The secret is out: wind power costs plenty

This past weekend’s stats are not kind to the wind power cheerleaders

The wind power trade association, the Canadian Wind Energy Association or CanWEA, uses every opportunity to push for more wind power development, and often uses “selective facts” to promote their claims.   One of the latest relied on investment firm Lazard by stating:  “A December 2016 report from the U.S. investment firm Lazard found that wind energy is the lowest cost option for new supply in the United States without any subsidies. Wind energy costs continue to fall, offering an attractive electricity source to provinces seeking to clean and diversify their electricity systems.”

That statement is included in CanWEA’s recently released brochure “The Secret is Out, Wind is in”.

Had the unknown author(s) at CanWEA simply looked at the Ontario Energy Board’s (OEB) semi-annual Regulated Price Plan they would have noted Table 2 on page 21 of the April 20, 2017 report that the cost of a wind-generated kilowatt hour (kWh) in Ontario is shown as 17.3 cents ($178/MWh), as the cost of “curtailed” (not added to the grid) wind is also included as a cost input.

Had the author(s) also simply looked at IESO data they might also have noticed that maybe wind energy costs are not continuing to fall!   Saturday, November 25th was an example: it was a very windy day in Ontario with an especially windy night. Unfortunately for the wind power cheerleaders, our demand for power from 12 AM until 7 or 8 AM was relatively low, but the wind was really blowing. That meant the 4,200+ MW of wind capacity were running at 90% (approximately) of their capacity, at the same time as Ontario’s demand for power was hovering mid-way between 11,000 and 12,000 MW. That’s very close to what our nuclear plants can provide on their own without help from other generation sources.

As a result, IESO ordered wind’s curtailment, hydro’s spilling and nuclear steam-off. At the same time, they were exporting whatever the market would take.

So, all together on November 25, the IESO curtailed 35,600 MWh of grid-connected wind and accepted 30,600 MWh into the grid, while scrambling to prevent brownouts or blackouts by exporting about 50,000 MWh over the day.

Industrial-scale wind power developers get paid $120/MWh for curtailed wind and $135 MWh for grid-accepted wind.

Quick math on all that means:

Ontario’s ratepayers picked up the costs of almost $8.6 million for curtailed and grid-accepted wind power produced when it wasn’t needed.

The cost of the grid-accepted wind (30,600 MWh) was therefore just over $280/MWh or 28 cents per kWh or, 10.7 cents more than the OEB reported back in April. On top of that, we ratepayers also ate the costs of spilled hydro, steamed off nuclear and the losses on the 50,000 MWh exported at a price close to zero.

Now if that author or authors who cranked out the latest CanWEA “selective facts” brochure were brutally honest, they would immediately change the title to:

“The Secret is out: wind is horribly expensive, intermittent and unreliable!”

Advertisements

Wind: worst value for Ontario consumers

The wind power lobby continues to claim power from wind is great value and contributes to “affordable” electricity bills. But the facts of October tell a different story.

Ontario turbines near Comber: not helping

Right after Ontario Energy Minister Glenn Thibeault released his version of the LTEP (Long-Term Energy Plan), “Delivering Fairness and Choice,” CanWEA (the Canadian Wind Energy Association) issued a news release with the following statement:  “New wind energy provides the best value for consumers to meet growing demand for affordable non-emitting electricity.”

To back up that claim, CanWEA president Robert Hornung had this to say: Ontario’s harnessing of wind power can help fight climate change while keeping electricity costs low. Without new wind energy, costs to electricity customers and carbon emissions will both continue to rise.”

Brandy Giannetta, CanWEA’s Regional Director for Ontario also had a quote: “CanWEA supports competitive, market-based approaches to providing flexible, clean, and low-cost energy supply, to meet Ontarians’ changing needs.”

The expression “I wish I had a dollar for every time I heard that,” immediately comes to mind but here’s the truth: industrial-scale wind turbines have failed miserably in producing anything resembling “low-cost” energy and is instead one of the reasons consumers’ electricity bills “will continue to rise”!

If Hornung and Giannetta had waited just five days, they could have visited my friend Scott Luft’s spreadsheet and noticed how wind performed in October.   They would have discovered it was pretty dismal: 37.9% of possible grid-connected (Tx) wind power generation was curtailed (paid for but not used).  

