{"id":33971,"date":"2026-11-06T02:25:13","date_gmt":"2026-11-06T02:25:13","guid":{"rendered":"https:\/\/www.othellointernational.com\/tgo-grid-factor-2-november-2026-cfo-net-zero-base-year\/"},"modified":"2026-11-06T02:25:46","modified_gmt":"2026-11-06T02:25:46","slug":"tgo-grid-factor-2-november-2026-cfo-net-zero-base-year","status":"publish","type":"post","link":"https:\/\/www.othellointernational.com\/th\/tgo-grid-factor-2-november-2026-cfo-net-zero-base-year\/","title":{"rendered":"TGO\u2019s 2 November Grid Factor Rule Can Give One Company Two Numbers for the Same Base Year"},"content":{"rendered":"<style>\n.obg{--r:#ED4036;--r1:#FF5046;--gold:#e0a93a;--ok:#3ddc84;--w:#fff;--w1:rgba(255,255,255,.85);--w2:rgba(255,255,255,.60);--w3:rgba(255,255,255,.42);--gl:rgba(255,255,255,.10);--card:linear-gradient(168deg,rgba(255,255,255,.055),rgba(255,255,255,.015));font-family:'Poppins',-apple-system,BlinkMacSystemFont,sans-serif;-webkit-box-sizing:border-box;box-sizing:border-box}\n.obg 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*\/\n.obg-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1px;background:var(--gl);border:1px solid var(--gl);border-radius:16px;overflow:hidden}\n.obg-stat{background:#0a0a0d;padding:26px 20px;text-align:center;position:relative}\n.obg-sn{font-family:'Fraunces',Georgia,serif;font-style:italic;font-weight:600;font-size:40px;color:var(--r);line-height:1;letter-spacing:-.01em}\n.obg-sn .u{font-size:.42em;font-family:'Poppins',sans-serif;font-style:normal;color:var(--w2);letter-spacing:.02em}\n.obg-sl{font-family:'Poppins',sans-serif;font-size:10.5px;letter-spacing:.08em;color:var(--w2);margin-top:11px;line-height:1.45;text-transform:uppercase}\n\/* comparison table *\/\n.obg-tw{overflow-x:auto;border:1px solid var(--gl);border-radius:16px;background:linear-gradient(168deg,rgba(255,255,255,.04),rgba(255,255,255,.012))}\n.obg-table{width:100%;border-collapse:collapse;font-size:14px;min-width:520px}\n.obg-table th,.obg-table td{padding:14px 16px;text-align:left;border-bottom:1px solid rgba(255,255,255,.07);vertical-align:top;line-height:1.45;color:var(--w1)}\n.obg-table thead th{font-family:'Poppins',sans-serif;font-size:10.5px;letter-spacing:.07em;text-transform:uppercase;color:var(--w);font-weight:700;background:rgba(255,255,255,.04)}\n.obg-table thead th.hi{color:var(--r1);background:rgba(237,64,54,.12)}\n.obg-table tbody th{font-family:'Poppins',sans-serif;font-size:10px;letter-spacing:.04em;text-transform:uppercase;color:var(--w2);font-weight:700;white-space:nowrap;background:rgba(255,255,255,.02)}\n.obg-table td.hi{color:var(--w);background:rgba(237,64,54,.07)}\n.obg-table tr:last-child th,.obg-table tr:last-child td{border-bottom:0}\n.obg-yes{color:var(--ok);font-weight:600}.obg-no{color:var(--r1);font-weight:600}\n\/* process flow *\/\n.obg-flow{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:13px}\n.obg-step{background:var(--card);border:1px solid var(--gl);border-radius:14px;padding:22px 20px;position:relative;overflow:hidden}\n.obg-step::after{content:\"\";position:absolute;top:0;left:0;width:100%;height:2px;background:linear-gradient(90deg,var(--r),var(--gold));transform:scaleX(0);transform-origin:left;transition:transform .4s}\n.obg-step:hover::after{transform:scaleX(1)}\n.obg-snum{font-family:'Fraunces',Georgia,serif;font-style:italic;color:#fff;font-size:17px;font-weight:600;width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:linear-gradient(140deg,var(--r),#C2261C);margin-bottom:14px}\n.obg-sh{font-size:15.5px;font-weight:600;color:var(--w);margin:0 0 5px}\n.obg-sp{font-size:13px;color:var(--w2);line-height:1.5;margin:0}\n\/* pull quote *\/\n.obg-quote{border-left:3px solid var(--r);padding:6px 0 6px 26px;margin:32px 0}\n.obg-quote