Ontario summer day means low power demand, high costs for consumers

A windy, sunny August day: sounds nice? In Ontario, that costs you. [Photo: Dorothea Larsen]
August 5 2017 was an interesting day: the wind was blowing and the sun was shining, in part of Ontario, anyway.

Unfortunately for Ontario ratepayers that weather will cost them a lot of money.

Why? The cost stems from the fact Ontario’s demand for electricity on that day was only 317,000 megawatts (MWh),* according to the IESO Daily Market Summary, probably due to conservation efforts and mild temperatures.  Low demand doesn’t save money: in fact, it will cost Ontario ratepayers millions of dollars due to bad management of the electricity sector by the current government.

I was curious about this windy, sunny day, which led me to contact Scott Luft, a master at using IESO data to give us a real picture of market demand and its costs.  Scott occasionally produces “Daily Ontario Supply Estimates” which provide a picture of both our demand and generated sources, what it cost, how much was exported, how much was curtailed/spilled (wasted), etc., and even how much of the costs were picked up by Class B ratepayers versus Class A.

Scott also estimates curtailed wind, spilled hydro, etc., using a conservative approach; they are generally confirmed months later by IESO.

Scott’s daily estimate for August 5, 2017 confirmed my suspicions!   Emissions-free nuclear and hydro generators alone supplied the 340,000 MWh of power Ontario needed easily, even exceeding Ontario demand by 23,000 MWh.  The cost of that generation was $21.1 million. After allowing for the value of the surplus 23,000 MWh as exports at the average hourly Ontario energy price (HOEP) of $4.94/MWh the cost per MWh comes to $66.34/MWh or 6.6 cents/kWh.**

Double the cost — and you’re paying it

Part of Scott’s daily estimate includes additional costs in the form of all the other generation sources, plus curtailed wind and solar, spilled hydro, biofuel and idling costs of gas plants. When those are added to the $21.1 million of nuclear and hydro, the price billed to ratepayers for the day jumps to $37.8 million — $119.24/MWh or 11.9 cents/kWh.  The Class A to Class B subsidy results in the cost per kWh for the “B” Class (that’s you and me) jumping to $131.10/MWh or 13.1 cents/kWh.

The other generation sources on Scott’s August 5 daily estimates include transmission (TX) and distributor (DX) connected generation, along with curtailed/idled, etc. costs with gas at 9,123 MWh (cost $4.1 million), wind at 49,088 MWh (cost $6.3 million), solar at 13,002 MWh (cost $6.1 million), biofuel at 701 MWh (cost $368,000) and imports of 8,563 MWh (cost $52,000).

The costs to you are mounting

Are you with me so far? What this means is, those other generation sources (including curtailed wind, etc.) of 85,000 MWh cost $16.7 million — $196.47/MWh or 19.5 cents/kWh) and are billed to … you, Ontario’s ratepayers.

Approximately $8.1 million of the day’s costs will be allocated to the Fair Hydro Plan and wind up on future electricity bills. If August 5 was a typical day, the amount kicked down the road for the next four years by the Premier Wynne-led government will amount to $3 billion annually (plus interest).  (The $8.1 million estimate for this day comes from the use of what is referred to as the “Global Adjustment Modifier” set by the OEB at $32.90/MWh from July 1, 2017 to April 30, 2018 and will be reset at the later date. The $8.1 million was obtained by simply multiplying Class B consumption — 246,000 MWh — by the $32.90 “Modifier”.)

Mismanagement of the energy portfolio by the Wynne-led government on August 5 generated a cost for Class B ratepayers that was excessive. It will continue, and lead to an explosion of households living in “energy poverty”*** when the Fair Hydro Plan comes to an end in four years.

The Minister of Energy needs to recognize the problems caused by intermittent and unreliable renewable energy!  Once he understands the latter he should immediately cancel any wind and solar contracted projects that have not commenced construction, along with any in the early planning stages.

Kicking the can down the road via the Fair Hydro Act is anything but fair. Paying twice for non-emitting clean energy simply amplifies the bad management this portfolio has received from our government.

Parker Gallant

August 11, 2017

*   Some of the above MWh references are rounded to the nearest thousand.

** The 6.6 cent rate, coincidentally, is close to our new off-peak rate of 6.5 cents/kWh (previously 8.7 cents/kWh) which came into effect July 1, 2017. The lower rate is a result of the “Fair Hydro Plan” instituted by the Premier Wynne that kicked 25% of the costs down the road for four years.  The Off-Peak rate back on May 1, 2007 was 3.2 cents/kWh so even after the recent reduction it is still up over 103% in the last 10 years.

*** Energy poverty is generally defined as utilizing 10% or more of a household’s disposal income to pay for their electricity and heating needs.


Free power for a month for 4,000 Ontario families? Here’s how we missed that

How many homes could have benefitted from the excess power Ontario wastes, or sells off cheap?

Recently reading comments on an article related to the cost of wind power generation in Ontario, I was struck by a simple message.

The commenter had obviously visited the IESO “Data Directory”  and reviewed one item labeled Intertie Flows; he observed that IESO had exported 3,000 MWh (megawatt hours) in an hour.   He then observed that the exported power could have supplied 4,000 homes with free power for a month.  (Here’s the math: 3,000 MWh equals 3 million kWh; the “average” Ontario household consumes 750 kWh per month, so divide the 3 million by 750 and the answer is 4,000.)

This simple fact has not been picked up on by the media and yet, it is an easy way to shed more light on Premier Wynne’s “mistake” and our rising electricity rates.   The commenter also suggests going further and examining a full quarter to determine how many Ontario households would benefit from no exported power.

Excess wind and solar costs us

To be fair, while Ontario has frequently exported 3,000 MWh, we also import electricity generated elsewhere presumably at similar market prices. Those net exports or net imports (very infrequent for Ontario) are contained in the Intertie* hourly reports posted by IESO. Let’s look at the first three months of the current year.

To begin, IESO’s Monthly Market Reports for January, February and March of 2017 indicate Ontario’s “average net intertie schedule” for the first quarter of the current year totaled 2,909,000 MWh. While that was happening, industrial-scale wind turbines were generating over 3.9 million MWh in the same three months, and were also required (by IESO) to curtail (and be paid for) another 536,000 MWh.  So, the wind power developers picked up about $620 million for those three months.

To make matters worse, the average of the Hourly Ontario Electricity Price (HOEP) received (via the traded market) over those three months was only $22.72 per MWh or 2.27 cents per kWh.   That means Ontario received $66.1 million for the sale of the 2.9 million “intertie” MWh, while the average cost paid by ratepayers at 11.1 cents/kWh means the cost of those exports was almost $324 million.

Reducing power bills by 25% is peanuts—kill the contracts

Let’s go farther: if 1.3 million (28% of all residential households) of Ontario’s average ratepayers could have purchased those net exported kWh over the three months at the same price they were sold for, the 2250 kWh they consumed would have cost them $51 instead of the $250 they were billed. That would have reduced their cost of electricity by 390%. That makes Premier Wynne’s supposed 25% electricity bill reduction pale in comparison.

If the Premier really wants to lessen the burden on future ratepayer bills she should immediately cancel any wind and solar contracts that have not broken ground, and suspend any all future procurement of these unreliable and intermittent generation sources.


*Intertie is defined as an interconnection permitting passage of current between two or more utility systems.