WESTERN AUSTRALIA’S SOUTH WEST INTERCONNECTED SYSTEM (SWIS) GRID AND LIVE ELECTRICITY GENERATION DATA IN AUSTRALIA
The "LIVE SUPPLY & DEMAND WIDGET" is provided at no cost by GLOBAL-ROAM Pty Ltd) in partnership with RenewEconomy https://reneweconomy.com.au/nem-watch/ . It is designed to provide up to the moment data on the fuel mix that supplies the electricity consumed in Australia’s two main grids, and how this changes over the twenty four hour cycle and seasons.
With Small PV (rooftop) and Distributed Energy Resources being a focus of Neat, the smaller of the two grid systems, the South-Western Interconnected System (SWIS) grid of Western Australia (WA) makes a good case study. It supports the Wholesale Electricity Market (WEM) in the south-western corner of WA, and supplies the sprawling city of Perth, the sunniest capital city in Australia. For comparison, Perth receives 3,200 sunlight hours annually, compared to Melbourne with 2300 hours annually or Sydney with 2636 hours annually.
The SWIS grid is operated by state owned Western Power and it has evolved around coal power delivered from Collie, 200km south of Perth. In recent years the energy mix has included coal, gas, wind, large solar and small solar. By the end of 2020 small PV had taken over as the largest power supplier or virtual power station with 366,187 small scale, mostly residential systems (almost 1 in 3 Western Australian households) with a collective capacity of 1.62GW.
Hello, World!
https://opennem.org.au/compare/
Western Australia’s South West Interconnected System (SWIS) Grid
WHY ROOFTOP SOLAR IS SO CRUCIAL FOR AUSTRALIA’S RENEWABLE ENERGY TARGETS-ABC NEWS
SOUTH WEST INTERCONNECTED SYSTEM, WESTERN AUSTRALIA. MARCH 2023 MIDDAY SUPPLY AND DEMAND WITH PERTH TEMPERATURE
SOUTH WEST INTERCONNECTED SYSTEM, WESTERN AUSTRALIA. FEBRUARY 2023 MIDDAY SUPPLY AND DEMAND WITH PERTH TEMPERATURE
SOUTH WEST INTERCONNECTED SYSTEM, WESTERN AUSTRALIA. JANUARY 2023 MIDDAY SUPPLY AND DEMAND WITH PERTH TEMPERATURES
SOUTH WEST INTERCONNECTED SYSTEM, WESTERN AUSTRALIA. JANUARY 2023 MIDDAY SUPPLY AND DEMAND WITH PERTH TEMPERATURES
SOUTH WEST INTERCONNECTED SYSTEM, WESTERN AUSTRALIA. AUGUST 2022 MIDDAY SUPPLY AND DEMAND WITH PERTH TEMPERATURES
SOUTH WEST INTERCONNECTED SYSTEM, WESTERN AUSTRALIA. JULY 2022 MIDDAY SUPPLY AND DEMAND WITH PERTH TEMPERATURES
SOUTH WEST INTERCONNECTED SYSTEM, WESTERN AUSTRALIA. JUNE 2022 MIDDAY SUPPLY AND DEMAND WITH PERTH TEMPERATURES
The vagaries of the Western Australian South West wind in winter combined with reduced PV power generation support the urgent need to mobilise long term storage into the SWIS grid. Options include the pumped hydro proposal for Collie and utility-scale fuel green hydrogen fuel cells powered by low cost summer solar power.
With the progress in clean hydrogen, utility-scale fuel cell power is becoming a realistic option. South Korea is leading the way forward with 300MW deployed to date and 15,000MW proposed by 2040.
SOUTH WEST INTERCONNECTED SYSTEM, WESTERN AUSTRALIA. MAY 2022 MIDDAY SUPPLY AND DEMAND WITH PERTH TEMPERATURES
On several days, NEM Watch was not showing small solar, but of the midday recordings made, only 3 days went below 10% of demand and many days showed in excess of 39%. Wind on the other hand contributed 20% or more on 8 days and only on two days did the high production align with low PV days. Wind in the SWIS grid area is inconsistent but on the 5th May wind and solar were producing 70% of demand at midday and 50% was not uncommon.
SOUTH WEST INTERCONNECTED SYSTEM, WESTERN AUSTRALIA. APRIL 2022 MIDDAY SUPPLY AND DEMAND WITH MIDDAY TEMPERATURES
Around midday on Friday 15 April rooftop PV delivered 57% of the grid demand and only on three occasions did midday rooftop go below 30% of supply. This late autumn PV performance demonstrates the potential of distributed rooftop power and the urgency to catch up on storage. In the same period there was no marked increase in wind proportion or reliability, however the compatibility of wind and PV was well demonstrated on April 8 with stormy weather dropping the PV proportion, and wind picking up the slack. Perhaps the most remarkable thing here is that that solid, consistent yellow area is the power supplied by citizens. I have purposely placed the small PV where what used to be called base load power was traditionally positioned.
