
On average, about 90% of the electricity Yukon Energy produces comes from renewable resources, primarily hydro. Yukon Energy owns three hydro facilities that produce electricity, but we don’t own the water that passes through the facilities to generate electricity. We have water use licences from the Yukon Water Board that allows us to use the water.
As part of our water use licences, there are several rules, or “conditions”, that we must follow, including managing the water supply level. For each lake, there are upper and lower supply level limits we must follow, noted on each chart below. Yukon Energy watches the water levels of the lakes that feed its hydro facilities closely. Water level data is also used for community-based monitoring and implementation of the Monitoring and Adaptive Management Plans in place for each facility.
Updated: 11 minutes ago
Notes from Yukon Energy:
Lake elevations may exceed the licensed full supply level as long as Yukon Energy is not controlling outflows (e.g., all gates open at Lewes Control Structure).
Later in April (of 2026), Marsh Lake began dropping faster than we had anticipated. March 2026 was one of the coolest on record and as a result, inflows had not increased as quickly as forecasted. We had installed gates at the Lewes Control Structure to decrease outflows from Marsh Lake and ensure we did not drop below the Low Supply Level (LSL) of Marsh Lake (as per our water use licence). We continue to manage lake levels towards LSL. Currently, there is enough buffer in Marsh Lake to open gates at the Lewes Control Structure. So, as of tomorrow (May 8), all gates at the Lewes Control Structure will be open.
Extracted from Environment and Climate Change Canada's Real-time and Historical Hydrometric Data web site on May 26, 2026 at 05:15.
This is a space to share information about current conditions at the lake. Your comments will help community members plan their activities on the water and shore.
Your comments will be approved by a moderator and posted here within 5 business days. Thank you for your contribution. Your name and email address will not be shown on this page.
Write your observation here:
Comments older than 30 days are removed.