The IESO (Independent Electricity System Operator) was concerned that too much wind power generation could cause repercussions such as a blackout or brownout, so 481,243 MWh (megawatt hours) were not accepted throughout the month. However, Ontario’s ratepayers will still pay for those undelivered MWh at a cost of $120 each, meaning the GA (global adjustment) increased by $57.7 million (481,243 MWh X $120. = $ $57,749,160).

Add that $57.7 million to the 787,627 MWh of the Tx  generation accepted into the grid, the total costs rise to $165 million or $208.32/MWh — the equivalent of 20.8 cents/kWh (kilowatt hour).   (That calculation is 787,627 X $135/MWh = $106,329,645 + $57,749,160 = $164,978,805.  Simply divide the latter amount by the Tx accepted generation and you get the $208.32 MWh or the 20.8 cents/kWh.)

It is important to note that the costs calculated and reported here do not include the transmission charge, delivery charge, regulatory charge or the HST.  Additionally, another 158,609 MWh of wind were delivered to local distribution companies (Dx) at a cost of $135/MWh, bringing IWT costs for the month to $185 million — for power we didn’t need.  No doubt during the month we were also steaming off clean nuclear power from Bruce Nuclear and spilling clean hydro power from OPG’s hydro generation units. In both cases the cost of the steamed off nuclear and the spilled hydro will be added to the Global Adjustment pot and find its way to our future bills.

I hope Mr. Hornung and Ms Giannetta will rethink their claims and simply admit wind power generation is high-cost, and frequently displaces low-cost non-emitting nuclear and hydro power.

You can’t hide October’s facts!

 

Ontario’s fond hopes for wind power dashed by reality

Ontario’s energy minister will likely crow about the $146 million in revenue from selling surplus power recently … too bad it cost consumers $892 million

 If you visit the Canadian Wind Energy Association (CanWEA) website, the first page has the message:  “Wind is delivering clean, reliable and low-cost electricity”.  Anyone following my recent postings on how wind has either delivered almost no power or way too much, may have a different view.  You can also find this homily in the Energy Ministry’s just released 2017 Long-Term Electricity Plan, Delivering Fairness and Choice: “Wind power is also being produced more efficiently,” which distorts the truth!

Recent facts:

One day of wind power

Tuesday October 24, 2017 was a day when the wind was blowing strongly for 24 hours. IESO had forecast the approximately 4,220 MW of Tx (transmission-connected) capacity could have delivered 88,200 MWh of generation, meaning they would operate at over 86% of capacity.  Using that capacity value for the 580 MW of Dx (distributor-connected) turbines, another 12,080 MW were no doubt being generated at the same time — that meant almost 30% of Ontario’s total demand could have been supplied by wind.

As it stands, however, Ontario’s demand suggested we didn’t need all that power so IESO directed Tx connected turbine generators to curtail over 52,000 MWh. So, that same day, Ontario exported 40,300 MWh of free power to New York and Michigan, 11,700 MWh less than IESO curtailed.

The delivered and curtailed (paid for but not delivered) wind power on October 24th that wasn’t needed cost Ontario ratepayers $13.5 million or $280.60/MWh (28.1 cents/kWh).  If that happened every day the annual cost to Ontario’s ratepayers would be in excess of $5 billion.

Nine months of wind power

Let’s look at the nine months starting January 1, 2017 to the end of September and see what wind has contributed — and cost — Ontario ratepayers.  In the first nine months of 2017, industrial wind turbines could have produced about 9,820,000 megawatt hours (MWh) from Tx and Dx connected capacity — if curtailed generation was included! IESO however, forced curtailment of over 2,209,000* megawatt hours (MWh) or 22.5% of forecast generation to avoid compromising our grid and causing blackouts or brownouts.  Ontario ratepayers picked up the cost of curtailed power at $120 per/MWh costing them more than $265 million. The grid-accepted wind (7,620,395 MWh) cost; at $135/MWh added to the cost of curtailed wind brought the cost to ratepayers to almost $1.3 billion and more than $170/MWh (17cents/kWh). We would note when wind generation is high, IESO frequently instructs OPG to “spill water” and Bruce Nuclear to “steam off” power. Ratepayers also pick up those costs.