SOUTH WEST INTERCONNECTED SYSTEM, WESTERN AUSTRALIA. MARCH 2022 MIDDAY SUPPLY AND DEMAND WITH MIDDAY TEMPERATURES
Autumn in the SW of Australia brings greater fluctuations in solar offset by more consistency in wind generation. In March, demand continues to be shaped by temperature. Regardless of the fluctuations in rooftop/distributed PV, it is extremely reliable, suggesting that the South West grid virtual generator benefits from the sheer size of the array. Utility PV (Merredin Solar Farm) supplied between 1% and 4% at midday readings. This further supports the proposition that the most cost effective way to close the gap between demand and existing clean power supply is to build onto distributed PV, expand wind output and install both small scale and large utility storage capacity.
SOUTH WEST INTERCONNECTED SYSTEM, WESTERN AUSTRALIA. FEBRUARY 2022 MIDDAY SUPPLY AND DEMAND WITH MIDDAY TEMPERATURES
February showed the close correlation between electricity demand and temperatures. It also shows the consistency (around 1300-1400MW) of rooftop PV in providing the bulk of clean power at precisely the time it is needed most. The Merredin Solar Farm typically generates 110MW at midday, but for most of the month that was reduced to between 60 and 80MW. This might have been due to localised cloud buildup. Midday wind is, as expected wildly variable.
SOUTH WEST INTERCONNECTED SYSTEM, WESTERN AUSTRALIA. JANUARY 2022 MIDDAY SUPPLY AND DEMAND
The consistency of the ROOFTOP PV power supply is the most noticeable aspect of the January graph. Depending on DEMAND, the proportion ROOFTOP PV power delivered varies between 32% and 58%. UTILITY PV contributes around 3% to 4%.
The wild fluctuations in DEMAND were caused by record breaking heatwaves. The additional load can be directly attributed to air-conditioning demand and this synchronises neatly with PV power generation. Sadly, it also shows how much the SWIS grid still depends GAS and COAL power.
WIND during January is also highly variable.
“It was hard to believe that this rudimentary stuff was still powering one of the wealthiest countries in the world”
DECEMBER 2021 MIDDAY SUPPLY AND DEMAND
This graph tracks December middle of the day SWIS demand and supply. Looking at the red demand line, it clearly shows the effect of the hot days, and Christmas heatwave conditions. Small solar (rooftop) is fairly consistently contributing around 50% of demand at that time of the day, apart from one day where where it drops to 34% during the heatwave due to higher. On those days, large solar generally contributes 3% or 4%. Wind is highly variable-on occasion contributing 15% and sometimes going down to 4%. During the heatwave extreme load it helped in contributed a clean energy component of just over 50%.
What the graph shows most clearly is the daytime contribution made by small solar (less than 100kW) or the DER (Distributed Energy Resources). Without those rooftop systems, Western Australian progress on renewables would be pitifully negligible.
APRIL, Without WA’s distributed power (small PV) the SWIS grid would have a negligible renewable power. Efficient harnessing and storing of this daytime low cost power would seem to be a priority in WA. The WA state government recognises this, and announced a Distributed Energy Resources (DER) strategy and a 100MW battery south of the city. https://www.brighterenergyfuture.wa.gov.au
MAY. Increased demand, averaging under 2300MW early in the month and increasing the average to around 2400MW in the latter part of the month. Wind generally supplied around 5% of demand, but inconsistent. On the few windy days it generated a significant 33%. Large PV at reading times ranged between 2% and 5% while Small PV (small-scale rooftop solar) at the same times reliably delivered up to 40% (between 10.00am and 3.00pm).
JUNE: Small PV (rooftop solar) on occasion supplied 43% and consistently contributed between 20% and 30% between 10.00am and 3.00pm. Large solar delivered between 1% and 4% in the same periods. Wind ranged between 1% up to 27% at recording times (including after 4.00pm), probably the greatest daily variations. Coal is still consistently supplying the bulk.
APRIL 2021
2.00pm, Mon 26.04__Demand 2288MW. Small PV 657MW ( ~ 30%), large PV 87MW (~ 3%), wind 92MW (~ 4%) = ~ 37% renewable. Coal and gas ~ 63%.
4.30pm, Mon 26.04__Demand 2262MW. Small PV 306MW (~ 13%), large PV 46MW (~ 2%), wind 122MW (~ 5%)= ~ 20% renewable. Gas and coal ~ 80%.
12.30pm, Tue 27.04__Demand 2562MW. Small PV 888MW (~ 34%), large PV 78MW ( ~ 3%), wind 35MW (~ 1%) = ~ 38% renewable. Gas 612MW (~ 24%) and Coal 940MW ( ~ 36%).
12.30pm, Wed 28.04__Demand 2409MW. Small PV 897MW (~ 37%), large PV 65MW (~ 2%), wind 24MW ( ~ 1%) = ~ 40% renewable. Gas 715MW (~ 29%) and coal 695MW (~ 28%).
12.30pm, Thur 29.04__Demand 2760MW. Small PV 705MW ( ~ 25%), large PV 40MW (~ 1%), wind 159MW ( ~ 5%)= ~ 31% renewable Gas 777MW (~ 28%) and coal 1066MW (~ 38%).
