# CanadaBuys #20183423

Hydro-Québec seeks design support and construction of two 315–25 kV substations

**Posted:** November 13, 2026
**Respond By:** January 21, 2027
**Identifier:** 20183423
**NAICS:** 237130, 238210, 541330

Hydro-Québec is seeking a partner to support design and build two new high-voltage substations.
- **Government buyer:** Hydro-Québec, through Hydro-Québec Bureau des soumissions.
- **Opportunity:** Pre-construction support during project design, followed by construction of the Toupin and Souligny 315–25 kV substations.
- **Scope:** Architecture, civil engineering, electrical installation, underground lines, distribution, control, and telecommunications.
- **Quantity:** Two substations; no product part numbers or separate product line items are specified.
- **Value and duration:** Indicative estimated value is greater than $100 million, including options; estimated duration is 70 months.
- **Organizations named:** Hydro-Québec is the contracting organization. No other vendors or OEMs are identified.

### Description

The contract includes pre-construction support during project design, followed by construction of two new 315-25 kV substations. The work includes architecture, civil engineering, electrical installation, underground lines, distribution, control, and telecommunications. The estimated duration is 70 months, and the estimated value is greater than $100,000,000, including options; this estimate is indicative only and without commitment from Hydro-Québec. Bids are due January 21, 2027, at 14:00 EST.

[View original listing](https://canadabuys.canada.ca/en/tender-opportunities/tender-notice/qc20183423)