Power & Utilities · MB

Conawapa Hydro (revived)

Context — not in prospectus Manitoba

1,485 MW on the Nelson River; seeking private financing partner

At a glance

Proponent
Manitoba Hydro
Capex (as printed)
C$18B – C$20B C$ source
Capex (US$, midpoint)
US$13B – US$15B
Stage
Early / concept
Location
56.50°N, 93.00°W
Summit deal plate
No — context project (not in the investor prospectus)
Fast-track list
No MPO referral on record
Project location.

Cost by component Estimate

Listed: C$18–20B current estimate · C$10.2B in 2013 · not in prospectus. C$ ranges anchored on the comparables under each bar.

Powerhouse, dam, spillway & civil works
C$10B – C$12B
Keeyask (695 MW) came in at C$8.7B; Conawapa is 2.1× the capacity with better site geology
Transmission & AC collector (incl. Bipole capacity)
C$2B – C$3B
New 500 kV ties into the Bipole III / Henday system
Indigenous partnership, community & environment
C$1B – C$1.5B
Keeyask-style equity partnership with Cree nations; licensing
Interest during construction & financing
C$3B – C$4B
8-year build at Hydro's cost of debt
Contingency
C$1.5B – C$2.5B
Keeyask overran its C$6.5B budget by ~35%
Sum of ranges
C$17.5B – C$23B

Key facts Reported

Capacity
1,485 MW, ~7,000 GWh/yr — enough for ~636,000 homes
Site
Lower Nelson River, 30 km below Limestone, 90 km east of Gillam
Build
8–8.5 years after permits; ten units
Financing
Kinew seeking a private financial partner; Manitoba Hydro net debt ~C$25B heading to ~C$40B
Context
Shelved 2014 at C$10B; revived 2025–26 as data-centre load appeared, then MB dropped hyperscale pursuit June 2026

Timeline

Modelled GDP contribution Modelled

Build 2032–2037 at 55% construction value-added, then 7% of capex per year operating. Peak US$1.3B/yr · cumulative 2026–40 US$10B.

US$0MUS$500MUS$1.0B2026203020352040

Connectivity · nearest existing infrastructure

Straight-line distance from the project point to the nearest vertex of each network layer.

Railway69 km
Major highway878 km
Transmission ≥230 kV83 km
Pipeline755 km
PortChurchill262 km
Generating stationLimestone (1,340 MW)68 km
City >50kWinnipeg786 km

Nearest other projects

Port of Churchill PlusMarine & Port262 km
Thompson Nickel MineMinerals & Metals313 km
Minago Critical MineralsMinerals & Metals433 km
PAK LithiumMinerals & Metals590 km
Ring of Fire (Juno Corp.)Minerals & Metals595 km

Also in Manitoba

Port of Churchill PlusAdvanced / FEEDUS$57B
Manitoba Renewable Fuel Production FacilityAdvanced / FEEDUS$1.4B
Minago Critical MineralsFeasibility / permittingUS$1.0B
Prairie SilicaAdvanced / FEEDUS$400M – US$500M
Thompson Nickel MineUnder constructionUS$200M

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