12.30pm, Fri 30.04__Demand 2340MW. Small PV 1023MW (~ 45%). Large PV 38MW ( ~ 2%) and wind 45MW (~ 2%) = ~ 49% renewable. Gas 532MW (~ 22%) and coal 683MW (~ 29%).
MAY 2021
1.30pm, Sat 01.05__ Demand 2160MW. Small PV 1013 (~ 47%), large PV 89MW ( ~ 4%) and wind 88MW (~ 4%) = ~ 55% renewable. Gas 489MW and coal 470MW (combined ~45%).
11.00am, Sun 02.05__Demand 1314MW. No small PV registered on WA SWIS grid. Large PV 95MW (~ 7%), wind 54MW (~ 4%)= ~ 11% renewable . Gas 546MW (~ 41%) and coal 605MW (~ 46%).
2.30pm, Mon 03.05__Demand 1581MW. No small PV registered on WA SWIS grid. Large PV 86MW (~ 5%) , wind 262MW (~ 16%), Gas 763MW ( ~ 48%) and coal 553MW ( ~ 35%).
9.30am, Tue 04.05__Demand 2077MW. No small PV or large PV registered on SWIS grid. Wind 262MW ( ~ 12%), Gas 755MW (~ 36%) and coal 1047MW ( ~ 50%0.
1.00pm, Thur 06.05__Demand 2285MW. Small PV 598MW (~ 26%). Large PV 64MW (~ 3%), Wind 116MW (~ 5%) = ~ 34% renewable, Lliquid fuel 42MW (~ 2%), gas 640MW (~ 28%) and coal 825MW (~ 36%).
11.30am, Sat 08.05__Demand 2256MW. Small PV 876MW (~ 40%). Large PV 85MW (~ 4%) and wind 113MW (~ 5%) = ~ 49% renewable. Gas 668MW (~ 31%) and coal 449MW (~ 20%).
3.30pm, Sun 09.05__Demand 1998MW. Small PV 473MW (~ 23%). Large PV 89MW (~ 4%) and wind 95MW (~ 5%) = ~ 32% renewable. Gas 771MW (~ 39%) and coal 568MW (~ 29%).
12.30pm, Mon 10.05__Demand 2441MW. Small PV 993MW (~ 41%). Large PV 78MW (~ 3%) and wind 168MW (~ 7%) = ~ 51% renewable. Gas 624MW (~ 26%) and coal 556MW (~ 23%).
12.30pm, Tue 11.05__Demand 2455MW. Small PV 860MW (~ 40%). Large PV 85MW (~ 4%) and wind 385MW (~ 16%) = ~ 60% renewable. Gas 434MW (~ 18%) and coal 536MW (~ 22%).
12.30pm, Fri 21.05__Demand 2342MW. Small PV 897MW (~ 41%). Large PV 79MW (~ 3%) and wind 152MW (~ 6%) = ~ 69% renewable. Gas 513MW (~ 22%) and coal 699MW (~ 29%).
12.30, Fri 28.05__Demand 2369MW. Small PV 307MW (~ 13%). Large PV 43MW (~ 2%) and wind 580MW (~ 25%)= ~ 40% renewable. Gas 700MW (~ 30%) and coal 735MW (~ 30%).
05.00pm, Fri 28.05__Demand 2407MW. Small PV 12MW (~ .5%). Large PV - , wind 803MW (~ 33%)= ~ 33.5% renewable. Gas 592MW (~ 25%) and coal 977MW (~ 40%).
JUNE 2021
01.00pm, Tue 01.06__Demand 2419MW. Small PV 872MW (~ 36%), large PV 42MW (~ 2%) and wind 127MW (~ 5%) = ~ 43% renewable. Gas 733MW (~ 31%) and coal 625MW (~ 25%).
06.45pm, Wed 02.06__Demand 2831 MW. Small PV-, Large PV-, wind 92 MW (~ 3%) = ~ 3% renewable. Gas 1732 MW (~ 62%) and coal 1000MW (~ 35%).
09.30am, Fri 04.06__Demand 2928MW. Small PV 389MW (~ 13%), large PV 77MW (~ 3%), wind 357MW (~ 12%) = ~ 28% renewable. Gas 688MW (~ 23%) and coal 1180MW (~ 41%).
12.30pm, Fri 04.06__Demand 2450MW. Small PV 927MW (~ 38%), large PV 78MW (~ 3%), wind 183MW (~ 7%) = ~ 48% renewable. Gas 524MW (~ 22%) and coal 752MW (~ 30%).
01.00pm, Sat 05.06__Demand 2160MW. Small PV 923MW (~ 43%), large PV 78MW (~ 4%), wind 41MW (~ 2%) = ~ 49% renewable. Gas 518MW (~ 24%) and coal 581MW (~ 27%).
02.30pm, Sun 06.06__Demand 2035MW. Small PV 372MW (~ 18%), large PV 78MW (~ 4%), wind 117MW (~ 6%) = ~ 28% renewable. Gas 608MW (~ 29%) and coal 852MW (~ 42%).
