Select a plant from the dropdown above to view its performance detail and organisation history.
57 Plants Reporting
0.38 GWh Generation This Month
40.6 M TL Imbalance Cost This Month
12.7% Median Imbalance % -15.6pp vs vs prev. month
116 TL/MWh Sector Unit Cost

Plant Ranking – June 2026

Rank Plant Imbalance (%) Unit Cost (TL/MWh) Generation (MWh) Total Cost
1 G3-GAZİANTEP-1-1 GES 5.0% 59.54 6,584 391,967
2 G3-GAZİANTEP-3-1 GES 5.8% 67.51 3,311 223,482
3 G3-GAZİANTEP-2-1 GES 6.7% 81.32 6,430 522,859
4 TEKSİN GES 8.4% 47.98 7,308 350,652
5 KIVANÇ-2 GES 8.6% 58.57 10,893 637,955
6 G4-VİRANŞEHİR-7 GES 9.0% 111.33 8,587 955,952
7 MT GES 9.3% 70.72 2,078 146,983
8 ÖZGÜÇLÜ GES 9.4% 58.26 2,379 138,603
9 ÖZMEN-1 GES 9.4% 36.42 3,580 130,387
10 GÜN GÜNEŞ ANTALYA AKSEKİ BÜYÜKALAN 1 GES 10.1% 88.58 5,772 511,252
11 YAYSUN GES 10.3% 71.65 2,064 147,860
12 G4-BOR3 GES 10.3% 113.64 30,417 3,456,545
13 OMİCRON ERCİŞ GES 10.3% 74.29 2,203 163,654
14 G4-VİRANŞEHİR-5 GES 10.3% 136.02 8,531 1,160,390
15 G4-BOR2 GES 10.7% 107.95 30,971 3,343,441
16 G4-VİRANŞEHİR-8 GES 10.9% 148.24 8,308 1,231,546
17 CINGILLI GES 10.9% 103.03 5,933 611,230
18 SİLOPİ GES 11.2% 78.42 1,567 122,889
19 PSİ ENGİL207 GES 11.2% 84.72 2,359 199,806
20 G4-VİRANŞEHİR-6 GES 11.6% 84.70 12,763 1,081,046
21 G4-VİRANŞEHİR-2 GES 11.6% 77.84 12,739 991,658
22 AFTA GES 11.8% 140.51 2,431 341,543
23 İOTA M. FIRINCI GES 11.8% 118.35 2,270 268,672
24 G4-VİRANŞEHİR-4 GES 12.1% 120.16 10,878 1,307,145
25 HAMAL GES 12.5% 115.69 1,950 225,617
26 GÜN GÜNEŞ VAN ARISU GES 12.5% 85.20 13,243 1,128,313
27 OMİCRON ENGİL208 GES 12.6% 102.83 2,105 216,480
28 RA GÜNEŞ MARDİN GES 12.6% 128.41 2,662 341,803
29 G4-BOR-1 GES 12.7% 150.27 30,718 4,616,095
30 G4-VİRANŞEHİR-10 GES 12.7% 71.11 13,099 931,402
31 SOLANA KONYA GES 12.8% 136.82 549 75,089
32 EDİKLİ GES 12.8% 65.78 2,302 151,435
33 G4-VİRANŞEHİR-9 GES 13.0% 136.73 10,620 1,452,109
34 KÜÇÜKKÖY GES 13.0% 116.95 4,597 537,558
35 ME-SE GES 13.3% 114.34 2,035 232,714
36 GİTAŞ-1 GES 13.6% 101.92 2,237 228,028
37 G4-VİRANŞEHİR-3 GES 13.6% 165.26 12,537 2,071,824
38 G4-VİRANŞEHİR-1 GES 13.9% 123.20 12,036 1,482,847
39 G4-ERZİN-2 GES 14.0% 160.41 21,275 3,412,842
40 G4-ERZİN-1 GES 14.1% 146.78 14,137 2,074,984
41 APA GES 15.2% 142.91 2,684 383,531
42 FERNAS-4 GES 15.5% 141.59 4,940 699,410
43 HALK ENERJİ ERZURUM GES 15.6% 112.32 1,015 113,967
44 ALAGES ADİLCEVAZ GES 15.6% 93.92 3,847 361,348
45 G3-AĞRI-1-2 GES 16.8% 141.16 3,208 452,793
46 G3-AĞRI-2-2 GES 16.9% 136.34 3,212 437,970
47 METGES BURDUR GES 18.7% 169.14 1,547 261,689
48 ALİBEY GES 19.4% 162.75 1,213 197,337
49 RENOE ACIPAYAM GES 19.9% 200.90 2,184 438,704
50 DENİZLİ TAVAS GES 20.8% 156.23 1,033 161,353
51 TAŞKESİĞİ GES 21.7% 215.18 2,068 444,965
52 BÜGET GES(KAROMAD) 22.2% 218.35 1,557 340,025
53 SOLENTEGRE GES 24.5% 232.00 1,229 285,035
54 ALİBEYHÖYÜĞÜ GES 24.6% 92.82 4,078 378,496
55 BÜGET GES(ULUDER) 26.1% 307.74 1,922 591,382
56 SERRA GES 27.9% 129.65 1,269 164,573
57 G24-KÜTAHYA GES 32.5% 72.42 1,635 118,378

This dashboard is built on publicly available settlement data from EPİAŞ (Turkish Energy Exchange). The metrics below explain exactly how each figure is computed.

