Solar: inverter, interconnection and grid authorization

Treat modules, inverter, protection, metering, grid hosting capacity and final authorization as one electrical project.

VERT / GREEN

Gather inverter model, DC/AC rating, single-line diagram and equipment locations.

JAUNE / YELLOW

A good roof and modules alone do not guarantee the project can connect to the grid.

ROUGE / RED

Never self-connect generation to the grid; utility authorization and electrical contractor work are distinct required steps where applicable.

Project triage

Equipment bought before grid application
Verify compatibility and process before committing more cost. Plan to energize before final authorization
Do not grid-connect before required authorization. Battery/V2H added
Review diagram, protection, backup modes and interconnection. Verification report complete
Archive diagram, settings, authorization and installed models.

What the professional checks

The electrical contractor designs/installs and submits the application; the utility reviews the grid and authorizes parallel operation under its standards.

Official sources

Hydro-Québec — autoproduction

Vérifié / checked: 2026-08-23

Related path

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These links connect this page to the next useful checks and decisions without repeating the full content.

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