p{font-family:'Fraunces',Georgia,serif;font-style:italic;font-size:22px;line-height:1.4;color:var(--w);margin:0;font-weight:500}\n.obg-quote cite{display:block;margin-top:12px;font-family:'Poppins',sans-serif;font-style:normal;font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--r1);font-weight:600}\n\/* callout \/ CTA band *\/\n.obg-band{background:linear-gradient(150deg,rgba(237,64,54,.13),rgba(255,255,255,.02));border:1px solid rgba(237,64,54,.3);border-radius:16px;padding:26px 30px;position:relative;overflow:hidden}\n.obg-band::before{content:\"\";position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--r),var(--gold))}\n.obg-band h4{font-family:'Fraunces',Georgia,serif;font-size:21px;font-weight:600;color:var(--w);margin:0 0 8px;line-height:1.2}\n.obg-band p{font-size:14.5px;color:var(--w1);line-height:1.6;margin:0 0 16px}\n.obg-cta{display:inline-flex;align-items:center;gap:9px;background:var(--r);color:#fff!important;text-decoration:none;font-family:'Poppins',sans-serif;font-size:13px;font-weight:600;letter-spacing:.04em;padding:12px 22px;border-radius:8px;transition:all .3s}\n.obg-cta:hover{background:var(--r1);transform:translateY(-2px);box-shadow:0 12px 30px -8px rgba(237,64,54,.5)}\n.obg-cta::after{content:\"\\2192\";transition:transform .3s}\n.obg-cta:hover::after{transform:translateX(4px)}\n\/* fact \/ at-a-glance grid *\/\n.obg-facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:13px}\n.obg-fact{background:var(--card);border:1px solid var(--gl);border-radius:13px;padding:20px 20px}\n.obg-fact .obg-fh{font-family:'Poppins',sans-serif;font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--r1);font-weight:700;margin-bottom:9px}\n.obg-fact p{font-size:13.5px;color:var(--w1);line-height:1.55;margin:0}\n.obg-fact p b{color:var(--w)}\n\/* fix legacy light-theme related-reading box -> dark brand (inline styles beaten with !important) *\/\n.oth-related,.oth-related-reading{background:linear-gradient(168deg,rgba(255,255,255,.055),rgba(255,255,255,.015))!important;border:1px solid rgba(255,255,255,.1)!important;border-left:3px solid #ED4036!important;border-radius:14px!important;color:rgba(255,255,255,.85)!important}\n.oth-related p,.oth-related-reading p,.oth-related strong,.oth-related-reading strong,.oth-related b,.oth-related-reading b{color:#fff!important}\n.oth-related a,.oth-related-reading a{color:#FF5046!important}\n.oth-related li,.oth-related-reading li,.oth-related span,.oth-related-reading span{color:rgba(255,255,255,.85)!important}\n@media(max-width:640px){\n  .obg-toc ol{grid-template-columns:1fr}\n  .obg-quote p{font-size:19px}\n  .obg-band{padding:22px 20px}\n}\n<\/style>\n<p>On 2 November 2026 the Thailand Greenhouse Gas Management Organization (TGO) published a one-page notice that takes effect the same day. It tells organisations which grid electricity factor to use for Scope 2, depending on the year of the data. It also treats two kinds of base year differently: a Carbon Footprint for Organization (CFO) base year can stay as certified, while a certified Net Zero base year from 2022 onward has to be recalculated.<\/p>\n\n<p>It is a short notice, but it reaches the numbers listed companies publish. Any company using one base year for both purposes should read it before its FY2026 inventory closes.<\/p>\n\n<!--OBG-G--><div class=\"obg obg-stats\"><div class=\"obg-stat\"><div class=\"obg-sn\">0.4999<\/div><div class=\"obg-sl\">kgCO&lt;sub&gt;2&lt;\/sub&gt;e\/kWh for data from 2021 or earlier<\/div><\/div><div class=\"obg-stat\"><div class=\"obg-sn\">0.4750<\/div><div class=\"obg-sl\">kgCO&lt;sub&gt;2&lt;\/sub&gt;e\/kWh for data from 2022 onward<\/div><\/div><div class=\"obg-stat\"><div class=\"obg-sn\">\u22124.98<span class=\"u\">%<\/span><\/div><div class=\"obg-sl\">Scope 2 change on identical electricity use<\/div><\/div><div class=\"obg-stat\"><div class=\"obg-sn\">14<\/div><div class=\"obg-sl\">days to TGO\u2019s next document deadline, 20 November<\/div><\/div><\/div><!