AESO @theAESO Twitter profile

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AESO

@theAESO

8 months

Thank you, Alberta! Your conservation efforts quickly reduced electricity demand and the risk of rotating outages. A special shout out to our System Controllers, industry partners and the Government of Alberta for keeping the power flowing and all Albertans safe and warm tonight.

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AESO

@theAESO

8 months

The Grid Alert has ended as increasing wind and solar generation have created some relief on the system. Please continue conservation efforts during peak hours of 4-7 p.m. as extreme cold continues to challenge all of us in Western Canada.

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AESO

@theAESO

8 months

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AESO

@theAESO

8 months

The AESO has declared a Grid Alert. Please reduce electricity consumption to essential use only, through until 8 p.m. to avoid the possibility of rotating outages. Find more information here:

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AESO

@theAESO

8 months

The AESO has declared a Grid Alert due to extreme cold, high demand and low imports. Please reduce your electricity use to only essential needs, to lower demand and minimize the potential for rolling outages this evening.

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AESO

@theAESO

8 months

We have returned to normal market conditions. Thank you for your conservation efforts, and major kudos to our System Controllers and industry partners for ensuring power continues to flow throughout the province.

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AESO

@theAESO

6 months

Premier Danielle Smith toured our System Coordination Centre with CEO Mike Law today, to learn more about the real time operations of Alberta’s grid and how we’re working with stakeholders to ensure a reliable, affordable power system for Albertans today and in the future.

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AESO

@theAESO

8 months

Thank you again, Alberta! Please continue conservation efforts on Sunday at peak hours from 4-7 p.m. until the extreme cold abates.

AESO Thanks Albertans for Quick Response to Call for Power Conservation

AESO declares Grid Alert Ended; thanks Albertans for power conservation efforts....

www.globenewswire.com

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AESO

@theAESO

8 months

Albertans are asked to immediately reduce their electricity use to minimize the potential for rotating outages across the province. See our media release: Albertans Asked to Conserve Power to Minimize Potential for Rotating Outages  » AESO

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AESO

@theAESO

8 months

The AESO has declared a Grid Alert due to extreme cold, and several power facility outages. Find information on Grid Alerts and energy conservation tips here.

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AESO

@theAESO

3 years

We have declared an Energy Emergency Alert (EEA) Level 1 as of 4:34 p.m. on Tuesday, June 29, 2021. This situation is due to the heat wave driving higher demand and a decline in available generation. Please conserve energy during peak hours 4-7p.m. #ABElectricity

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AESO

@theAESO

8 months

The Grid Alert has ended, and Alberta has returned to normal grid conditions. There are no reliability concerns at this time, and we thank our System Controllers for keeping the grid stable 24/7, under any and all conditions!

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AESO

@theAESO

8 months

High power demand due to extreme cold, two large natural gas generator outages, and very low renewable power on the system have prompted the AESO to declare a Grid Alert. Find information on Grid Alerts here

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AESO

@theAESO

2 months

The AESO declared a Grid Alert at 8:25 p.m. on Monday, July 8, 2024. Find information on Grid Alerts here

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AESO

@theAESO

5 months

The AESO has declared a Grid Alert due to unexpected generation loss. Find information on Grid Alerts and energy conservation tips in the link below:

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AESO

@theAESO

8 months

It’s still a chilly one out there! Our System Controllers remain on top of it, managing Alberta’s electricity network 24/7 to keep the power flowing. We also thank our industry partners for working to keep the lights on. You can help, too, by conserving power 4-7 p.m.

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AESO

@theAESO

2 years

Extreme cold temperatures and high electricity demand, have prompted the AESO to declare a Grid Alert at 4:47 p.m. Find more info on Grid Alerts and how to conserve energy here:

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AESO

@theAESO

5 months

The AESO has declared a Grid Alert as of 6:49 a.m. due to tight supply. Generation is slowly coming online, and we expect conditions to return to normal by 10:00 a.m.

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AESO

@theAESO

2 months

The Grid Alert has ended and we’ve returned to normal operations. Thank you to our System Controllers and industry partners.

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AESO

@theAESO

3 years

We have declared an Energy Emergency Alert (EEA) Level 2 as of 4:46 p.m. on July 14, 2021. This is due to unplanned loss in generation. Reserves are balancing the power system. Supply continues to meet demand. Please conserve energy if you can between 4-7p.m. #ABElectricity

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AESO

@theAESO

5 months

The Grid Alert has ended and we’ve returned to normal operations. Supply forecasts remain tight, please continue to conserve electricity where possible. Thank you to our System Controllers, industry partners and all Albertans.