Nine months of (net) exports

From January 1, 2017 to September 30, 2017, Ontario’s net exports (exports minus imports) were 9,058,008 MWh. Those net exports were sold at somewhere close to the HOEP or hourly Ontario electricity price which to the end of September averaged $16.15MWh, so net exports sales generated about $146 million in revenue.  The sale price does not include the GA or Global Adjustment (the difference between contracted or regulated rates and the HOEP), meaning Ontario’s ratepayers picked up the average GA costs to the end of September.  The GA averaged $98.48/MWh for the first nine months of the current year, so the 9,058,008 MWh of net exports cost Ontario’s ratepayers just over $892 million dollars!   That is the equivalent of almost $200 per average residential ratepayer.

And the year isn’t over.

To put those net exports in context, Ontario’s net exports represented slightly over 92% of both the curtailed and delivered wind generation in the first nine months of the year, yet we were burdened with the cost of $892 million dollars for them, along with the costs of wind curtailment of $265 million.

The foregoing makes CanWEA’s claim of “low-cost electricity” and the Energy Ministry’s comments about wind power “being produced more efficiently” look to be simply fond hopes!

 

 

* My thanks to Scott Luft for his ability to generate reliable wind data using IESO’s files.

Wind power: if this is “reliable,” get ready for lights out!

The wind power developers’ lobbyist/trade association is proposing a tripling of Ontario’s wind turbine capacity. What would that look like?

A June 5, 2017 article by Brandy Giannetta, the Ontario Regional Director at the Canadian Wind Energy Association (CanWEA), states that “Ontario could reliably integrate 16,000 megawatts of wind energy” . Later in the article, she says wind power would be “low-cost, emission-free and increasingly reliable”.

The 16,000 MW of wind capacity suggested in the article would more than triple the current 4,000 MW of grid-connected industrial wind turbines (IWT) and the 600 MW of embedded (approximately) capacity.   CanWEA just recently repeated this suggestion in a Tweet, so apparently the lobbyist/trade association thinks it’s a real idea.

Let’s see how “reliable” wind power is, right now.

It is important to look at the pattern of wind power generation.  In the four hours from 10 AM to 2 PM on September 12th , the grid-connected industrial wind turbine (IWT) capacity of 4,000 MW generated almost 340 MWh, according to the IESO’s Generator Output and Capability report of September 12, 2017.   During those four hours, Ontario demand totaled about 58,500 MW, so the 340 MWh delivered by wind turbines provided .58% of Ontario’s power demand — yet they represent 10.9% of Ontario’s grid-connected capacity of 36.563 MW!

It is hard to fathom how delivering just over ½ % of Ontario’s demand can be vaguely considered as reliable.   The full CanWEA article suggests tripling the current contracted industrial wind so that .58% delivered during those four hours would have generated 1.7% of demand over the same four hours.   Connecting the additional 10,400 MW to the grid would mean major expenditures (and by that I mean, billions of dollars) on the transmission system, while neglecting spending on truly reliable generation and the various parts of the transmission system that have been neglected.

It would also cost ratepayers for additional reliable back-up generation.

The CanWEA article also suggests wind at the 16,000 MW level would avoid “about $49 per megawatt-hour of production costs” if it supplied 35% of Ontario’s electricity demand.  If the four-hour experience of power generation on September 12 shows wind turbines would supply only 1.7% of our demand, it also demonstrates one thing clearly: the last thing we need in Ontario is more wind turbines, generating intermittent unreliable power!

Ontario’s ratepayers can’t afford any more wind.

Parker Gallant

September 12, 2017

CanWEA wants to “reap” more “benefits” from wind energy

The wind industry association claims wind power is the “least-cost” option. The numbers tell a different story [Photo: IESO]
The past few days presented a couple of conflicting news events that made you want to scratch your head in wonderment.

First was a CTV news item June 5 headlined “Wasted green power tests China’s energy leadership”. The article stated: “In western China’s Gansu province, 43 per cent of energy from wind went unused in 2016, a phenomenon known in the energy industry as ‘curtailment.’ In the neighbouring Xinjiang region, the curtailment figure was 38 per cent and in northeast China’s Jilin province it was 30 per cent. The nationwide figure, 17 per cent, was described by Qiao’s organization as ‘shockingly high’ after increasing for several years in a row.”  It went on to say: “The problem threatens to slow China’s progress in clearing its air and controlling the greenhouse gas emissions that make it the top contributor to climate change.”

