The charts above show the actual daily total wind farm production starting on Aug 14, 2007. See below for my notes on how I figured the numbers.

STARTING NOTES (Aug 2007)- The chart includes the 4 major wind farms now in operation in Ontario - Melancthon 1(aka Amaranth), Kingsbridge 1, Port Burwell and Prince Farm. These 4 farms account for 396 of the 416 mw currently installed and operational in Ontario, and are the only ones reported by the IESO. The production numbers are the mw-hrs for each day, out of a possible 9504 [24 * 396], followed by the percentage of rated output. At the bottom is the total percentage for the month.

UPDATE #1 (Nov 2007) - Ripley South is the fifth major wind farm in Ontario, and in the last week of November 2007 it started producing power into the grid. I assume it will be coming online gradually as turbines are placed into service, and so far I've adjusted the numbers to ignore it's partial input. Starting in December I will add it's capacity (76mw) and production into my numbers. This will likely unfairly lower the utilization numbers for a short while. So the total daily capacity is now 11328 mw-hrs [24 * 472]. Ripley update - by the middle of December they looked to be running at full capacity, so the "short while" was quite short indeed.

UPDATE #2 (Jun 2008) - Port Alma and Underwood (aka Kincardine) have been added to the IESO report, but I don't think they are anywhere close to coming online. So my numbers will continue to include just the 5 farms that are actually in operation.

UPDATE #3 (Jul 2008) - Port Alma, the sixth major farm, started generation in the second week of July, but the numbers were quite low. I included them in the totals for July, but I didn't increase the capacity. Thus my production percentages are slightly higher than they should be. I suspect for August I'll be adding Port Alma's capacity (101mw) to the existing 472mw, for a new Ontario daily capacity of 13752mw-hrs [24 * 573]. Underwood, the seventh major farm, shows no sign of any production yet.

UPDATE #4 (Aug 2008) - Port Alma looks to be in substantial, perhaps complete, operation. So I am including it's production and capacity in the numbers for August. The new daily capacity for the six active projects is now 13752. Underwood is still not producing anything, and is not included in the capacity.

UPDATE #5 (Sep 2008) - Amaranth (Melancthon) has had 99mw added to its capacity, bringing the nominal Ontario capacity to 870mw. For now I'm sticking with 573, as there's no indication that either Underwood or Amaranth 2 is in operation yet.

UPDATE #6 (Nov 2008) - Amaranth 2 looks like it has come at least partially online as of the end of November. As I didn't increase the capacity, my utilization numbers are thus slightly high. For December, the capacity will be raised to 705, or 16920 mw-hr/day. Still no signs of any power from Underwood/Kincardine.

UPDATE #7 (Dec 2008) - Underwood started producing power mid-December. My best guess is that about half of the farm was online during the last half of the month. So starting Dec 13 I'm raising the capacity to 805mw, or 19320 mw-hr/day. I'll be looking at Underwood's numbers in January and as soon as it appears to be fully operational, I'll add the remaining 98mw to the capacity, raising the total to 903mw, or 21673 mw-hr/day.

UPDATE #8 (Feb 2009) - On Jan 23 the IESO reduced Underwood's capacity from 198mw to 182. I had been using an assumed 100mw in place of the 198 because it didn't look like they were in full production yet. But as of the 23rd it appears that their capacity may really be 182, so I'm raising the total Ontario capacity to 21288 on the 23rd. Wolfe Island is the next big project to come online. It has just been delayed until June 2009 so hopefully there will be no major changes in the capacity for several months.

UPDATE #9 (Jun 2009) - On May 25th Wolfe Island finally was added to the report, but its capacity is simply whatever it produced. So for now I am continuing with the 21288 capacity number, and pulling WI's contribution out of the numbers. When it looks like WI is in full production I'll use its nameplate capacity regardless of what the IESO is showing. I have no idea why they suddenly changed the way the capacity is calculated.

UPDATE #10 (July 2009) - I pulled Wolfe's production out of June's report. It has been producing for 5 weeks and I'm going to consider it in full production starting with July. The capacity is being raised from 887mw to 1085mw, and the daily production capacity is raised from 21288mw-hr to 26040mw-hr.

UPDATE #11 (November 2009) - I normally would also be posting the October Ontario generation report about November 1, but I had noticed some problems with the numbers and called the IESO. I found out that the IESO reports I was using are preliminary, and thus maybe not accurate. I must thank them, and especially Peter, who prepares these numbers, for taking the time to explain how they are created. So from now on I'll use the corrected numbers, but that will slow down the reports by about 2 weeks. I'm not going to go back and fix past numbers, as the differences are minor, and I hadn't noticed any problems with any project except Wolfe Island.