--- title: Guarantees of Origin (GOs) Guide | GreenPowerHub description: Learn what Guarantees of Origin are, how GO prices work, and how to buy, sell, trade, manage, or route certificates across supported markets. --- Guarantees of Origin guide # Understand Guarantees of Origin and find the right renewable certificate workflow. GreenPowerHub helps buyers, sellers, and traders connect GO and EAC questions to market coverage, price context, RFQs, marketplace activity, and trade workflow. [Find your certificate workflow](https://www.greenpowerhub.com/guarantees-of-origin#go-workflows) [Search certificate coverage](https://www.greenpowerhub.com/platform/certificate-markets?hsLang=en) 60+ countries supported across certificate markets. Certificate route **From GO question to market workflow** Learn **What GOs are and which workflow fits** Act **Price, buy, sell, trade, manage** Route **EECS, I-REC, REGO, RECS, Elcert** Start by search intent ## What do you need to do with Guarantees of Origin? A Guarantee of Origin is an electronic certificate used in European renewable electricity disclosure. It records where renewable electricity attributes were produced, but it is not the same as physical electricity delivery. Start with the job in front of you, then move into the right market or product workflow. Definition ### Understand what a GO certificate proves Use the basics section if you need the plain-language definition, how GOs relate to EACs, and why certificates do not deliver physical electricity. [Read GO definition](https://www.greenpowerhub.com/guarantees-of-origin#go-basics) Prices ### Review what affects GO certificate prices Prices can vary by country, vintage, technology, volume, timing, and market conditions. GreenPowerHub does not set prices. [Open GO prices guide](https://www.greenpowerhub.com/guarantees-of-origin/prices?hsLang=en) Buy ### Buy Guarantees of Origin through a structured request Define country, market, volume, vintage, technology, and documentation requirements before comparing offers. [Open buying guide](https://www.greenpowerhub.com/guarantees-of-origin/how-to-buy?hsLang=en) Sell ### Sell or surface GO supply for buyer review Help buyers evaluate certificate market, volume, vintage, technology, delivery route, and documentation status. [Open selling guide](https://www.greenpowerhub.com/guarantees-of-origin/how-to-sell?hsLang=en) Trade ### Compare GO trading platform workflows Review posted interest, RFQs, marketplace context, partner status, and trade workflow before engaging counterparties. [Open trading platform guide](https://www.greenpowerhub.com/guarantees-of-origin/trading-platform?hsLang=en) Broker alternative ### Compare broker, marketplace, and RFQ routes Use this when the search is really about counterparty access, introductions, supply discovery, or repeatable sourcing workflow. [Open broker alternatives guide](https://www.greenpowerhub.com/guarantees-of-origin/broker?hsLang=en) Management ### Manage GO sourcing, data, and documentation Keep market, product, RFQ, trade, documentation, and cancellation or retirement context organized across repeated activity. [Open GO management guide](https://www.greenpowerhub.com/guarantees-of-origin/management?hsLang=en) Scheme routing ### Find the right certificate system Route from the broad GO search term into EECS, I-REC, UK REGO, RECS, Elcert, or the certificate market lookup. [Choose certificate route](https://www.greenpowerhub.com/guarantees-of-origin#certificate-route) Scheme routing ## Which renewable certificate market do you need? Guarantees of Origin is often used as a broad search term. The right next step depends on the geography, certificate system, intended use, and market workflow in front of you. Europe ### EECS and European GOs Use the EECS guide for AIB, European Guarantees of Origin, and European GO sourcing or trading workflows. [Open EECS guide](https://www.greenpowerhub.com/eecs?hsLang=en) International ### I-REC Use the I-REC guide for international renewable electricity certificates outside many European GO contexts. [Open I-REC guide](https://www.greenpowerhub.com/i-rec?hsLang=en) United Kingdom ### UK REGO Use the REGO guide for UK Renewable Energy Guarantees of Origin and UK-specific certificate activity. [Open UK REGO guide](https://www.greenpowerhub.com/rego?hsLang=en) North America ### RECS Use the RECS guide for US and Canadian renewable energy certificate context and marketplace workflows. [Open RECS guide](https://www.greenpowerhub.com/recs?hsLang=en) Norway and Sweden ### Elcert Use the Elcert guide for the Norway and Sweden electricity certificate scheme and how it differs from GOs. [Open Elcert guide](https://www.greenpowerhub.com/elcert?hsLang=en) [Search every supported certificate market.](https://www.greenpowerhub.com/platform/certificate-markets?hsLang=en) Public GreenPowerHub metrics Used by buyers, sellers, traders, utilities, and service providers across renewable certificate markets. **60+** Countries supported across certificate markets **700+** Companies registered **100+ TWh** Energy certificates traded For buyers ## Buy GOs and EACs with the right market boundary, attributes, and documentation in view. Buyers searching for Guarantees of Origin often need to turn a broad renewable electricity goal into specific certificate requirements: market, country, production year, technology, volume, delivery route, cancellation, and intended claim. GreenPowerHub helps