A CanWEA blog (Canadian Wind Energy Association) by Brandy Giannetta, also on June 5,  was headlined:  “Adding more wind to the Ontario grid: no problem!”

Ms. Giannetta made these claims:  

“Ontario could reliably integrate about 16,000 megawatts of wind energy (which would be able to meet more than a third of electricity demand in the scenario studied).

The additional amount of electricity generation reserves required to back up that 16,000 MW of wind (beyond the reserve capacity already in the system) would be as small as 196 megawatts, or 1.2 per cent of the wind energy capacity.

Wind energy, which is now the least-cost option for new electricity generation available in Ontario, would avoid about $49 per megawatt-hour of production costs within the electricity system if it supplied 35 per cent of Ontario’s electricity demand.”

The claims made on the blog supposedly used information from a partially taxpayer-funded, three-year study released in July 2016 co-sponsored by CanWEA and Natural Resources Canada and carried out by GE Energy Consulting, a subsidiary of General Electric. (GE’s website claims  “Our portfolio of turbines feature rated capacities from 1.7 MW to 3.8 MW (Onshore) and 6MW (Offshore), we are uniquely suited to meet the needs of a broad range of wind regimes.”)  As one would expect there is a “legal notice” (disclaimer) at the start of the report which names CanWEA as their client.

Needless to say, the report is extensive but looking at the 62-page Section 1, Summary Report, I noted the following, suggesting CanWEA suggest the small “reserve capacity” of  only 196 MW is required to back up the 11,000 MW of new wind capacity and could be integrated:

“1.11.9 Reduced Reserves from Conventional Generation    — This sensitivity examined the impact of reducing the level of spinning reserves obtained from conventional generation resources (thermal and hydro). Instead the reserves could be obtained from demand response, storage devices, or other nonconventional resources. This approach could reduce curtailment during periods where conventional generation resources are dispatched to their minimum output limits.”

The suggested CanWEA small 196-MW “reserves” being all that would be needed is a huge “stretch goal” (to use a phrase once favoured by the ruling Ontario government) and highly improbable!  It suggests dispatching existing “conventional generation resources” will allow wind to contribute a lot more of its intermittent and unreliable generation.

The same section contained a stumbling block in respect to containing further cost increases as it notes: “Production simulation results show no significant reduction in curtailment. This indicates that the system is not constrained by the commitment of conventional generation units for reserve services.”

What that means is, curtailment will remain as is, as long as ratepayers pick up the costs of constraining conventional generation. It infers industrial wind generation be treated as “base-load” with “first to the grid” rights!   Somehow, CanWEA view the expensive: “demand response, storage devices or other nonconventional resources” along with dispatch of conventional generation as an unrelated cost ratepayers must pay for unreliable and intermittent generation from industrial wind turbines, yet they claim “wind is now the least-cost option”.  This appears to be CanWEA’s contribution to the “Fair Hydro Plan” kicking wind’s integration costs to the ratepayers bills!

Now with two conflicting perspectives about IWT curtailment from China and CanWEA, let’s look at recent Ontario history sourced from IESO and Scott Luft’s Monthly Wind data.

IESO reported in their 2016 Year-End Data they dispatched 2,244,230 MWh  “representing 19 per cent of the total amount of wind energy produced in the province.So, 2% more than China’s “shockingly high” amount garnered no attention in Ontario!   Dispatched wind in 2016 added approximately $270 million to the GA for undelivered power, and no doubt caused nuclear steam-off and spilled hydro adding additional costs to the GA pot.

Scott’s files contain TX (transmission connected) and DX (distributor connected) wind generation as well as what has proven to be relatively conservative estimates of “curtailed” generation. For the first five months of the current year, curtailed wind was 1,580,629 MWh, which represented 22.3% of grid delivered and curtailed wind. It looks like the current year will easily surpass the record amount dispatched in 2016 in MWh and percentage terms.

Combining the average costs of wind generated MWh along with dispatched MWh suggests an average cost of a kWh from industrial wind turbines for the first five months of 2017 was 17.5 cents /kWh and for May 2017 was 23.4 cents /kWh.

Those costs to Ontario ratepayers makes it relatively easy to understand Ms. Giannetta’s closing paragraph on her blog where the “we” in the following sentence suggests she is clearly speaking for the members of CanWEA!

“It’s increasingly obvious that we are only beginning to reap the benefits of wind energy in Ontario.”