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AESO

@theAESO

1 year

The AESO declared a Grid Alert at 3:49 p.m. due to hot temperatures and low wind, combined with an unplanned generator outage. Please consider conserving electricity through peak consumption hours of 4-7 p.m. Check out our website for tips: …

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AESO

@theAESO

5 months

Alberta’s electricity grid continues to be strained. Please conserve where you can. Here are some tips to conserve power at home:

Electricity Conservation & Grid Alerts

The AESO issues a Grid Alert when the power system is under stress and we’re preparing to use emergency reserves to meet demand and maintain system reliability. Consumers are asked to reduce their...

www.aeso.ca

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AESO

@theAESO

8 months

Grid challenges are easing. Stay warm and we’ll keep you posted on new developments.

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AESO

@theAESO

3 years

The Energy Emergency Alert (EEA) Level 1 has ended as of 6:09 p.m. on Tuesday, June 29, 2021. Energy supply is sufficient to meet demand. Thank you for continuing to conserve energy! #ABElectricity

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AESO

@theAESO

5 years

It's official...we have a new all-time peak electricity consumption record of 11,698 MW surpassing the 2018 record by 1 MW! Grid conditions are looking good for the evening. Thank you for your conservation efforts. Stay safe and keep warm everyone!

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AESO

@theAESO

5 months

We have returned to normal market conditions. Thank you for your conservation efforts tonight.

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AESO

@theAESO

2 years

We’ve returned to normal grid conditions and will issue an update if anything changes. A big thank you to our System Controllers who work hard to maintain grid reliability 24/7, deftly balancing our electricity system in challenging conditions like we’ve experienced this week.

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AESO

@theAESO

2 years

Continued extreme cold weather, high electricity demand, and an unplanned outage has prompted the AESO to declare a Grid Alert at 8:25 a.m. Find information on Grid Alerts here Grid Alerts & Electricity Conservation » AESO

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AESO

@theAESO

2 years

The grid has returned to normal operating conditions as of 6:10p.m. The AESO recorded a new all-time peak demand of 12,187 MW yesterday, compared to our previous high of 11,939MW in January. Thank you for your conservation efforts!

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AESO

@theAESO

3 years

Extreme weather affecting the operations of some generation facilities prompted the AESO to declare an Energy Emergency Alert (EEA) Level 2 at approximately 7:30 p.m. on Monday, Dec. 27, 2021. #ABElectricity

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AESO

@theAESO

3 years

We've returned to normal grid conditions and will keep you updated if anything changes. Thank you to our system controllers for your great work! Please consider conserving energy through this cold snap. Here are some tips #ABElectricity

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AESO

@theAESO

3 years

The system remains in an EEA 2 (using reserves). With the extreme cold affecting some generation facilities, you can help by turning off your holiday house lights early tonight. Stay warm! #ABElectricity .

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AESO

@theAESO

2 years

The grid returned to normal operating conditions at 6:29 p.m. Demand reached 12,193 MW, an all-time hourly peak. Consider trying to conserve energy where and when you can and stay warm!

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AESO

@theAESO

3 years

The grid is in good shape! Temperatures are beginning to rise and our system controllers continue to monitor the grid. #ABelectricity

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AESO

@theAESO

2 months

We hit a new all-time summer peak record July 9, 2024 of 11,820 megawatts! The previous summer record was 11,721 MW set on June 29, 2021. The grid is in good shape, but energy conservation always helps.

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AESO

@theAESO

8 months

Demand for electricity in Alberta hit a new hourly peak of 12,384 megawatts on Thursday, January 11, 2024, as extreme cold weather blanketed the province. Stay warm and check out our electricity conservation tips:

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AESO

@theAESO

8 months

With a Grid Alert in effect, please consider conserving electricity through peak evening consumption hours. Check out our website for tips.

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AESO

@theAESO

4 years

The deep freeze has passed! Big thank you to all the operators, plant operators, line personnel and utility professionals who got the power to our homes and businesses during the recent cold snap. #abelectricity

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AESO

@theAESO

3 years

Grid conditions are in good shape as we approach this historic heat wave in the next few days. Our system controllers are monitoring the grid 24/7 to ensure we can continue to meet the power needs of all Albertans. (1/2)

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AESO

@theAESO

2 years

The Grid Alert ended at 8:45 p.m. and system conditions have returned to normal. Thank you to our hard-working System Controllers!