--\/OBG-G-->\n\n<!--OBG-G--><div class=\"obg obg-toc\"><div class=\"obg-lb\">What this guide covers<\/div><ol><li><a href=\"#what-tgo-issued-on-2-november\">What TGO issued on 2 November<\/a><\/li><li><a href=\"#how-one-company-ends-up-with-two-numbers\">How one company ends up with two numbers<\/a><\/li><li><a href=\"#the-5-your-scope-2-chart-may-show-without-any-action\">The 5% your Scope 2 chart may show without any action<\/a><\/li><li><a href=\"#what-the-notice-does-not-settle\">What the notice does not settle<\/a><\/li><li><a href=\"#why-the-english-edition-has-to-carry-this\">Why the English edition has to carry this<\/a><\/li><li><a href=\"#where-the-evidence-runs-out\">Where the evidence runs out<\/a><\/li><li><a href=\"#what-to-do-before-the-next-tgo-round\">What to do before the next TGO round<\/a><\/li><\/ol><\/div><!--\/OBG-G-->\n\n<h2 id=\"what-tgo-issued-on-2-november\">What TGO issued on 2 November<\/h2>\n<p>TGO published the 0.4750 factor on 26 November 2025. Its <a href=\"https:\/\/thaicarbonlabel.tgo.or.th\/admin\/uploadfiles\/emission\/ts_578cd2cb78.pdf\" target=\"_blank\" rel=\"noopener\">CFO emission factor file<\/a> makes the factor mandatory from 1 January 2026, based on the 2022&ndash;2024 grid mix, and notes that the older 0.4999 factor, based on the 2016&ndash;2018 mix, could be used until 31 March 2026. What was missing was an instruction on history. The <a href=\"https:\/\/thaicarbonlabel.tgo.or.th\/admin\/uploadfiles\/files\/ts_1d050f57b7.pdf\" target=\"_blank\" rel=\"noopener\">2 November notice<\/a>, issued by TGO\u2019s Low Carbon Business Certification Office, now provides one.<\/p>\n\n<!--OBG-G--><div class=\"obg obg-tw\"><table class=\"obg-table\"><thead><tr><th><\/th><th class=\"\">CFO<\/th><th class=\"hi\">Net Zero<\/th><\/tr><\/thead><tbody><tr><th>Base year already certified by TGO<\/th><td class=\"\"><b>No recalculation needed.<\/b> Follow the base-year policy in your own manual<\/td><td class=\"hi\"><b>Must be recalculated<\/b> if the base-year data is from 2022 onward<\/td><\/tr><tr><th>Can you recalculate anyway?<\/th><td class=\"\">Yes, using the factor for that data year<\/td><td class=\"hi\">Required, using the factor for that data year<\/td><\/tr><tr><th>Data year 2021 or earlier<\/th><td class=\"\">0.4999<\/td><td class=\"hi\">0.4999<\/td><\/tr><tr><th>Data year 2022 onward<\/th><td class=\"\">0.4750<\/td><td class=\"hi\">0.4750<\/td><\/tr><\/tbody><\/table><\/div><!--\/OBG-G-->\n\n<!--OBG-G--><div class=\"obg obg-quote\"><p>\u0e43\u0e2b\u0e49\u0e2d\u0e07\u0e04\u0e4c\u0e01\u0e23\u0e04\u0e33\u0e19\u0e27\u0e13\u0e1b\u0e35\u0e10\u0e32\u0e19\u0e43\u0e2b\u0e21\u0e48<\/p><cite>TGO notice, 2 November 2026, on certified Net Zero base-year data from 2022 onward. In English: the organisation is to recalculate its base year.<\/cite><\/div><!--\/OBG-G-->\n\n<h2 id=\"how-one-company-ends-up-with-two-numbers\">How one company ends up with two numbers<\/h2>\n<p>The two tracks are connected. TGO\u2019s <a href=\"https:\/\/thaicarbonlabel.tgo.or.th\/admin\/uploadfiles\/files\/ts_7486102b7a.pdf\" target=\"_blank\" rel=\"noopener\">revised Net Zero criteria<\/a> build the base year on data holding a TGO CFO mark. So take a company whose 2023 base year was certified while 0.4999 was still in use, and which has since entered the Net Zero track.<\/p>\n\n<p>Under the notice, the CFO base year may stay where it is, and the Net Zero base year for the same 2023 data must move. Unless the company chooses to recalculate its CFO base year too, it now holds two valid Scope 2 figures for 2023. This is our reading of the notice, not a TGO statement, but it follows directly from the two instructions.