© Parker Gallant

CanWEA gets it wrong on energy costs: university professor

University professor in engineering and environment says CanWEA guilty of “willful blindness”; quotes him incorrectly in statement on energy costs

Just a few days ago, I wrote that the Canadian Wind Energy Association (the trade association for the wind power industry, also known as CanWEA) posted a statement by its Ontario representative that people who say wind power is adding to Ontario’s electricity bills are misleading the public. Ms Gianetta referred to University of Waterloo professor Natin Jathwani to support her views.

Professor Nathwani e-mailed me in response to the claims made by Ms. Giannetta’s in her recent post on CanWEA’s website, which I repeated in “Wind power lobby myth buster is busted”.

Professor Nathwani’s email:

Dear Mr Gallant:

In your Blog, you have cited Ms. Giannetta’s post on CanWEA’s website on April 24, 2017 as quoted below:

Her article points to two articles that purportedly support the “myth” she is “busting,” but both require closer examination. She cites Waterloo professor Natin Nathwani’s, (PhD in chemical engineering and a 2016 “Sunshine list” salary of $184,550) article of March 6, 2017, posted on the TVO website, which supports Premier Wynne’s dubious claims of “a massive investment, on the order of $50 billion, for the renewal of Ontario’s aging electricity infrastructure.” Professor Nathwani offers no breakdown of the investment which suggests he simply took Premier Wynne’s assertion from her “Fair Hydro Plan” statement as a fact! It would be easy to tear apart Professor Nathwani’s math calculations — for example, “The total electricity bill for Ontario consumers has increased at 3.2 per cent per year on average” — but anyone reading that blatant claim knows his math is flawed!

First and foremost, the record needs to be corrected since Ms Giannetta’s assertions are simply incorrect and should not be allowed to stand.

If she has better information on the $50 billion investment provided in the Ministry of Energy’s Technical Briefing, she should make that available.

The breakdown of the investment pattern in generation for the period 2008-2014 is as follows:

Wind Energy $6 Billion (Installed Capacity 2600 MW)

Solar Energy $5.8 Billion (Installed Capacity 1400 MW)

Bio-energy $1.3 Billion (Installed 325MW)

Natural Gas $5.8 Billion

Water Power $5 Billion (installed Capacity 1980 MW)

Nuclear $5.2 Billion

Total Installed Capacity Added to the Ontario Grid from 2008-2014 was 12,731 MW of which Renewable Power Capacity was 6298MW at a cost of $18.2 Billion.

For the complete investment pattern from 2005 to 2015, please see data available at the IESO Website.

In sum, generation additions (plus removal of coal costs) are in the order of $35 billion and additional investments relate to transmission and distribution assets.

I take strong exception to her last statement suggesting that the 3.2 percent per year (on average) increase in total electricity cost from 2006 to 2015 in real 2016$. The source for this information is a matter of public record and is available at the IESO website.

Ms Giannetta’s assertion is complete nonsense because she does not understand the difference between electricity bill and generation cost. Let Ms Gianetta identify the “blatant flaw.”

As for the electricity bill that the consumer sees, there is a wide variation across Ontario and this is primarily related to Distribution.

The Ontario Energy Board report on Electricity Rates in different cities provides a view across Ontario:

For example, the average bill for a for a typical 750kWh home Ontario comes is $130 per month.

In Toronto it is $142, Waterloo at $130 and Cornwall at $106. On the high side is Hydro One networks is $182 and this is primarily related to cost of service for low density, rural areas.

Your Table 2 Total Electricty Supply Cost is helpful and correctly highlights the cost differences of different generation supply.

Only wilful blindness on Ms Giannetta’s part would suggest that wind and solar are coming in at a low cost.

Warmest regards,

Jatin Nathwani, PhD, P.Eng

Professor and Ontario Research Chair in Public Policy for Sustainable Energy Executive Director, Waterloo Institute for Sustainable Energy (WISE)

Faculty of Engineering and Faculty of Environment Fellow, Balsillie School of International Affairs (BSIA)

University of Waterloo, Waterloo, ON

Wind power lobby myth buster is busted

The opening sentence in a recent post on the Canadian Wind Energy Association’s (CanWEA) website states:  “Various pundits assert that the major reason for higher electricity bills in Ontario is the addition of renewable energy to the province’s electricity mix. This is a myth.”