10.00am, Mon 07.06__Demand 2465MW. Small PV 560MW (~ 23%), large PV 84MW (~ 3%), wind 652MW (~ 27%) = ~ 53% renewable. Gas 578MW (~ 23%) and coal 595MW (~ 24%).
01.00pm, Mon 07.06__Demand 2231MW. Small PV 841MW (~ 38%), large PV -, wind 430MW (~ 19%) = ~ 57% renewable. Gas 480MW (~ 22%) and coal 470MW (~ 21%).
09.30am, Tue 08.06__Demand 2894MW. Small PV 483MW (~ 16%), large PV 84MW (~ 3%), wind 752MW (~ 26%) = ~ 45% renewable. Gas 619MW (~ 21%) and coal 935MW (~ 32%).
01.00pm, Tue 08.06__Demand 2678MW. Small PV 518MW (~ 19%), large PV 74MW (~ 3%), wind 829MW (~ 31%) = ~ 53% renewable. Gas 556MW (~ 20%) and coal 684MW (~ 26%).
09.30am, Wed 23.06__Demand 3354MW. Small PV 379MW (~ 11%), large PV 70MW (~ 2%), wind 500MW (~ 15%) = ~ 28% renewable. Gas 900MW (~ 27%) and coal 1488MW (~ 44%).
11.30am, Wed 23.06__Demand 2831MW. Small PV 807MW (~ 28%), large PV -, wind 559MW (~ 20%) = ~ 48% renewable. Gas 516MW (~ 18%), coal 936MW (~ 33%).
02.00pm, Wed 23.06__Demand 2589MW. Small PV 770MW (~ 30%), large PV -, wind 342MW (~ 13%) = ~ 43% renewable. Gas 610MW (~ 23%), coal 819MW (~ 33%).
02.30pm, Thur 24.06__Demand 2496MW. Small PV 725MW (~ 29%), large PV 38MW (~ 1%), wind 56MW (~ 2%) = ~ 32% renewable. Gas 646MW (~ 26%), coal 1019MW (~ 41%).
02.30pm, Tue 29.06__Demand 2505MW. Small PV 687MW (~ 27%), Large PV 29MW (~ 1%), wind 420MW (~ 17%) = ~ 45% renewable. Gas 551MW (~ 22%), coal 797MW (~ 32%).
9.30am, Wed 30.06__Demand 2892MW. Small PV 199MW ( ~ 8%), Large PV 68MW (~ 2%), wind 62MW (~ 2%) = ~ 12% renewable. Gas 1028MW (~ 35%), coal 1519MW (~ 52%).
JULY 2021
5.00pm, Fri 02.07__Demand 2454MW. Small PV 135MW (~ 6%), large PV 23MW (~ 1%), wind 22MW (~ 1%) = ~ 8% renewable. Gas 934MW (~ 38%), coal 1317MW (~ 54%).
1.00pm, Mon 12.07__Demand 2738MW. Small PV 724MW (~ 27%), large PV 31MW (~ 1%), wind 698MW (~ 25%) = ~ 53% renewable. Gas 375MW (~ 14%), coal 901MW (~ 33%).
6.00pm, Tue 13.07__Demand 2640MW. Small PV -, large PV -, wind 789MW (~ 30%) = ~ 30% renewable. Gas 724MW (~ 28%), coal 1115MW (~ 42%).
3.30pm, Wed 14.07__Demand 2400MW. Small PV 348MW (~ 14%), large PV 15MW (~ 1%), wind 692MW (~ 29%) = ~ 44% renewable. Gas 486MW (~ 20%), coal 848MW (~ 35%).
10.00am, Thur 15.07__Demand 2758MW. Small PV 533 (~ 20%), large PV 78MW (~ 3%), wind 826MW (~ 30%) = ~ 53% renewable. Gas 465MW (~ 17%), Coal 842MW (~ 31%).
08.00pm, Thur 15.07__Demand 2815MW. Small PV -, large PV -, wind 315MW (~ 11%) = ~ 11% renewable. Gas 967MW (~ 34%), coal 1516MW (~ 54%).
09.00am, Fri 16.07__Demand 2527MW. Small PV 175MW (~ 7%), large PV -, wind 96MW (~ 4%) = ~ 11% renewable. Gas 725MW (~ 29%) coal 1520MW (~ 60%)
01.00pm, Fri 16.07__Demand 2373MW. Small PV 386MW (~ 16%), large PV 55MW (~ 2%), wind 88MW (~ 4%) = ~ 22% renewable. Gas 732MW (~ 31%), coal 1103MW (~ 47%).
04.30pm, Fri 16.07__Demand 2326MW. Small PV 98MW (~ 4%), large PV -, wind 86MW (~ 4%) = ~ 8% renewable. Gas 872MW (~ 38%), coal 1263MW (~ 53%).
10.00am, Mon 19.07__Demand 2797MW. Small PV 196MW (~ 6%), large PV -, wind 30MW (~ 1%) = ~ 7% renewable. Gas 1053MW (~ 38%), coal 1491MW (~ 53%).