<\/p>\n\n<p>The Net Zero recalculation also has a consequence beyond the Scope 2 figure itself. The criteria measure the required cut of at least 90% against the base year (\u00a75.4), and cap removal-credit offsets for the remainder at 10% of base-year emissions (\u00a79.3.1). A lower base year therefore means fewer tonnes of permitted residual. In the example below, the cap on that Scope 2 portion falls by about 50 tonnes.<\/p>\n\n<h2 id=\"the-5-your-scope-2-chart-may-show-without-any-action\">The 5% your Scope 2 chart may show without any action<\/h2>\n<p>The CFO relief has its own effect on reported trends. A company that keeps a base year from 2021 or earlier at 0.4999 and reports FY2026 at 0.4750 will show a Scope 2 reduction even if its electricity use has not changed at all.<\/p>\n\n<!--OBG-G--><div class=\"obg obg-tw\"><table class=\"obg-table\"><thead><tr><th><\/th><th class=\"\">\u0e1b\u0e31\u0e08\u0e08\u0e31\u0e22<\/th><th class=\"hi\">Scope 2 result<\/th><\/tr><\/thead><tbody><tr><th>Illustrative use: 20,000 MWh, data year 2021 or earlier<\/th><td class=\"\">0.4999<\/td><td class=\"hi\">9,998 tCO<sub>2<\/sub>e<\/td><\/tr><tr><th>Same 20,000 MWh, data year 2022 onward<\/th><td class=\"\">0.4750<\/td><td class=\"hi\">9,500 tCO<sub>2<\/sub>e<\/td><\/tr><tr><th>Difference with no change in electricity use<\/th><td class=\"\">\u2014<\/td><td class=\"hi\"><b>\u2212498 tCO<sub>2<\/sub>e (\u22124.98%)<\/b><\/td><\/tr><\/tbody><\/table><\/div><!--\/OBG-G-->\n\n<p>This is not an error. The factor reflects a change in the national grid mix, and TGO has said the base year may stand. But it is not the result of anything the company did, and a reader of a sustainability report will assume otherwise unless told. The <a href=\"https:\/\/ghgprotocol.org\/sites\/default\/files\/standards\/ghg-protocol-revised.pdf\" target=\"_blank\" rel=\"noopener\">GHG Protocol Corporate Standard<\/a> requires a company to set a base-year recalculation policy and state any significance threshold, and lists improved emission factors with a significant impact among the recalculation triggers. It does not define \u201csignificant\u201d. Whether 5% on Scope 2 crosses your threshold is a judgement to make on purpose and document.<\/p>\n\n<h2 id=\"what-the-notice-does-not-settle\">What the notice does not settle<\/h2>\n<p>The notice runs to one page, and several questions remain open. We would put these to TGO in writing, at the contact on its carbon label site, rather than assume an answer:<\/p>\n\n<!--OBG-G--><div class=\"obg obg-facts\"><div class=\"obg-fact\"><div class=\"obg-fh\">Years between<\/div><p>It addresses base years. It does not say what happens to certified inventories for later years that used 0.4999, such as FY2024.<\/p><\/div><div class=\"obg-fact\"><div class=\"obg-fh\">\u0e01\u0e32\u0e23\u0e08\u0e31\u0e14\u0e40\u0e27\u0e25\u0e32<\/div><p>It sets no deadline for the Net Zero recalculation, only an effective date.<\/p><\/div><div class=\"obg-fact\"><div class=\"obg-fh\">Re-verification<\/div><p>It does not say whether a recalculated base year must be verified again.<\/p><\/div><div class=\"obg-fact\"><div class=\"obg-fh\">Other factors<\/div><p>It covers Scope 2 only. The upstream Scope 3 electricity factor also moved, from 0.0987 to 0.0812, and CFP moved from 0.5986 to 0.5562. Neither is mentioned.<\/p><\/div><\/div><!--\/OBG-G-->\n\n<h2 id=\"why-the-english-edition-has-to-carry-this\">Why the English edition has to carry this<\/h2>\n<p>This notice is in Thai. TGO\u2019s English download page links to the same Thai PDF, and we found no English version. The people who read your FY2026 English report will not see the distinction unless your report explains it.