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AESO

@theAESO

1 year

The AESO declared a Grid Alert in response to challenging conditions caused by hot weather, heavy demand, a B.C. outage impacting imports, low wind and declining solar. Find out more at

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AESO

@theAESO

3 years

(1/2) The end of the cold snap is in sight! Thank you to everyone who did their part to keep the lights on during the extreme temperatures. Thanks to our operators and to utility operators throughout the province for their tireless efforts to see that we all had electricity!

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AESO

@theAESO

5 months

The AESO held a media briefing today to share details for the Grid Alerts on April 3 and 5, 2024. The session was recorded and is available on our media page here:

Media Briefing: Overview of the Grid Alerts

www.aeso.ca

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AESO

@theAESO

3 years

We hit a new all-time electricity usage record Jan. 3 of 11,939 MW. Previous record was 11,729 MW. The grid is in good shape but with lower temperatures conservation always helps.

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AESO

@theAESO

7 years

Here are the successful projects for REP Round 1! For more information: #ABElectricity #RenewableElectricity

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AESO

@theAESO

1 year

Grid conditions are starting to improve. Thank you to our System Controllers for all your great work managing the electricity network to keep power flowing! Find out more.

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AESO

@theAESO

3 years

We have declared an Energy Emergency Alert (EEA) Level 2 as of 3:52 p.m. EEA 2 means we are using reserves to balance the power system. This is due to unplanned generator outages, low wind and a reduction of import capability. Supply is tight but still meeting demand. (1/2)

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AESO

@theAESO

1 month

We hit a new summer peak record yesterday of 12,219 MW. The previous summer record was 12,122 MW set on July 10, 2024. You can play a role in reducing strain on the grid during this heat wave by minimizing energy consumption from 5-9:30 p.m.

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AESO

@theAESO

1 year

We’ve returned to normal grid conditions and have no concerns with stability at this time. Thank you for powering down when needed - and kudos to our System Controllers for keeping the grid balanced under challenging conditions! #ABelectricity

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AESO

@theAESO

5 years

Cold weather affecting operations of some generation facilities & electricity consumption is expected to climb today. We encourage you to conserve electricity during peak hours 4 to 7 p.m. Check out our website for tips and retweet/repost.

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AESO

@theAESO

6 years

Our system controllers work very hard to maintain grid stability during the heat. If you can conserve power this afternoon please do so. Here are ways to help: #Alberta

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AESO

@theAESO

6 years

We reached peak demand twice yesterday. Our new summer peak is 11,163! ☀️As we start another hot day, please remember to stay hydrated & in the shade. New summer peak today? We shall see…!

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AESO

@theAESO

2 months

We have a great resource of solar generation in Alberta, but when the sun sets so does that supply. In summer the heat stays longer and so does demand. Conserving power between 5-9:30 pm helps - a little from each household helps a lot! More tips here:

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AESO

@theAESO

1 year

Due to a combination of hot weather, a BC outage that affects intertie capability to import, and low wind generation, the AESO has declared a Grid Alert. Find information on Grid Alerts here

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AESO

@theAESO

2 years

The AESO declared a Grid Alert at 4:24 p.m. as frigid temperatures affected some generation facility operations. Please consider conserving electricity through peak consumption hours of 4-7 p.m. Check out our website for tips:

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AESO

@theAESO

1 year

The Grid Alert has ended, the grid is stable and we've returned to normal operations. Thank you to our System Controllers for all your great work! Check out our website at to see how Alberta's grid is operated.

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AESO

@theAESO

4 years

Power outages likely caused by a lightning strike to a major transmission line are largely restored. Thank you to AB’s power industry for your quick response and to Albertans for your patience.

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AESO

@theAESO

5 years

Today is National Lineworker Appreciation Day! Lineworkers are highly trained men and women who work on maintaining our utility infrastructure across the province. Let’s give thanks to those who work at keeping your lights on every day! #LineworkerDay #NLAD

Electricity Canada

@Electricity_CA

5 years

Let’s give thanks to Canada’s lineworkers who work at keeping your lights on everyday! Join us on July 10th 💡 #LineworkerDay #NLAD

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AESO

@theAESO

4 years

Weather related issue impacting Alberta's electricity system this afternoon and causing power outages. Currently investigating. We will provide an update as soon as we know more.

