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Electricity

New wind farm in Alberta comes online September 1: AA, anyone?

by Stephen E. Aplin • September 2, 2019 • 8 Comments

The Whitla Wind project phase I came onto Alberta’s grid yesterday (September 1 2019) around 1:05 pm local time. Phase 1 is 202 megawatts capacity, making it the second-largest farm in the province— Blackspring Ridge, at 300 MW, is the…

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Electricity

Alberta’s coal phaseout: can wind replace coal?

by Stephen E. Aplin • July 11, 2019 • 12 Comments

Last time I started to unpack the inherently dismal performance and underlying economics of wind power in Alberta. The whole reason Alberta has started this dysfunctional relationship with wind is because it has a dream that wind will somehow replace…

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Electricity

The cost of wind power in Alberta

by Stephen E. Aplin • July 9, 2019 • 6 Comments

I keep watching Alberta’s electricity system operator’s website for new grid-connected wind farms, beyond the 20 ones that existed in mid-2018. As of today, July 9 2019, at 13:53 eastern time (11:53 Mountain time), that number is unchanged—the total capacity…

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Electricity

Buffalo NY: where green energy fantasies go to die, and reality dawns

by Stephen E. Aplin • March 12, 2019 • 3 Comments

There’s a thread on Reddit about Tesla’s Solar Roof announcements that is pretty funny if your job isn’t at stake, and pretty unfunny if it is. Here’s what Tesla has said about the alleged product since purchasing solar financing company…

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Electricity

Blather and risk: one short jerk’s take on Tesla’s most important “business model”

by Stephen E. Aplin • January 14, 2019 • 4 Comments

Much is written about Tesla’s apparently vastly overvalued stock price. Most commentators are all over the company’s obvious shortcomings—and especially its consistent failure to produce either vehicles or earnings on target. Many commendators, including me, assess Tesla’s valuation as the…

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Electricity

Pipe dream at Moss Landing: another reason Ontario was smart to get out of the Western Climate Initiative

by Stephen E. Aplin • November 26, 2018 • 8 Comments

Moss Landing unit 7 was a California steam cycle electricity generator that ran on natural gas. Its nameplate capacity was 739 megawatts. That meant that its operator could have run it at or near capacity, i.e. at 739 MW, for…

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Page 2 of 118
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Item A1 Current concentration of CO2 in the global atmosphere:
0.00 parts per million
In the last hour:
  • Nuclear reactors contributed 52.5 % of total electrical power generated in-province.
  • 90.6 % of Ontario-generated electricity was carbon-free.
  • Nuclear reactors contributed 57.9 % of Ontario's carbon-free electricity.
Table A1: Total Ontario generation, and related CO2 emissions, in hour preceding 20:05 EST on Apr 21 2021
FUEL MWh CO2, tons
Nuclear 8,624 0
Hydro 5,388 0
Gas 1,377 531
Wind 989 0
Biofuel 166 167
Oil & Gas 0 0
Solar 0 0
TOTAL 16,544 702
CO2 intensity per kWh (CIPK) in the last hour: 42.72 grams.
Table A2: Total Ontario generation, and related CO2 emissions, midnight to 20:05 EST on Apr 21 2021
FUEL MWh CO2, tons
Nuclear 186,001 0
Hydro 94,529 0
Gas 14,645 5,777
Wind 28,963 0
Biofuel 2914 2924
Oil & Gas 0 0
Solar 9,194 0
TOTAL 327,978 8,785
Average CO2 intensity per kWh (CIPK) over period: 25.98 grams
This content is updated at 50 minutes past the hour. Refresh at that time to see latest available data. Sources: www.ieso.ca and EmissionTrak™
Table A3 Should we replace nuclear plants with natural gas-fired ones? This table compares actual Ontario grid CO2 emissions from the last hour with those from a grid in which gas has replaced nuclear.
Actual Ontario grid Gas replaces nuclear
702 5,445
42.72 331.34
Tons CO2
CIPK, grams
If gas had replaced nuclear last hour, Ontario power plants would have dumped enough CO2 to fill Rogers Centre 1.9 times. As it was, 702 tons were dumped, which would fill Rogers Centre 0.2 times.

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