<\/p>\n\n<p>That matters for three reasons we can document. <a href=\"\/th\/ftse-english-disclosure\/\">FTSE Russell<\/a> scores from public disclosure with no questionnaire. Its <a href=\"https:\/\/www.lseg.com\/content\/dam\/ftse-russell\/en_us\/documents\/policy-documents\/ftse-faq-document-ftse-russell-esg-scores-and-indices.pdf\" target=\"_blank\" rel=\"noopener\">FAQ \u00a71.8<\/a> recognises the importance of local languages, but Thai is not among the key languages it names, and <a href=\"https:\/\/setsustainability.com\/storage\/files\/32\/Questions_from_Q_and_A_sessions_all.pdf\" target=\"_blank\" rel=\"noopener\">SET\u2019s Q&amp;A 16<\/a> recommends English disclosure because FTSE assesses primarily from English. S&amp;P Global\u2019s <a href=\"https:\/\/portal.s1.spglobal.com\/survey\/documents\/Language_Policy.pdf\" target=\"_blank\" rel=\"noopener\">language policy<\/a> says it may machine-translate non-English evidence and takes no responsibility for translation errors. And <a href=\"https:\/\/www.cdp.net\/en\/terms-of-disclosure\" target=\"_blank\" rel=\"noopener\">CDP\u2019s terms<\/a> state a response in an unlisted language, which includes Thai, will not be scored.<\/p>\n\n<p>Translating the term is the easy part: \u0e04\u0e33\u0e19\u0e27\u0e13\u0e1b\u0e35\u0e10\u0e32\u0e19\u0e43\u0e2b\u0e21\u0e48 is \u201cbase-year recalculation\u201d. The harder part is carrying the whole method across, consistently, so the English report states:<\/p>\n\n<!--OBG-G--><div class=\"obg obg-flow\"><div class=\"obg-step\"><div class=\"obg-snum\">1<\/div><div class=\"obg-sh\">Which base year<\/div><div class=\"obg-sp\">Name it, and say whether the figure is the CFO base year or the Net Zero base year. If they differ, show both.<\/div><\/div><div class=\"obg-step\"><div class=\"obg-snum\">2<\/div><div class=\"obg-sh\">Which factor<\/div><div class=\"obg-sp\">Give the factor and its grid-mix vintage for the base year and for the current year.<\/div><\/div><div class=\"obg-step\"><div class=\"obg-snum\">3<\/div><div class=\"obg-sh\">What drove the change<\/div><div class=\"obg-sp\">Separate the factor effect from real reductions in the Scope 2 trend.<\/div><\/div><div class=\"obg-step\"><div class=\"obg-snum\">4<\/div><div class=\"obg-sh\">What was verified<\/div><div class=\"obg-sp\">State which figures the verifier covered, and whether a recalculated figure has been re-verified.<\/div><\/div><\/div><!--\/OBG-G-->\n\n<p>This becomes more than a housekeeping point for SET50 companies. Their first <a href=\"\/th\/set50-first-climate-disclosure\/\">mandatory ISSB reporting year is FY2027<\/a>, with the first filing in 2028. The SEC\u2019s <a href=\"https:\/\/www.sec.or.th\/TH\/Documents\/Seminars\/56-1-OneReport-S.pdf\" target=\"_blank\" rel=\"noopener\">One Report-S seminar deck<\/a> makes the 2004 GHG Protocol the default and allows TGO\u2019s method during the five-year relief. It describes the two as not materially different for Scope 1 and 2, but flags that a power buyer\u2019s Scope 2 under the GHG Protocol excludes transmission losses. Ask your verifier how your factor treats that. The deck is not the final form, so check the form itself before relying on these details. Our work on <a href=\"\/th\/tsrs-s1-s2-bilingual-disclosure\/\">IFRS S1 and S2 disclosure<\/a> starts from that mapping.<\/p>\n\n<h2 id=\"where-the-evidence-runs-out\">Where the evidence runs out<\/h2>\n<p>We have no evidence that any rater has marked a company down over this factor, or that FTSE Russell\u2019s methodology looks at base-year factor choices at all. We also found no count of how many companies hold a certified Net Zero base year from 2022 onward, so we cannot size the group affected. TGO\u2019s <a href=\"https:\/\/www.cdp.net\/en\/disclose\/verification\" target=\"_blank\" rel=\"noopener\">verification protocol is on CDP\u2019s accepted list<\/a>, so a TGO-based number is not a weakness in itself, although CDP also asks for an accredited third-party provider. And for a company with little purchased electricity, 5% of Scope 2 may be immaterial. The case for acting is control over a number you publish, not a penalty we can point to.