The Annapolis Tidal Power Plant is a 20 MW tidal power station located on the Annapolis River immediately upstream from the town of Annapolis Royal, Nova Scotia, Canada. It is the only tidal generating station in North America. The generating station harnesses the tidal difference created by the large tides in the Annapolis Basin, a sub-basin of the Bay of Fundy. Opened in 1984, the Annapolis Royal Generating Station was constructed by Nova Scotia Power Corporation, which was, at the time, a provincial government Crown corporation that was frequently used to socially benefit various areas in the province.

The project has had mixed results. While effectively generating electricity, the blocking of water flow by the dam (to allow the tidal difference to accumulate every six hours) has resulted in increased river bank erosion on both the upstream and downstream ends. The dam is also known as a trap for marine life. Two notable cases occurred in:

• August 2004: a mature Humpback whale (nicknamed Sluice) swam through the open sluice gate at slack tide, ending up trapped for several days in the upper part of the river before eventually finding its way out to the Annapolis Basin.
• Spring 2007: When a body of an immature Humpback whale was discovered near the head of tide in the river at Bridgetown. A post-mortem was inconclusive but suggested the whale had become trapped in the river after following fish through the sluice gates.

Annapolis Royal Generating Station
Country	Canada
Locale	Annapolis Royal, Nova Scotia
Status	Operational
Commission date	1984
Owner(s)	Nova Scotia Power
Power station information
Primary fuel	Tidal
Power generation information
Installed capacity	20 MW
Annual generation	50 GWh