The global push on coupling “battery storage” with wind generation to achieve “zero-emissions” appears to be a ruse to increase revenue for IWT owners while upping electricity bills for ratepayers.
Evidence of the foregoing was obvious when Brookfield Renewable, via their subsidiary, Evolugen, disclosed they are trying to get Ontario’s Ministry of Energy to allow them to build the 161 MW Timberwolf Battery Storage System next to their existing 189 MW Prince Wind Farm.
The following will hopefully explain how Brookfield are doubling down to raise revenues at the expense of us ratepayers! Reviewing IESO (Independent Electricity System of Ontario) data for August 22nd provides a brief overview on how the above will be accomplished.
IESO data on generation for the first seven (7) hours of August 16, 2022 disclosed Ontario’s IWT generated 6,961 MWh which would have earned IWT owners $939,735 at the contracted price of $135/MWh.
If one examines the market price (HOEP) over those same hours the average price IESO sold surplus power into the market was $30.44/MWh suggesting the 6,971 MWh costing ratepayers $939,735 may have generated $211,893 from their sale; a net-cost to ratepayers of $727,842 for surplus generation.
If the battery storage owners purchased the above 6,971 MWh at the market price over those seven hours ($211,893) and sold it back over the next 10 hours as Ontario’s demand climbed and the HOEP price averaged $116.93/MWh they could have generated $783,314. Had the latter occurred those 6,961 MWh in the seven hours would cost ratepayers of $1,511,156 ($939,735-$211,893+$783,314) ie; $216.77/MWh or 21.7 cents/kWh.
It is worth pointing out over the balance of the day (the 17 hours remaining) those IWT generated a total of 6,699 MWh or an average of only 8% of their capacity (another $904,365 cost) but in the first seven hours (when they were unneeded) they operated at 20.3% of their capacity!
IWT perform poorly in the warm summer months but normally generate at a much higher level in the Spring and Fall when demand is much lower so the opportunity to double-down on generating a greater return by battery storage during those seasons would surely drive-up costs for ratepayers.
The other issue associated with the costs rising is our natural gas plants would be confined to less generation. Many of those natural gas plant contracts guarantee them their capital costs at the rate of $10K per month per MW of capacity and when operating; they charge for the price of gas used and a small additional cost per kWh. That $10K per MW of capacity will continue but ratepayers will forego the cheap cost of what they would normally produce offsetting the failure of wind and solar to power up for high demand. Those gas plants would however still be needed as battery storage at this stage; is only available for a maximum of four (4) hours whereas gas plants can ramp up and down at any time.
We ratepayers should hope the politicians and bureaucrats responsible for managing the electricity system in the province recognize the real reason for the Bloomfields of the world pushing battery storage to augment their revenue from their wind and solar farms.
Further enrich the rich while harming the poor and middle class!