
Table A1: Total Ontario generation, and related CO₂ emissions, in hour preceding 07:03 EST on Feb 27 2015
FUEL	MWh	CO₂, tons
Nuclear	11,026	0
Hydro	4,791	0
Gas	5,449	2,809
Wind	265	0
Biofuel	28	0
Oil & Gas	0	0
Coal	0	0
TOTAL	21,559	2,809
CO₂ intensity per kWh (CIPK) in the last hour: 130.29 grams.


Table A2: Total Ontario generation, and related CO₂ emissions, midnight to 07:03 EST on Feb 27 2015
FUEL	MWh	CO₂, tons
Nuclear	88,329	0
Hydro	32,335	0
Gas	35,564	18,203
Wind	3,675	0
Biofuel	224	0
Oil & Gas	0	0
Coal	0	0
TOTAL	160,127	18,203
Average CO₂ intensity per kWh (CIPK) over period: 113.22 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™

Ontario data goes into the (Virginia coal) cloud, and off its own clean power

by Stephen E. Aplin • December 23, 2014 • 0 Comments

A stereotypical Ontario scene, brought to you courtesy of coal that was dug out of the ground and burned in Virginia. Ontario outsourced its data centres to Amazon’s cloud server services. Amazon’s cloud servers are in Virginia, where electricity is cheap, unlike in Ontario.

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Walking lightly on the planet: a comparison of uranium and gasoline

by Stephen E. Aplin • December 22, 2014 • 3 Comments

Darlington dry cask storage facility, December 10 2014. Each of the big white containers in the background holds nearly 400 radioactive fuel bundles. But the casks provide such good shielding that each of the humans standing in the foreground is probably receiving a bigger radiation dose from the radioactive potassium atoms disintegrating by the thousands every second in their own and others’ bodies.

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Ashes to ashes: the easily traceable dust of Ontario nuclear energy

by Stephen E. Aplin • December 17, 2014 • 3 Comments

Hamlet ponders fluid dynamics. If he were holding a nuclear fuel bundle instead of Yorick’s skull, Hamlet’s imagination would have no trouble tracing the bundle’s passage through the cycle of inception to interment. That is because the bundle is as scrupulously managed, documented, and accounted for as Yorick’s skull. We could not say the same about fossil-generation waste.

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Orion, thunderstorms, and thousands more: how has life on earth thrived under constant gamma-ray bombardment?

by Stephen E. Aplin • December 15, 2014 • 8 Comments

Orion, the most prominent winter asterism in the northern hemisphere. Just above his “head” is the Crab Nebula, a supernova remnant at the heart of which is a pulsar which has produced the most intense gamma-ray flares ever recorded.

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Ripoff in realtime: is wind power really worth it?

by Stephen E. Aplin • December 3, 2014 • 4 Comments

Right now, the 27 wind farms in Ontario are generating roughly 2,000 megawatts of power. Wind power proponents are applauding: this is one of the very rare moments when the “capability” of the wind fleet has been as high as…

by Stephen E. Aplin • December 3, 2014 • 0 Comments

Among the top ten countries of the world in terms of total primary energy supply (TPES), four—Germany, France, South Korea, and Canada—are nowhere even near the top ten in terms of population. And of the six that are in the…

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**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
2,809	8,873
130.29	411.58
Tons CO₂ CIPK, grams If gas had replaced nuclear last hour, Ontario power plants would have dumped enough CO₂ to fill Rogers Centre 3.1 times. As it was, 2,809 tons were dumped, which would fill Rogers Centre 1.0 times.

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