Demand in November was very low, but almost identical to demand the previous month. The main electricity rate in Ontario is the Class B commodity rate comprised of the weighted Hourly Ontario Energy Price (HOEP) and the Class B global adjustment rate. It rose 23% from October to November. This makes a comparison of October and November very compelling.
The rate was the highest because data shows Ontario spent more on generation, and whatever else the system's operators felt related to generation, than any previous month.
There's been a lot of words about Ontario's electricity costs following the latest annual report from the Auditor General of Ontario, most from men in Ontario's electricity establishment claiming the female Auditor was unfair in noting the growth of the global adjustment. Today I am looking at the global adjustment only to estimate the total spend on electricity generation - and whatever else the system's mandarins feel is related to electricity generation - each month.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjcCxkcFvJllLGzsZLxEvtre0akqDYXvRk0KJl_R2tBaEW0yhfgHyUaNPlwVA189-EpMRe5CybEg-q1Dy42K-kl_sa3hxHd-L6yZenHjRcgfxVRUYoOUym84PHPohdiKuok0lRIkS5eP60a/s640/image+%252818%2529.png)
The graph's message is clear: total supply cost is rising. In November, Ontario spent more on electricity supply than ever before, despite demand levels near lows. Note the chart runs 49 months: November 2015 total supply cost is 53% higher than November 2011, while "Ontario Demand", as defined by the IESO, is down.[1] I don't want to dismiss the fact the price increase is seen entirely as a rise in the global adjustment, as that has very important cost implications in distributing system costs disproportionately across consumer segments. One result of growth entirely being in the global adjustment is the rise in the main, Class B, commodity rate is 77% over the 49 months - 24% higher than the increase in total systemic supply costs.
Why did the system's costs rise $240 million from October to November?