
Then pick your region: documented outages, the local utility and municipal programs vary from one end of Quebec to the other.