03.00pm, Mon 19.07__Demand 2542MW. Small PV 198MW (~ 8%), large PV 16MW (~ 0%), wind 70MW (~ 3%) = ~ 11% renewable. Gas 718MW (~ 28%), coal 1531MW (~ 60%).
10.00pm, Mon 19.07__Demand 2478MW. Small PV -, Large PV-, Wind 300MW (~ 12%) = ~ 12% renewable. Gas 802MW (~ 32%), coal 1433 (~ 58%).
12.00pm, Tue 20.07__Demand 2860MW. Small PV 144MW (~ 5%), Large PV-, Wind 704MW (~ 25%) = ~ 30% renewable. Gas 481MW (~ 17%), coal 1510MW (~ 53%).
10.30am, Wed 21.07__Demand 2572MW. Small PV 564MW (~ 22%), Large PV 26MW (~ 1%), wind 388MW (~ 15%) = ~ 38% renewable. Gas 485MW (~ 19%), coal 1105MW (~ 43%).
02.30pm, Wed 21.07__Demand 2339MW. Small PV 658MW (~ 28%), large PV 26MW (~ 1%), wind 394MW (~ 17%) = ~ 46% renewable. Gas 420MW (~ 18%), coal 836MW (~ 36%).
10.00pm, Wed 21.07__Demand 2609MW. Small PV -, Large PV -, wind 221MW (~ 9%) = ~ 9% renewable. Gas 1086MW (~ 41%), coal 1325MW (~ 51%).
1100am, Thur 22.07__Demand 2666MW. Small PV 680MW (~ 26%), Large PV 85MW (~ 3%), wind 36MW = ~ 30% renewable. Gas 817MW (~ 31%), coal 1046MW (~ 39%)
12.30pm, Thur 22.07__Demand 2646MW. Small PV 877MW (~ 30%), Large PV 62MW (~ 2%), wind 28MW (~ 1%) = ~ 33% renewable. Gas 706MW (~ 27%), coal 960MW (~ 36%).
09.3am, Fri 23.07__Demand 2712MW. Small PV 239MW (~ 9%), large PV 21MW (~ 1%), wind 343MW (~ 13%) = ~ 23% renewable. Gas 888MW (~ 33%), coal 1213MW (~ 45%).
04.00pm, Fri 23.07__Demand 2533MW. Small PV 287MW (~ 11%), large PV 13MW (~ 0%), wind 695MW (~ 28%)= ~ 39% renewable. Gas 688MW (~ 27%), coal 829MW (~ 33%).
10.00am, Sat 24.07__Demand 2385MW. Small PV 354MW (~ 15%), large PV 92MW (~ 4%), wind 60MW (~ 3%) = ~ 22% renewable. Gas 748MW (~ 31%), coal 1141MW (~ 47%).
11.30am, Sun 25.07__Demand 2280MW. Small PV 640MW (~ 28%), large PV 43MW (~ 2%), wind 132MW (~ 6%)= ~ 36% renewable. Gas 472MW (~ 21%), coal 974MW (~ 43%)
05.30pm, Sun 25.07__Demand 2308MW. Small PV -, large PV -, wind 216MW (~ 9%)= ~ 9% renewable. Gas 987MW (~ 43%), coal 1079MW (~ 47%)
10.30pm, Sun 25.07__Demand 2348MW. Small PV -, Large PV -, wind 261MW (~ 11%)= ~ 11% renewable. Gas 938MW (~ 40%)+ coal 1134MW (~ 50%)
08.00pm, Mon 26 July __Demand 2790MW. Small PV -, large PV -, wind 839MW (~ 30%)= ~ 30% renewable Gas 840MW (~ 30%), coal 1143MW (~ 40%)
09.00pm, Thur 29 July__Demand 2692MW. Small PV 179MW (~ 7%), large PV -, wind 881MW (~ 33%) = ~ 40% renewable Gas 598MW (~ 22%), coal 1005MW (~ 38%)
AUG 2021
7.00am, Sun 1 Aug__Demand 1826MW. Small PV -, Large PV -, wind 819MW (~ 45%)= ~ 45% renewable Gas 450MW (~ 25%), Coal 625MW (~ 34%)
12.00pm, Sun 1 Aug__ Demand 2580MW. Small PV 487MW (~ 19%), large PV - , wind 819MW (~ 32%) = ~ 51% renewable
6.30pm, Mon 2 Aug __ Demand 3188MW Small PV - , Large PV - , wind 37MW (~ 1%) = ~ 1% renewable Gas 1893MW (~ 59%), coal 1238MW (~ 39%)
7.00am, Tue 3 Aug __ Demand 2319MW. Small PV - , Large PV - , wind 155MW (~ 6%) = ~ 6% renewable Gas 1041MW (~ 45%), Coal 1182MW (~ 51%)
12.00pm, Fri 6 Aug__ Demand 2380MW. SmallPV 982MW (~ 41%), large PV 86MW (~ 3%), wind 292MW (~ 12%)= ~ 56% renewable. Gas 318MW (~ 13%), coal 730MW (~ 31%)
9 August IPCC REPORT RELEASED-CODE RED
9.30am, Fri 13 Aug __ Demand 2674MW SmallPV 561MW (~ 21%), large PV 97MW (~ 4%), wind 518MW (~ 16%) = ~ 41% renewable. Gas 588MW (~ 22%), coal 942MW (~ 35%)