procurement and sustainability teams structure requests, compare supplier responses, and connect certificate choices to practical market workflows. [Create a structured RFQ](https://www.greenpowerhub.com/platform/rfq?hsLang=en) [Check certificate coverage](https://www.greenpowerhub.com/platform/certificate-markets?hsLang=en) [Compare buying paths](https://www.greenpowerhub.com/buy-energy-attribute-certificates?hsLang=en) [Read how to buy GOs](https://www.greenpowerhub.com/guarantees-of-origin/how-to-buy?hsLang=en) ### Buyer questions to answer - Which certificate system fits the country or market? - Which production year and period are needed? - Which technology, origin, or label matters? - Is cancellation or redemption required? - What documentation will the claim require? - How should offers be compared? For sellers ## Make renewable certificate supply easier for buyers to evaluate. Sellers need to present supply in a way that buyers and traders can compare: certificate system, country, production period, technology, volume, delivery route, and counterparty context. GreenPowerHub helps sellers and certificate holders surface relevant opportunities while keeping market activity, price context, and partner controls close to the workflow. [Explore marketplace workflows](https://www.greenpowerhub.com/platform/marketplace?hsLang=en) [Review partner controls](https://www.greenpowerhub.com/platform/partner-network?hsLang=en) [Read how to sell GOs](https://www.greenpowerhub.com/guarantees-of-origin/how-to-sell?hsLang=en) ### Seller value drivers - Supply and asset visibility - Demand discovery from qualified participants - Pricing context before listing or responding - Counterparty and partner controls - Digital workflow from interest to next action For traders ## Compare certificate markets, monitor price context, and move toward trade workflow. Traders often need to move between scheme names, regional origins, product attributes, posted interest, counterparties, and documentation steps. GreenPowerHub brings marketplace activity, closing prices where available, partner status, and trade workflow into one practical surface. [GO trading platform](https://www.greenpowerhub.com/guarantees-of-origin/trading-platform?hsLang=en) [GO prices](https://www.greenpowerhub.com/guarantees-of-origin/prices?hsLang=en) [Marketplace](https://www.greenpowerhub.com/platform/marketplace?hsLang=en) [Closing prices](https://www.greenpowerhub.com/platform/closing-prices?hsLang=en) Market scope **EECS, I-REC, REGO, RECS, Elcert, and related markets** Price context **Posted interest and closing prices where available** Workflow **Counterparties, confirmation, signing, documentation** Scheme routing ## GOs, EACs, and related certificate systems are not the same thing. Customers often use "Guarantees of Origin" as a broad search term. Public pages should keep the market names separate so visitors can find the right workflow without treating one scheme as a subcategory of another. EECS European Guarantees of Origin and AIB-related workflows. I-REC International renewable electricity certificate markets. UK REGO United Kingdom Renewable Energy Guarantees of Origin. RECS US and Canadian renewable energy certificate contexts. Elcert Norway and Sweden electricity certificate scheme. Other markets GEC, TIGR, T-REC, K-REC, LGC, STC, J-Credit, NFC, and more. Coverage lookup ## Check the country, market, or certificate label before you act. Do not rely on a static page to answer every country or scheme question. Use the coverage lookup to search the current public market view, then move into the product workflow that fits your role. EECS I-REC UK REGO RECS Elcert GEC China TIGR J-Credit [Search all certificate markets](https://www.greenpowerhub.com/platform/certificate-markets?hsLang=en) GO and EAC basics ## What is a Guarantee of Origin? A Guarantee of Origin is an electronic energy certificate used in European renewable electricity disclosure. It carries information about the energy source, production period, country of issue, plant, technology, certificate size, and other attributes. Energy attribute certificate, or EAC, is the broader category. It can include European GOs, I-REC, RECs, UK REGOs, Elcerts, and other market-specific instruments. Each market has its own rules, registry context, and terminology. Certificates do not route physical electricity to a buyer. They assign and document renewable electricity attributes through a registry and cancellation or retirement process. [ AIB renewable Guarantees of Origin ](https://www.aib-net.org/certification/certificates-supported/renewable-energy-guarantees-origin) [ US EPA REC overview ](https://www.epa.gov/green-power-markets/renewable-energy-certificates-recs) [ GHG Protocol Scope 2 Guidance ](https://ghgprotocol.org/scope-2-guidance) FAQ ## Guarantees of Origin questions by intent. ### Buyer questions What is a Guarantee of Origin? A Guarantee of Origin is an electronic certificate used in European renewable electricity disclosure. It records certificate attributes such as energy source, production period, country, plant, and technology. How do I buy Guarantees of Origin? Start by defining the market, origin, production year, technology, volume, timing, and documentation requirements. GreenPowerHub can help structure that into an RFQ or market workflow. Use the [GO buying guide](https://www.greenpowerhub.com/guarantees-of-origin/how-to-buy?hsLang=en) for a step-by-step