<\/p>\n\n<h2 id=\"what-to-do-before-the-next-tgo-round\">What to do before the next TGO round<\/h2>\n<p>TGO\u2019s <a href=\"https:\/\/thaicarbonlabel.tgo.or.th\/\" target=\"_blank\" rel=\"noopener\">published schedule<\/a> gives the next round, 2\/2570, a document deadline of <strong>20 November 2026<\/strong>, a fee date of 24 November, meetings on 8 and 23 December, and results on the evening of 23 December. The round after that, 3\/2570, takes documents by 25 January 2027. CFO certificates on the register, read on 6 November, run for one year, so most holders return to these questions at renewal. The register shows 1,425 records under valid licence, out of 4,624 issued, and 25 registered CFO verification bodies. Those are site-level certificate records rather than companies.<\/p>\n\n<!--OBG-G--><div class=\"obg obg-take\"><div class=\"obg-lb\">Key takeaways<\/div><ul><li>Check every base year you publish: its data year, the factor it used, and whether it serves CFO, Net Zero, or both.<\/li><li>If you hold a certified Net Zero base year from 2022 onward, plan the recalculation and re-run your 90% target and 10% residual cap in tonnes.<\/li><li>Decide whether to recalculate your <a href=\"\/th\/tgo-cfo-certification\/\">CFO base year<\/a> too, and record the reason in your base-year policy.<\/li><li>Label the factor effect in your Scope 2 trend, in both editions, so it is not read as a reduction you achieved.<\/li><li>Use <a href=\"\/th\/technical-translation\/\">ISO 17100 Translate-Edit-Proofread<\/a> with a locked term list, so Thai and English describe the same method and the same base year.<\/li><\/ul><\/div><!--\/OBG-G-->\n\n<!--OBG-G--><div class=\"obg obg-band\"><h4>Do your carbon numbers say the same thing in both editions?<\/h4><p>We build the TGO-certified inventory, trace each figure into your disclosure, and check the English edition against the Thai, line by line.<\/p><a class=\"obg-cta\" href=\"\/th\/ftse-disclosure-gap-audit\/\">\u0e17\u0e14\u0e25\u0e2d\u0e07\u0e43\u0e0a\u0e49 Gap Audit \u0e1f\u0e23\u0e35<\/a><\/div><!--\/OBG-G-->\n\n<p>For how TGO data reaches rated disclosure, see <a href=\"\/th\/tgo-carbon-to-ftse-disclosure\/\">TGO carbon to FTSE disclosure<\/a>. Dates across the Thai calendar are in our <a href=\"\/th\/esg-regulatory-tracker\/\">ESG regulatory tracker<\/a>.<\/p>\n\n<p style=\"font-size:13px;color:rgba(255,255,255,.5)\"><em>Sources, read 6 November 2026: TGO, guidance on the electricity emission factor for CFO and Net Zero (2 Nov 2026); TGO CFO emission factor file (Feb 2569); TGO Net Zero criteria, revision 1 (Jul 2569); TGO round schedule and registers; GHG Protocol Corporate Standard, ch. 5; SEC Thailand, 56-1 One Report-S seminar deck (Oct 2026); FTSE Russell ESG Scores FAQ v1.5; SET Q&amp;A sessions; S&amp;P Global CSA Language Policy; CDP Terms of Disclosure and verification list. Worked figures are illustrative and our own. This article is general information, not advice on your inventory.<\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>TGO\u2019s 2 November notice ties the Scope 2 grid factor to the data year. CFO base years may stay; certified Net Zero base years from 2022 must be recalculated.<\/p>","protected":false},"author":1,"featured_media":33972,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","_yoast_wpseo_focuskw":"","_yoast_wpseo_canonical":"","rank_math_title":"TGO Grid Factor Rule: CFO and Net Zero Base Years | Othello","rank_math_description":"TGO\u2019s 2 Nov 2026 notice sets 0.4999 or 0.4750 by data year. 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