Data Source
All production, imbalance, and KÜPST figures are drawn from the EPİAŞ Real-Time Settlement (Gerçek Zamanlı Uzlaştırma / GZU) reports. Data is fetched at hourly resolution via the public EPIAS Transparency Platform REST API (eptr2) and aggregated to monthly plant-level summaries. The dataset covers all licensed solar (GES) or wind (RES) power plants that reported at least one hour of production in the analysis period.
Imbalance Ratio (%)
The imbalance ratio measures how much a plant's hourly generation deviates from its day-ahead schedule, relative to what it actually produced. For each hour we take the absolute difference between the forecast (KÜDÜP) and the actual settlement quantity (UEVM), sum these over the month, and divide by total actual generation:
Imbalance % = Σ |KÜDÜP − UEVM| (hourly) ÷ Σ UEVM (monthly) × 100
Because the hourly differences are taken in absolute value, over-production hours and under-production hours do not cancel out — both count as imbalance. The metric therefore captures hourly forecasting volatility and is scale-independent, so plants of different sizes compare fairly. The separate net imbalance (signed sum, where surplus and deficit hours offset) is typically much smaller and is reported as a distinct figure.
Imbalance Cost
Imbalance cost arises when a plant's actual hourly generation differs from its day-ahead schedule. Settlement is system-direction-dependent: positive imbalance (plant produced more than scheduled) is settled on min(MCP, SMP); negative imbalance (produced less) on max(MCP, SMP).
  • Until Dec 2025 — flat 3% margin: positive at min(MCP, SMP) × 0.97, negative at max(MCP, SMP) × 1.03.
  • From Jan 2026 (EPDK regulation, Official Gazette 29/12/2025) — the margin depends on whether the plant's deviation aggravates or relieves the system. A deviation in the same direction as the system imbalance is charged 6% (positive × 0.94, negative × 1.06); a deviation that helps the system keeps the 3% margin (positive × 0.97, negative × 1.03).
Figures use EPİAŞ's published hourly imbalance prices, which already embed the applicable system-direction coefficient. The reported monthly value is the net imbalance cost (TL) — the algebraic sum of positive and negative settlement differences over all hours.
KÜPST Cost
KÜPST (Katılım Ücreti ve Perakende Satış Tarifesi Primi) is a penalty levied when a plant's monthly net imbalance exceeds a regulatory tolerance band:
  • Solar (GES): 8% of monthly generation (10% before Jan 2026)
  • Wind (RES): 15% of monthly generation (17% before Jan 2026)
The KÜPST unit price equals 3% of max(MCP, SMP, 750 TL/MWh) for the relevant hour. Only the portion of imbalance that exceeds the tolerance band attracts the penalty.
Unit Cost (TL/MWh)
Unit cost = (Total Imbalance Cost + Total KÜPST Cost) ÷ Total Generation for the month, expressed in TL/MWh. It provides a scale-independent measure of settlement efficiency, allowing fair comparison across plants of different capacity.
Plant Rankings
Plants are ranked by their monthly imbalance percentage, defined as |Net Imbalance MWh| ÷ Generation MWh × 100. A lower value indicates better forecast accuracy. The bar chart shows the best and worst performers for the selected month; the full ranked list appears in the table below.
Coverage & Exclusions
A plant is excluded from a given month's ranking — while remaining in the registry — in either of these cases:
  • Zero activity: the plant reported zero generation and zero forecast for the whole month.
  • Insufficient forecast coverage: the plant has both a forecast and an actual value for less than half of the month's hours — typically a unit commissioned or registered mid-month. Its imbalance ratio would not be comparable with a full-month plant, so it is listed rather than ranked.
Every excluded plant is listed below with its reason.

KARAPINAR YEKA-1 (approx. 1,365 MW) is excluded from the plant statistics due to its outsized scale. Its performance is reported separately.

Plants excluded this month
ELAZIĞ HİBRİT BES/GESZero production and zero forecast for the entire period
ALİAĞA-1 GESBalancing Power Market (DGP) participant / commanded curtailment — not a forecast imbalance
ARTUKLU-1 GESBalancing Power Market (DGP) participant / commanded curtailment — not a forecast imbalance
IĞDIR DGESBalancing Power Market (DGP) participant / commanded curtailment — not a forecast imbalance
NEPSUN HADİM GESBalancing Power Market (DGP) participant / commanded curtailment — not a forecast imbalance
OZE DEPOLAMALI GESBalancing Power Market (DGP) participant / commanded curtailment — not a forecast imbalance
PAMUK GESBalancing Power Market (DGP) participant / commanded curtailment — not a forecast imbalance
This report is based entirely on publicly available data published by EPİAŞ. All figures are derived from open settlement data; Algopoly accepts no liability for decisions made based on this content.