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AESO

@theAESO

11 months

The Alberta Electric System Operator (AESO) outlined its views today on how the federal draft Clean Electricity Regulations could impact Albertans. Access the news conference recording, technical briefing, and backgrounder here.

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AESO

@theAESO

2 years

Cold temperatures, low wind and generation challenges prompted the AESO to declare a Grid Alert at 4:53 p.m. Find more info on Grid Alerts here:

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AESO

@theAESO

7 years

Today, @YourAlberta announced details of REP Rounds 2 & 3. Click here for more info: #ABElectricity #RenewableElectricity

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AESO

@theAESO

2 years

We’ve returned to normal grid conditions at 6:05 p.m. and will keep you updated if anything changes. Thank you to our System Controllers for all your great work!

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AESO

@theAESO

1 year

It’s still hot out there! Do your part to conserve electricity during peak demand, from 4 p.m. to 7 p.m., to reduce strain on the grid. Find out more.

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AESO

@theAESO

1 year

We’ve returned to normal grid conditions and will keep you updated if anything changes. Thank you to our System Controllers for all your great work! Check out our website at for a fact sheet on How the Grid is Operated.

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AESO

@theAESO

3 years

(2/2) And thank you to Albertans for their conservation efforts. We hit a new all-time electricity usage record on Jan. 3 of 11,939 MW and were able to maintain our grid due to the efforts of all. #ABelectricity

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AESO

@theAESO

7 years

So. Many. Peaks! Updated graphic below. (Deleted prev. tweet) #ABElectricity

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AESO

@theAESO

5 years

Thanks everyone for your power conservation efforts over the last few days. Please consider reducing your electricity use again tonight during peak hours of 4 to 7 p.m. Check our website for conservation tips #ABelectricity

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AESO

@theAESO

2 years

The AESO issued a Grid Alert at 6:14 p.m. on Tuesday, Sept. 27. Emergency reserves are now being used to maintain system reliability. Find information on Grid Alerts here:

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AESO

@theAESO

4 years

Thank you to our system controllers who work very hard to maintain grid stability 24/7. This week with warmer temperatures in the forecast, consider trying to conserve energy where and when you can. #ABElectricity

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AESO

@theAESO

2 years

Members of our Executive team met with @MattJonesYYC , Minister of Affordability and Utilities. In addition to discussing electricity issues, his staff received a tour of the System Coordination Centre, where the AESO’s System Controllers manage Alberta’s power grid in real time.

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AESO

@theAESO

5 years

AESO system controllers monitoring the grid closely today as colder temperatures continue. More info available on our website

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AESO

@theAESO

2 years

The grid has returned to normal operating conditions as of 6:18 p.m. Thank you for your conservation efforts!

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AESO

@theAESO

8 years

#WomenInScience power Alberta’s grid every day at the AESO - as engineers, mathematicians and in grid operations. 🙌 #WomenInScienceDay

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AESO

@theAESO

2 years

Due to cold weather, low wind conditions and generator derates/power reductions and an unplanned outage, the AESO declared a Grid Alert at 4:47 p.m. Find information on Grid Alerts here

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AESO

@theAESO

3 years

A new summer peak of 11,721 MW was recorded on June 29, 2021. We are forecasting a similar load on the grid today as yesterday. Please conserve electricity today where and when you can! #ABElectricity More tips on how to conserve here:

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AESO

@theAESO

6 years

We are pleased to share the impressive results of REP Rounds 2 and 3! Visit for more details.

Marg McCuaig-Boyd🇨🇦

@MargMcCuaigBoyd

6 years

Today in #yyc we announced that industry & First Nations are partnering up on 5 renewables projects that will create 1,000 jobs, attract $1.2B in investment, power 300,000 homes & keep us on track for our goal for 30% of electricity to come from renewable sources by 2030. #ableg

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AESO

@theAESO

4 months

We have published our 2024 Long-Term Outlook (LTO) report, along with accompanying data. #ABElectricity To learn more, click here:

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AESO

@theAESO

2 months

It’s hot! At these temps demand for electricity goes up – yesterday to a record peak of 12,122 MW. Conserving power at this time of year between 5-9:30 p.m. helps keep our grid strong for all Albertans. Stay cool! #ABElectricity More tips here:

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AESO

@theAESO

2 years

We’ve returned to normal grid conditions and will keep you updated if anything changes. Thank you to our System Controllers for all your great work! Check out our website at for a fact sheet on How the Grid is Operated.