3.00pm, Fri 13 Aug__Demand 2185MW. Small PV 870MW (~ 40%), large PV 96MW (~ 5%), wind69MW (~ 3%) = ~ 48% renewable. Gas 492MW (~ 22%), coal 660MW (~ 30%)
12.30pm, Sat 14 Aug__ Demand 2118MW. Small PV 1041MW (~ 50%), large PV 84MW (~ 4%), wind 39MW (~ 2%) =~ 56% renewable. Gas 399MW (~ 19%), coal 542MW (~ 26%)
3.30pm Sat 14 Aug__ Demand 1897MW Small PV 777MW (~ 41%), large PV 88MW (~ 5%), wind 22MW (~ 1%)= ~ 47% renewable. Gas 426KW (~ 23MW, coal 573MW (~ 30%)
8.00am, Wed 25 Aug __ Demand 2551MW. Small PV 149MW ( ~ 6%), large PV 48MW (~ 2%), wind 821MW (~ 32%)= ~ 40% renewable Gas 582MW (~ 23%), coal 946MW (~ 37%)
9.00am, Wed 25 Aug __ Demand 2522MW Small PV 478MW (~ 18%), large PV 102MW (~ 4%), wind 788MW (~ 31%) = ~ 53% renewable. Gas 453MW (~ 17%), coal 699MW (~ 27%)
10.00am, Wed 25 Aug __ Demand 2446MW Small PV 759MW (~ 31%), Large PV 107MW (~ 4%), wind 607MW (~ 25%)= ~ 60% renewable. Gas 393MW (~ 16%), coal 569MW (~ 23%)
11.00am, Wed 25 Aug __ Demand 2354MW. Small PV 1000MW (~ 42%), large PV 104MW (~ 4%), wind 412MW (~ 17%) = ~ 63% renewable. Gas 271MW (~ 11%), coal 554MW (~ 23%)
2.00pm, Wed 25 Aug __ Demand 2250MW. Small PV 1021MW (~ 45%), large PV 100MW (~ 4%), wind 259MW (~ 11%) = ~ 60% renewable. Gas 347MW (~ 15%), coal 511MW (~ 23%)
4.00pm, Wed 25 Aug __ Demand 2160MW Small PV 537MW (~ 25%), Large PV 98MW (~ 4%), wind 343MW (~ 16%) = ~ 45% renewable. Gas 605MW (~ 28%), coal 561MW (~ 26%
3.00pm, Fri 27 Aug __ Demand 2369MW. Small PV 710MW (~ 30%), large PV 92MW (~ 3%), wind 325MW (~ 13%) = ~ 46% renewable. Gas 354MW (~ 15%), coal 874MW (~ 37%)
SEPTEMBER 2021
11.30am, Sat 4 Sep __ Demand 2250MW. Small PV 1127MW (~ 50%), large PV 97MW (~ 4%), wind 182MW (~ 8%) = ~ 62% renewable Gas 219MW (~ 10%), coal 599MW (~ 26%).
3.00pm, Mon 6 Sep __ Demand 2160MW. Small PV 907MW (~ 42%), large PV 101MW (~ 4%), wind 177MW (~ 8%) = ~ 54% renewable Gas 444MW (~ 20%), coal 514MW (~ 24%)
12.00pm, Tue 7 Sep __ Demand 2312 MW. Small PV 1168MW (~ 50%), large PV 97MW (~ 4%), wind 362MW (~ 15%) = ~ 69% renewable Gas 330MW (~ 14%), coal 331MW (~ 14%)
11.00am, Wed 8 Sep __ Demand 2395MW. Small PV 1113MW (~ 46%), large PV 107MW (~ 4%), wind 159MW (~ 6%) = ~ 56% renewable. Gas 454MW (~ 19%), coal 563MW (~ 23%)
9.00am Sat 11 Sep __ Demand 2243MW Small PV 541MW (~ 24%), large PV 98MW (~ 4%), wind 187MW (~ 8%) = ~ 36% renewable. Gas 669MW (~ 30%), Coal 738MW (~ 33%)
8.00am, Sun 12 Sep __ Demand 2029MW Small PV 315MW (~ 15%), large PV 87MW (~ 4%), wind 556MW (~ 27%) = ~ 46% renewable Gas 572MW (~ 28%), coal 522MW (~ 26%)
12.00pm, Sun 12 Sep __ Demand 2066MW Small PV 1060MW (~ 51%), large PV 66MW (~ 3%), wind 121MW (~ 6%) = ~ 60% renewable. Gas 494MW (~ 24%), coal 321MW (~ 15%)
1.30pm, Sun 12 Sep __ Demand 1982MW Small PV 1133MW (~ 57%), large PV 75MW (~ 4%), wind 50MW (~ 2%) = ~ 63% renewable. Gas 438MW (~ 22%), coal 273MW (~ 14%)
2.00pm, Mon 13 Sep __ Demand 2243MW. Small PV 1161MW (~ 52%), Large PV 109MW (~ 4%), wind 46MW (~ 2%) = ~ 58% renewable. Gas 460MW (~ 20%), coal 451MW (~ 20%)
3.00pm, Thur 16 Sep __ Demand 2257MW Small PV 695MW (~ 31%), large PV 46MW (~ 2%), wind 309MW (~ 13%) = ~ 46% renewable. Gas 543MW (~ 24%), coal 659MW (~29%).
