Wave and Tidal power plant in Nova Scotia, Canada. Approximate location 44.753, -65.5119.
Wave and TidalNova ScotiaCanada
Annapolis Tidal is a 20 MW wave and tidal power plant in Nova Scotia, Canada. It is operated by Nova Scotia Power Inc. Based on its capacity (estimated), it can supply roughly 13k homes (estimated). It ranks #569 of 1,211 Canada power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, the national grid averages 191 gCO₂/kWh (77.0% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id CAN0007618.
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
The capacity and fuel fields on this page are source-record values from the upstream open dataset. They are useful for identification and ranking, but they have not been upgraded to a 2026 registry/GEM-location verified value.
capacity: WRI Global Power Plant Database source-record (legacy); fuel: WRI source-record fuel
This facility converts its energy source into electricity for the grid; its capacity, fuel type and location determine its role in the national power mix.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
Operated by Nova Scotia Power Inc.
This wave and tidal plant converts the motion of waves or tides into electricity. It sits in a warm-summer humid continental climate (Köppen Dfb) — Northern Hemisphere, latitude 44.8°N — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
Heating degree-days here run 73% above the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.
Climate heat-demand index: 87/100 — this site sits in the top third of the power plants we cover by heating degree-days.
Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.
For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in a moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.
Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.
Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.
Canada has 1 wave and tidal power plant in this dataset, together about 20 MW of capacity.
Coordinates 44.753, -65.5119 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Annapolis Tidal is a 20 MW source-record wave and tidal power plant in Nova Scotia, Canada.
Its output is enough to supply roughly 12,514 homes (estimated).
Annapolis Tidal is operated by Nova Scotia Power Inc.