The post was created by Brandy Giannetta, Ontario Regional Director of CanWEA. Ms. Giannetta holds a Master of Arts and Public Policy degree and was recently appointed to the Independent Electricity System Operator’s (IESO) Strategic Advisory Committee (SAC).  The Committee, says IESO, “gives senior stakeholder and community representatives the opportunity to provide policy-level advice and recommendations directly to the IESO Board of Directors and Executive on matters relating to the IESO’s mandate and other matters that may be of concern to stakeholders and the general public.”

I have trouble believing a representative of wind industry trade association CanWEA will represent the concerns of the general public.

Ms. Giannetta’s post on CanWEA’s website on April 24, 2017 underlines my worries.

Her article points to two articles that purportedly support the “myth” she is “busting,” but both require closer examination.   She cites Waterloo professor Natin Nathwani’s, (PhD in chemical engineering and a 2016 “Sunshine list” salary of $184,550) article of March 6, 2017, posted on the TVO website, which supports Premier Wynne’s dubious claims of “a massive investment, on the order of $50 billion, for the renewal of Ontario’s aging electricity infrastructure.”  Professor Nathwani offers no breakdown of the investment which suggests he simply took Premier Wynne’s assertion from her “Fair Hydro Plan” statement as a fact!  It would be easy to tear apart Professor Nathwani’s math calculations — for example, “The total electricity bill for Ontario consumers has increased at 3.2 per cent per year on average” — but anyone reading that blatant claim knows his math is flawed!

The second “study” cited is by Keith Brooks, Program Director at Environmental Defence (Masters degree in Environmental Studies from York) in which he claims “the average Ontario household pays about $11 per month for wind power, and $9 for solar power.”  Collectively it amounts to an annual cost of $240 for the “average Ontario household”.  Mr. Brooks and Ms. Giannetta apparently believe that, by providing a figure representing a small monthly amount, we will all buy into CanWEA’s spin that wind and solar are competitive with other generation sources.

In fact, Ms. Giannetta chose to ignore other more factual information that is readily available on other websites, including the Ontario Energy Board’s (OEB) semi-annual Regulated Price Plan, Price Report.  The following is a chart from the Price Report (May 1, 2017 to April 30, 2018) the OEB uses in setting TOU prices on a go-forward basis for the ensuing six months.  Note the chart provides a breakdown by percentage of generation supply and of the Global Adjustment (GA) and a per kWh cost of the specific generation:

Table 2: Total Electricity Supply Cost

  % of Total Supply % of Total GA Total unit cost (cents/kWh)
Nuclear 60% 40 6.9
Hydro 24% 12 5.8
Gas 6% 15 20.5
Wind 8% 18 17.3
Solar 2% 14 48.0
Bio Energy 0% 0 13.1

Source: Navigant NB: Hydro excludes NUGs and OPG non-prescribed generation. Gas includes Lennox, NUGs and OPG bioenergy facilities. Percentage (%) of Total GA excludes CDM costs.

Based on information in the OEB chart, it is relatively easy to calculate the individual generation supply costs* to the Global Adjustment or GA. The IESO provide the specific detail on the GA and for 2016 it totals $12.333 billion.  As noted, the chart indicates wind is forecast to represent 18% of the GA so the cost of wind should be around $2.220 billion, solar (14%) around $1.6 billion and gas (15%) $1.850 billion.

The OEB forecast is that wind and solar, (granted “base-load” status via their contacts) will cost ratepayers $3.820 billion over the next 12 months representing 32% of total GA costs, but will only deliver 10% of the power generation — often when it’s not needed!

To ensure wind and solar generation is backed up, gas plants (classified as “peaking plants”) stand at the ready and are estimated to impact the GA by $1.850 billion (15%) for a forecast 6 % of generation.

Collectively, wind solar and gas generation over the next 12 months are forecast to provide a meager 16% of total generation but will represent a cost of $5.670 billion of the Global Adjustment or 47% of total GA costs.

Most would agree $5.7 billion in annual costs is more than a “myth” and could have gone a long way in providing social, health, education and transit services for the people in Ontario, rather than creating wealth for wind and solar developers!

….

*In the prior year’s forecast wind was estimated to generate 8% of supply, solar 2% and gas 9% and represent 44% of the GA costs. Also note the IESO GA reports are on a calendar year (Jan. 1st to Dec. 31st) basis.