12.30pm, Tue 21 Sep __ Demand 2205MW. Small PV 1219MW (~ 55%), large PV 80MW (~ 4%), wind 252MW (~ 11%) = ~ 69% renewable. Gas 187MW (~ 8%), coal 460MW (~ 21%).
4.00pm, Tue 21 Sep __ Demand 2154MW. Small PV 768MW (~ 36%), large PV 94 MW (~ 4%), wind 195MW (~ 9%) = ~ 49% renewable. Gas 505MW (~ 23%), coal 581MW (~ 27%).
10.00am, Wed 22 Sep __ Demand 2243MW. Small PV 942MW (~ 42%), large PV 97MW (~ 4%), wind 447MW (~ 20%) = ~ 66% renewable. Gas 241MW (~ 11%), coal 511MW (~ 23%)
12.00midday, Wed 22 Sep __ Demand 2285MW Small PV 1216MW (~ 53%), large PV 86MW (~ 4%), wind 236MW (~ 10%) = ~ 67% renewable. Gas 246MW (~ 11%), coal 493MW (~ 22%)
2.00pm, Wed 22 Sep __ Demand 2240MW Small PV 1193MW (~ 53%), large PV 88MW (~ 4%), wind 33MW (~ 1%) = ~ 58% renewable. Gas 315MW (~ 14%), coal 598MW (~ 27%)
4.00pm, Wed 22 Sep __ Demand 2215MW. Small PV 1151MW (~ 52%), large PV 89MW (~ 4%), wind 32MW (~ 1%) = ~ 57% renewable. Gas 302MW (~ 14%), coal 624MW (~ 28%)
OCTOBER 2021
11.00am, Thur 7 Oct ___ Demand 2371MW. Small PV 1160MW (~ 48%), large PV 110MW (~ 4%), wind 24MW (~ 1%) = ~ 53% renewable. Gas 296MW (~ 12%), coal 763MW (~ 32%).
6.00pm, Thur 7 Oct __ Demand 2277MW. Small PV 71MW (~ 3%), large PV 24MW (~ 1%), wind 324MW (~ 14%) = ~ 18% renewable. Gas 749MW (~ 33%), coal 1090MW (~ 49%)
4.30pm, Mon 11 Oct __ Demand 2338MW. Small PV 434MW (~ 18%), large PV -, wind 843MW (~ 36%) = ~ 54% renewable. Gas 347MW (~ 15%), coal 708MW (~ 30%).
2.30pm, Thur 14 Oct __ Demand 2285MW. Small PV 1226MW (~ 54%), Large PV 110MW (~ 5%), wind 87MW (~ 4%) = ~ 63% renewable. Gas 386MW (~ 17%), coal 458MW (~ 20%)
11.00am, Fri 15 Oct __ Demand 2368MW. Small PV 1178MW (~ 49%), large PV 100MW (~ 4%), wind 366MW (~ 15%) = ~ 68% renewable. Gas 234MW (~ 10%), coal 485MW (~ 20%)
1.00pm, Sat 30 Oct __ Demand 2271MW. Small PV 1408MW (~ 62%), large PV 100MW (~ 4%), wind 65MW (~ 3%) = ~ 69% renewable. Gas 467MW (~ 20%), coal 211MW (~ 9%)
11.00pm, Sat 30 Oct __Demand 1953MW Small PV -, large PV -, wind 466MW (~ 24%) = ~ 24% renewable. Gas 674MW (~ 35%), coal 822MW (~ 42%)
11.30pm, Sat 30 Oct __ Demand 1870MW. Small PV - , large PV - , wind 538MW (~ 29%) = ~ 29% renewable. Gas 643MW (~ 34%), coal 681MW (~ 36%)
7.00am, Sun 31 Oct __ Demand 1739MW. Small PV 157MW (~ 9%), large PV 77MW (~ 4%), wind 350MW (~ 20%) = 33% renewable. Gas 543MW (~ 31%), coal 606MW (~ 35%)
8.00am, Sun 31 Oct __ Demand 1793MW. Small PV 464MW (~ 26%), large PV 110MW (~ 6%), wind 250MW (~ 14%) = 46% renewable. Gas 479MW (~ 27%), coal 496MW (~ 28%)
10.00am, Sun 31 Oct __ Demand 2177MW. SmallPV 1121MW (~ 51%), Large PV 100MW (~ 4%), wind 109MW(~ 5%) = 60% renewable. Gas 445MW (~ 20%), coal 383MW (~ 18%)
11.00am, Sun 31 Oct __ Demand 2188MW. Small PV 1306 (~ 59%), large PV 100MW (~ 4%), wind 20MW (~ 1%) = ~ 64% renewable. Gas 401MW (~ 18%), coal 358MW (~ 16%)
