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Ontario, Canada, to Create Ultra-Low Overnight Rate

carbon60

carbon60

Solar Enthusiast
Joined
Jan 8, 2021
Messages
236
Location
Ottawa
I thought this was an interesting turn of events:

Ontario Newsroom

news.ontario.ca news.ontario.ca

I believe the goal is to reduce the capex required to accommodate EV charging, but it may also have other effects. In fact, if power use during the day moves to overnight, wouldn't that reduce investment in PV?

For comparison, Ontario's current rates are listed here:

Electricity rates | Ontario Energy Board

As part of our mandate, we set the rates that your utility charges for the electricity you use in your home or small business. These rates appear on the Electricity line of your bill. We also set the Delivery rates that cover the cost to deliver electricity to most residential and small business...
www.oeb.ca www.oeb.ca
 
Southern California Edison just did the opposite. I liked selling solar during peak afternoon prices and using the grid heavy at night.
Expanding utility scale solar creates a mid-day surplus of power.
 
Finally that dork Ford has finally capitulated towards the future.
Remember, this premiere is the fool who spent 250 Million to tear down a Windfarm that was being installed !
He is also the dimwitt that decided to dump another 35 Billion into Darlington & Pickering Nuclear Fiasco's (which still have nowhere to dump the nuke waste).. And do not forget that he completely PooPoo'd Grid Storage Systems in favour of idling Wind & Solar.

There is a Provincial Election coming so time to "Make a Nice Poster Boy" with lots of Greenwash !
(Lime wash with green food colouring)...
 
If you have ESS your golden, load shift, and never pay the on-peak rate ever. Heck you don't even need any PV for this.
If your the average Ontarioian - well yeah they set this up to encourage EV charging overnight, and for many they will just pay for it during the higher on-peak 4-9 pm the next day.
Those rates don't include the 'delivery' charges, or the premium for using more than the daily threashold amount.
edgecrusher said:
And the ULO rates are coming May 1!

Historical electricity rates | Ontario Energy Board

On this page:
www.oeb.ca www.oeb.ca

2.4c/kWh 11pm-7am
but... 24c/kWh 4pm-9pm
Click to expand...
'
 
Yeah, I've got a 24V solution with some solar (about 1.9kw) - about 3.6kWh of storage. Mostly using it to offset freezers/fridges/computers.

I do have 2 EV's, so looks to make sense. Only challenge is the central AC, which I need from 4-9pm... don't think my 24V system can offset that....

What's the daily threshold, havn't found that yet?
 
I think to be able to really take advantage of the Ultra Low rate, you would need a system able to supply all you significant loads for that 4-9pm Mon-fri period. IIRC with this new tier, you also have mid-peak rates during the weekends, which on the current system are all off-peak rate 7.4C plus delivery and regulatory charge.
I don't recall what the monthly threashold energy amount is, 750kWh or 1,000kWh (or similar) but I know if you exceed it, then you pay more on top of the regular rate.
 
OffGridForGood said:
I think to be able to really take advantage of the Ultra Low rate, you would need a system able to supply all you significant loads for that 4-9pm Mon-fri period. IIRC with this new tier, you also have mid-peak rates during the weekends, which on the current system are all off-peak rate 7.4C plus delivery and regulatory charge.
I don't recall what the monthly threashold energy amount is, 750kWh or 1,000kWh (or similar) but I know if you exceed it, then you pay more on top of the regular rate.
Click to expand...
Currently the rates for the ULO weekends are 7.4c, which is the same as the off peak regular TOU pricing.

The mid-peak ULO (7am-4pm, 9pm-11pm) are the same as the TOU mid-peak (10.2C)

So basically, yes - if you can shift a significant amount of peak usage (from 4pm-9pm) Mon-Fri, then you are going to be better off.

In my situation, primary load 4-9pm is really only central air (if I even run it). Maybe the range/oven, but that's pretty minimal. Just make sure to run the dryer starting at 11pm when you charge the cars.... Guess I should look into a service upgrade as I only have a 100a main breaker.
 
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