Battery Storage Would Cost Ontario Billions to Replace Natural Gas Generation on December 20, 2022

Ontario’s Minister of Energy, Todd Smith should think seriously about December 20^th and contemplate; if we were without natural gas generation, how would the province have avoided blackouts?  What would we need to have in place to provide the 124,792 MWh (what 4.1 million average Ontario households consume daily) our gas plants supplied on that December day?

More wind, more solar?  If he picked those two intermittent and unreliable sources, we would need a multiple of at least five times current capacity. Even then, if they only generated five times the 232 MWh, they did at Hour 3, we would have experienced a blackout in the middle of the night during a low demand hour. Natural gas generators at that hour produced 4,003 MWh (26.8% of demand).

Throughout the day grid connected wind generated about 21,000 MWh and solar 547 MWh. At peak demand, Hour 18 ending at 6 PM, wind generation neared its peak for the day generating 1,341 MWh (6.8% of demand) whereas our gas plants generated 6,033 MWh or 30.4% of peak demand. Because demand was relatively high and wind failed to generate less than an average of 900 MW per hour the market price (HOEP) averaged $82.88/MWh over the day so the 39,000 MW we sold to our neighbours in NY, Michigan and Quebec generated a reasonable price compared to days when the wind is blowing hard and the sun is shining.

If Smith said hydro, it would be sensible, however Ontario has pretty well exhausted its hydro sources near population centers so that’s not an option. We would need to open up the northern reaches of the province and spend billions of tax dollars to build roads, transmission systems and the hydro plants themselves to get the power to where its needed. Not feasible for well over a decade!

Nuclear would be a good and logical source, however the only possible new nuclear we might get in the next 10 years is a 300 MW capacity SMR (small modular reactor) now in the planning stage by OPG.

What’s left then for him to contemplate is either hydrogen or storage. The former is still in early test stages and unlikely to be scaled up for a decade or more. Despite the foregoing the push for it by many European countries is on as they view it as the solution to achieving “net-zero”.  The big concern about hydrogen is associated with possible leaks as a recent article noted: “Scientists have warned that hydrogen could be a significant “indirect” contributor to the greenhouse effect when it leaks through infrastructure and interacts with methane in the atmosphere.“

One should wonder does Minister Smith have a belief “storage” is the option and if so, how much will be needed?  In the near term he seems to have somewhat recognized the fallibility of our electricity system as his Ministerial Directive of October 6, 2022 directs IESO to secure a minimum of 1,500 MW of storage generation and a maximum of 1,500 MW of natural gas generation.  On the former he had already directed IESO to negotiate a 250 MW battery storage contract with Oneida on August 27, 2022 despite the need for a cost/benefit study as noted in a earlier article.

Minister Smith had also asked IESO to prepare a plan to allow Ontario’s electricity system to be fully “decarbonized” by 2050 and in their response titled: “The Pathways to Decarbonization” they included 2,507 MW of storage capacity in 2035.

The full costs of that capacity will be in excess of $2.4 billion based on a recent well researched article suggesting battery costs are a minimum of US$700K (CA$950K) per MW of capacity. Battery storage capacity results in about only 80% of it as being available when it’s needed on the grid, but, it can deliver the rated capacity for three hours.  That means 2,507 MW of battery storage at a capital cost of $2.4 billion could deliver approximately 6,000 MWh before having to reload.

Now, if we consider the generation provided by Ontario’s natural gas plants on December 20, 2022, one notes we would need twenty-one times more battery storage to generate the almost 125,000 MWh they delivered. The capital cost would be astronomical and amount to about $50 billion. Repaid over the 10-year lifespan of the batteries (including a profit margin of 10%), it would result in adding $5.5 billion of annual costs to ratepayer bills. 

What the IESO chart suggests is natural gas capacity coupled with; “New Capacity Online by 2035” in the form of; Demand Response, Solar, Wind and new Nuclear, we will not need additional storage.  Let’s hope their forecast is accurate despite the “Disclosure” on Page 2 stating:

“The information, statements and conclusions in this report are subject to risks, uncertainties and other factors that could cause actual results or circumstances to differ materially from the report’s findings. The IESO provides no guarantee, representation, or warranty, express or implied, with respect to any statement or information in this report and disclaims any liability in connection with it.”

The 2035 scenario depicted by IESO also contained the following suggesting they had some faith in part of their report: “New large hydroelectric and nuclear facilities were not selected due to lead times that extended beyond the horizon of this scenario. As firm imports from Québec would require resource development in that province, they proved to be costly and were also not selected. Finally, with 2,500 MW of battery energy-storage systems included in the base supply mix, the value of additional storage diminished, hindering its selection.“

Hmm, kind of makes one wonder if the “Pathways” report is delivering what Minister Smith has in mind?

An article written by Allison Jones of the Canadian Press and dated December 26, 2022 reputedly confirmed Minister Smith’s directive to IESO to obtain the additional 1,500 MW of natural gas generation along with the “2,500 megawatts of clean technology such as energy storage”. The article went on to claim, “Smith said in an interview that it’s the largest active procurement for energy storage in North America.“ Another quote in the article came from Katherine Sparkes, IESO’s director of innovation who apparently said: 

“As we look to the future and think about gas phase-out and electrification, one of the great challenges facing all energy systems in North America and around the world is: How do you address the increasing amounts of variable, renewable energy? resources and just make better use of your grid resources,” she said.

“Hybrids, storage-generator pairings, give you the ability to deal with the variability of renewable energy, meaning storing electricity when the sun isn’t shining or the wind not blowing, and then using it when you need it.” 

We ratepayers should all be troubled if the foregoing is a quote from IESO’s director of innovation! In that position she should know if the sun isn’t shining, or the wind isn’t blowing there is no energy that can be stored! 

On the other hand, if it’s a misquote by the author of the article, its what we have come to expect from the MSM reporters who seem to frequently fail to do any fact checking. The latter is evident in other parts of the article where obtuse comments are made and accepted with one of them suggesting their company will “make power plants obsolete” using EV and another suggesting “the provincial and federal governments need to fund and install bidirectional chargers in order to fully take advantage of electric vehicles.” No indication was in the article as to what sources of energy would be used to power up those EV batteries nor does the author question those making the statements.

It is readily apparent the author of the article failed to either question those interviewed or to seek other views that might challenge their claims.  Unfortunately, investigative journalism is no longer within the purview of those associated with the mainstream media.

Conclusion

Natural gas is a fossil fuel that benefits mankind in many ways and the cold December day we Ontario residents recently experienced clearly demonstrated how it is needed until something better comes along. It is self-evident the “something better” is clearly not battery storage.

Let’s turn up the heat on our Ministry of Energy and the many reporters in the media who message us with the propaganda perpetrated by those who want us to freeze in the dark!