buyer checklist. What affects GO certificate prices? Prices can vary by country, production year, technology, support status, labels, delivery route, volume, and market conditions. GreenPowerHub does not set certificate prices. Use the [GO prices guide](https://www.greenpowerhub.com/guarantees-of-origin/prices?hsLang=en) for the full pricing context. Can GOs be used for Scope 2 reporting? GOs can be part of renewable electricity sourcing, but the right reporting treatment depends on the applicable guidance, market boundary, certificate details, and intended claim. ### Seller and trader questions Can sellers list renewable certificate supply? Yes. Sellers can list renewable certificate supply in GreenPowerHub when their product and account setup support the relevant market, then use marketplace and partner workflows to manage visibility, counterparties, and next steps. Use the [GO selling guide](https://www.greenpowerhub.com/guarantees-of-origin/how-to-sell?hsLang=en) for seller-specific details. What is a Guarantees of Origin trading platform? A GO trading platform gives buyers, sellers, and traders a structured place to review market context, posted interest, RFQs, counterparties, and trade workflow. Use the [GO trading platform guide](https://www.greenpowerhub.com/guarantees-of-origin/trading-platform?hsLang=en) for the workflow comparison. Do I need a Guarantees of Origin broker? A broker can help with relationship-led market access, but a platform can add repeatable RFQ, marketplace, partner, and documentation workflow. Use the [GO broker alternatives guide](https://www.greenpowerhub.com/guarantees-of-origin/broker?hsLang=en) to compare routes. How does market context help traders? Market context helps traders compare visible interest, price movement where available, product attributes, and counterparty status before deciding what to engage on. Does GreenPowerHub set certificate prices? No. GreenPowerHub is a marketplace. Buyers, sellers, and traders set their own prices for bids, offers, and negotiated trades. GreenPowerHub helps participants see market context and manage the workflow, but pricing decisions stay with the market participants. What happens after an opportunity is accepted? Accepted opportunities can move into trade workflow for confirmation, signing, documentation, and next-step tracking. What is Guarantee of Origin management? GO management means keeping certificate requirements, market context, RFQ or marketplace activity, counterparty steps, documentation, and cancellation or retirement status organized. Use the [GO management guide](https://www.greenpowerhub.com/guarantees-of-origin/management?hsLang=en) for operational workflow details. ### Scheme questions Are GOs and EECS the same? No. EECS is the AIB-operated European certificate framework. Guarantees of Origin are the main certificate product transferred between AIB members. Are GOs and I-RECs the same? No. I-REC is an international certificate route used in many markets outside European GO contexts. Treat it as a related EAC system with its own rules and issuers. How are REGOs related to GOs? UK REGOs are the United Kingdom's Renewable Energy Guarantees of Origin scheme. Use the REGO page for UK-specific questions. How is Elcert different from a GO? Elcert is the Norway and Sweden electricity certificate scheme. Keep it scoped to that market rather than treating it as a general GO label. ### Market-system questions What is cancellation or retirement? Cancellation or retirement is the step where a certificate is used for a claim and can no longer be traded as an active certificate. Do certificates deliver physical electricity? No. Electricity flows through shared grids. Certificates assign and document renewable electricity attributes through market and registry systems. What is the residual mix? The residual mix represents electricity supply not covered by Guarantees of Origin or other reliable tracking mechanisms and helps reduce double counting. Where should I check country coverage? Use the GreenPowerHub certificate market lookup for the current public coverage view, then open the relevant scheme guide for more background. Official references ## Sources for GO and EAC facts. [ AIB renewable Guarantees of Origin ](https://www.aib-net.org/certification/certificates-supported/renewable-energy-guarantees-origin) [AIB EECS overview](https://www.aib-net.org/eecs) [I-TRACK Foundation](https://www.trackingstandard.org/) [ Ofgem REGO overview ](https://www.ofgem.gov.uk/environmental-and-social-schemes/renewable-Energy-guarantees-origin-rego) [ US EPA REC overview ](https://www.epa.gov/green-power-markets/renewable-energy-certificates-recs) [ Statnett Elcertificates and GOs ](https://www.statnett.no/en/for-stakeholders-in-the-power-industry/system-operation/the-power-market/elcertificates-and-guarantees-of-origin/) [ GHG Protocol Scope 2 Guidance ](https://ghgprotocol.org/scope-2-guidance) Next step ## Turn your GO question into the right certificate workflow. Start with the market you need, then move into sourcing, supply, trading, or coverage discovery. [Buy or source certificates](https://www.greenpowerhub.com/platform/rfq?hsLang=en) [Explore marketplace workflows](https://www.greenpowerhub.com/platform/marketplace?hsLang=en) [Check certificate market coverage](https://www.greenpowerhub.com/platform/certificate-markets?hsLang=en) [Open EECS guide](https://www.greenpowerhub.com/eecs?hsLang=en) English