12.00pm, Sun 31 Oct __ Demand 2265MW. Small PV 1376 (~ 61%), large PV 100MW (~ 4%), wind 33MW (~ 1%) = ~ 66% renewable. Gas 414MW (~ 18%), coal 332MW (~ 15%)
5.00pm, Sun 31 Oct __ Demand 2142MW. Small PV 566MW (~ 26%), large PV 94MW (~ 4%), wind 347MW (~ 16%) = ~ 46% renewable. Gas 618MW (~ 29%), coal 512MW (~ 24%)
NOVEMBER 2021
1.00pm, Sat 20 Nov __ Demand 2285MW. Small solar 1219MW (~ 53%), large solar 107MW (~ 4%), wind 97MW (~ 4%) = 61% renewable. Gas 449MW (~ 20%), coal 398MW (~ 17%)
12.30pm, Sun 21 Nov __ Demand 2413MW. Small solar 1078MW (~ 45%), large solar 30MW (~ 1%), wind 528MW (~ 22%) = 68% renewable Gas 402MW (~ 17%), coal 358MW (~ 15%).
1.30pm, Mon 22 Nov __ Demand 2371MW. Small solar 1185MW (~ 50%), large solar 88MW (~ 4%), wind 408MW (~ 17%) = 71% renewable. Gas 357MW (~ 15%), coal 332MW (~ 14%)
12.30pm, Tue 23 Nov __ Demand 2455MW. Small solar 1371MW (~ 56%), large solar 110MW (~ 4%), wind 117MW (~ 5%) = 65% renewable. Gas 415MW (~ 17%), coal 432MW (~ 17%).
12.30pm, Thur 25 Nov __ Demand 2743MW. Small solar 1400MW (~ 51%), large solar 106MW (~ 4%), wind 74MW (~ 3%) = 58% renewable. Gas 496MW (~ 18%), coal 651MW (~ 24%).
12.00pm, Sun 28 Nov __ Demand 2783MW. Small solar 1360MW (~ 48%), large solar 110MW (~ 4%), wind 134MW (~ 5%) = 57% renewable. Gas 472MW (~ 17%), coal 702MW (~ 25%).
12.00pm Mon 29 Nov __ Demand 2607MW. Small solar 1354MW (~ 52%), large solar 110MW (~ 4%), wind 233MW (~ 9%) = 65% renewable. Gas 356MW (~ 14%), coal 542MW (~ 21%).
12.00pm Tue 30 Nov __ Demand 2414MW. Small solar 1338MW (~ 56%), large solar 101MW (~ 4%), wind 175MW (~ 7%) = 67% renewable. Gas 213MW (~ 9%), coal 568MW (~ 24%).
DECEMBER 2021
12.00pm, Wed 1 Dec __ Demand 2512MW. Small solar 1369MW (~ 54%), large solar 101MW (~ 4%), wind 241MW (~ 10%) = 68% renewable. Gas 186MW (~ 7%), coal 594MW (~ 24%).
12.00pm, Fri 3 Dec __ Demand 2572MW. Small solar 1422MW (~ 55%), large solar 100MW (~ 4%), wind 189MW (~ 7%) = 66% renewable. Gas 400MW (~ 16%), coal 446MW (~ 17%).
12.00pm, Sat 4 Dec __ Demand 2604MW. Small solar 1396MW (~ 54%), large solar 101MW (~ 4%), wind 376MW (~ 14%) = 72% renewable. Gas 212MW (~ 8%), coal 494MW (~ 19%).
12.00pm, Mon 6 Dec __ Demand 2631MW. Small solar 1339MW (~ 51%), large solar 108MW (~ 4%), wind 265MW (~ 10%) = 65% renewable. Gas 315MW (~ 12%), coal 582MW (~ 22%).
12.00pm, Tue 7 Dec __ Demand 2678MW. Small solar 1397MW (~ 52%), large solar 100MW (~ 4%), wind 266MW (~ 10%) = 66% renewable. Gas 305MW (~ 11%), coal 602MW (~ 22%).
10.45am, Wed 8 Dec __ Demand 3215MW. Small solar 1171MW (~ 36%), large solar 88MW (~ 3%), wind 644MW (~ 20%) = 59% renewable. Gas 576MW (~ 18%), coal 726MW (~ 23%).
12.00pm, Thur 9 Dec __ Demand 3554MW. Small solar 1108MW (~ 31%), large solar 72MW (~ 2%), wind 243MW (~ 6%) = 39% renewable. Gas 844MW (~ 24%), coal 1280MW (~ 36%).