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AESO

@theAESO

2 months

With the continued heatwave, please conserve electricity this evening and this week where and when you can! #ABElectricity More tips on how to conserve here:

Electricity Conservation & Grid Alerts

The AESO issues a Grid Alert when the power system is under stress and we’re preparing to use emergency reserves to meet demand and maintain system reliability. Consumers are asked to reduce their...

aeso.ca

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AESO

@theAESO

5 years

We returned to normal grid conditions and will keep you updated if anything changes. Thank you to our system controllers for all of your great work! Check out our website to watch a video on how they operate the grid.

Grid Operations

As electricity moves through Alberta, we make sure the system is safe and reliable. Find out how.

www.aeso.ca

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AESO

@theAESO

3 years

Yesterday evening a new summer peak was recorded at 11,512 MW. We are forecasting that record to be broken again today. Please conserve electricity today where and when you can! #ABElectricity More tips on how to conserve here:

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AESO

@theAESO

3 years

The Energy Emergency Alert (EEA) Level 2 has ended as of 6:06 p.m. on Wednesday, July 7, 2021. Energy supply is sufficient to meet demand. Thank you for continuing to conserve energy! #ABElectricity

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AESO

@theAESO

3 years

The Energy Emergency Alert (EEA) Level 2 has ended as of 7:34 p.m. on Wednesday, July 14, 2021. Energy supply is sufficient to meet demand. Thank you for continuing to conserve energy! #ABElectricity

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AESO

@theAESO

1 year

While the Grid Alert remains in effect, energy needs across the province continue to be met. Thank you to all Albertans for doing your part to conserve energy.

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AESO

@theAESO

7 years

Alberta’s electricity demand hasn’t reached a new winter peak even in this cold weather. 11,458 MW was the record set Dec. 16, 2016.

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AESO

@theAESO

2 years

We have launched an interactive online mapping tool for selecting locations for potential new generation on Alberta’s transmission system. It’s another way we are working to deliver value to Albertans, and plan the #FutureOfElectricity in the province.

Transmission Capability Map

www.aeso.ca

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AESO

@theAESO

2 years

AB electricity grid conditions starting to improve. Supply is tight but still meeting demand. You can help by following our electricity conservation tips: #ABElectricity

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AESO

@theAESO

6 years

88% of voters correctly guessed we would break another record today. 🙌 We reached our new summer peak of 11,099 MW at 5pm!

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AESO

@theAESO

3 years

The National Day for Truth and Reconciliation is a day to reflect on Canada’s history and relationship with Indigenous Peoples. We are encouraging our AESO family, along with all Albertans and Canadians, to reflect on Sept. 30. AESO offices will be closed to observe this day.

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AESO

@theAESO

6 years

It’s a hot one! We reached a new summer peak of 10,880 MW yesterday at 5pm. Remember to stay hydrated and in the shade! 😎

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AESO

@theAESO

4 years

It's still cold out and electricity usage is going up! We hit a new all-time record yesterday of 11,729 MW passing the previous record of 11,698 MW. There is a good possibility we will go higher as the cold weather sticks around. Stay warm! #ABElectricity

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AESO

@theAESO

3 years

At 2:43 p.m., the transmission line connecting AB to B.C. went offline unexpectedly. There was approx 700 MW of supply coming to Alberta at that time. The grid’s safety systems kicked in and temporarily caused local power outages. (1/2)

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AESO

@theAESO

6 years

We are accepting Expressions of Interest for REP Rounds 2 and 3. Find out more here: #ABElectricity

Renewable Electricity Program

Learn more about how the AESO is working to bring more renewable electricity to Alberta.

www.aeso.ca

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AESO

@theAESO

7 years

10,852 MW. New summer record set today. Here are some tips to conserve electricity year-round.

Electricity Conservation & Grid Alerts

The AESO issues a Grid Alert when the power system is under stress and we’re preparing to use emergency reserves to meet demand and maintain system reliability. Consumers are asked to reduce their...

www.aeso.ca

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AESO

@theAESO

6 years

AB’s grid conditions are expected to be tighter than normal today. Please conserve where you can. Here are some tips to conserve power at home: #ABelectricity

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AESO

@theAESO

2 years

With a Grid Alert in effect, please consider conserving electricity through peak consumption hours of 4-7 p.m. Check our website for tips.

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AESO

@theAESO

3 years

We have posted a media statement to our website in regards to the heat wave, and these record-setting temperatures. #ABElectricity More information here:

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