How the Hestiya Marketplace Works

A Complete Guide to Buying and Retiring Carbon Credits

Start Your Sustainability Journey with Hestiya

Most organizations reach the same point eventually. Emissions have been measured, internal reductions made where practical, and a residual footprint remains that cannot be engineered away this year or next. The question becomes how to address what is left, credibly, without a six-month procurement process and a broker who will not explain their margin.

That is the gap the Hestiya Marketplace was built to close. It brings verified climate projects, live pricing, and retirement records onto a single platform, so the entire journey from evaluation to retirement happens in one place.

What you will need

  • ✓ Business details — registered company name, address, etc.
  • ✓ A named contact — whoever owns sustainability reporting.
  • ✓ Verification documents — required for permanent public records.
  • ✓ Reporting context — framework and Scope 1, 2, or 3 details.
Step 01

Create Your Hestiya Marketplace Account

How do I register? Visit the marketplace, provide your business details and contact information, complete verification, and your account is active. Business accounts require company registration details for compliance checks.

Verification exists for a reason worth understanding. When a credit is retired, it is retired in your organisation’s name and cannot be reversed or resold. The registry entry becomes part of the public record supporting your disclosure, so the platform confirms who you are before any retirement can be attributed to you.

Once verified, your dashboard becomes the working surface for everything that follows: available projects, holdings, retirement history, and the documentation supporting each transaction.

Filter and Compare

The marketplace lets you narrow projects by several dimensions at once: Project type (avoidance/removal), Geography, Standard, and Vintage.

Step 02

Browse and Buy Carbon Credits

How do I buy carbon credits? Filter projects by type, region, standard, and vintage, review the project documentation, select your volume, and complete the purchase at the live market price.

🔍 Read the project file before you buy

Every listing carries its underlying documentation: the methodology applied, the verification body, the audit history, co-benefits claimed, and the registry the credits sit in.

💳 Complete the purchase

Select your volume and confirm. Pricing is live rather than negotiated, so what you see is what you pay. Settlement is immediate and credits land in your account with their serial numbers attached.

Timing your retirement

Retire against the reporting year the emissions occurred in, not the year you happened to buy. Most organisations retire at the close of their reporting period once their inventory is final.

Step 03

Retire Carbon Credits

How do I retire carbon credits? Select the credits in your dashboard, choose the retirement volume and the reporting year they apply to, and confirm. Retirement is permanent, publicly recorded, and generates a certificate.

📜 What happens when you retire

You select the credits and attach them to a reporting entity. The platform then retires them in the registry under your organisation’s name. You receive a retirement certificate carrying the serial numbers, project, standard, and date.

📁 Recording it properly

Three things belong in your file alongside the certificate: which emissions the retirement addresses, why that project type was chosen, and what internal reductions preceded it.

Platform Overview

How the Hestiya Marketplace Process Works

It connects verified climate projects directly with buyers on one platform. Projects are screened and listed, buyers browse and purchase at live prices, and credits are retired into a permanent registry record — without brokers between the two sides.

Direct access, no intermediaries

Buyers transact with verified suppliers directly. Removing the brokerage layer removes both the cost and the information asymmetry that comes with it. You see the project, the price, and the documentation without a middle party deciding how much of it to show you.

Live pricing and immediate settlement

Prices move with the market rather than sitting in a negotiated quote that expires. Settlement is immediate, and delivery follows, so the gap between decision and completion is measured in minutes rather than weeks. Market-level pricing intelligence sits in Hestiya Intelligence, which tracks vintages and trends across global markets.

Traceability by design

Transactions are recorded on an immutable ledger. Serial numbers, ownership, and retirement status stay verifiable at every point, which closes off the double-counting risk that has damaged confidence in voluntary markets elsewhere.

Screening before listing

Projects are assessed against recognised standards before they appear. That does not remove your responsibility to read the documentation, but it means the baseline quality of what you are browsing has already been established. Project developers can list carbon credits and I-RECs through the same platform, and our guide on how to sell your carbon credits covers that side of the transaction.

Why Businesses Use Hestiya

Can businesses manage multiple assets? Yes. A single account holds carbon credits and renewable energy certificates across project types, regions, and reporting entities, with holdings and retirement history visible in one dashboard.

Most buyers arrive with a specific problem rather than a general interest in carbon markets. Four recur.

01

Fragmentation

Credits bought here, certificates bought there, records in three systems and a spreadsheet. One account holding both instruments removes the reconciliation work entirely.

02

Documentation gaps

Audit season arrives and the evidence exists but nobody can produce it quickly. Retirement certificates and transaction history stay exportable on demand.

03

Pricing opacity

Quotes that vary between brokers with no visible basis. Live market pricing removes the guesswork about whether you paid a fair price.

04

Supply chain pressure

Large customers increasingly screen suppliers on emissions credentials, and a documented retirement record answers that questionnaire far better than an intention.

The platform aligns to CDP, the GHG Protocol, GRI, CSRD, and RE100, so the documentation you receive already fits the format your disclosure team files in. More detail on the company and its approach sits on the about page.

Explore More Solutions from Hestiya

The marketplace is one part of a wider set of tools.

Frequently Asked Questions

1. How does Hestiya Marketplace work?

The platform connects verified climate projects directly with buyers. Projects are screened against recognised standards and listed with their documentation. Buyers browse, compare, and purchase at live market prices, then retire credits into a permanent registry record. No brokers sit between the two sides, and every transaction is traceable.

2. How do I register?

Create an account on the marketplace using a business email address, provide your company details and jurisdiction, and complete verification. Business accounts require registration documents because retirements are permanently attributed to your organisation. Registration takes a few minutes and verification is usually same-day.

3. How do I buy carbon credits?

Filter available projects by type, region, standard, and vintage. Review the project file, including methodology, verification body, and audit history. Select your volume and confirm at the live price. Credits settle to your account with serial numbers attached. There is no minimum purchase.

4. How do I retire carbon credits?

Select credits from your holdings, choose the volume and the reporting entity and year they apply to, and confirm. The credits are retired in the registry under your name, permanently and publicly. You receive a retirement certificate with serial numbers, project, standard, and date for your disclosure file.

5. Can businesses manage multiple assets?

Yes. One account holds carbon credits and renewable energy certificates across project types, geographies, and reporting entities. Holdings, retirement history, and supporting documentation are visible in a single dashboard and exportable when reporting season arrives.

6. What is the difference between holding and retiring a credit?

A held credit is a tradeable asset that can still be sold or transferred. A retired credit is permanently removed from circulation and attributed to you. Only retirement supports an offsetting claim, which is why holding credits without retiring them does not reduce your reported emissions.

7. How long does the whole process take?

Registration and verification typically complete the same day. Once verified, browsing, purchasing, and retiring can all happen in a single session, since pricing is live and settlement is immediate. Most of your time is better spent reviewing project documentation than waiting on the transaction.

8. Where can I check current pricing?

Live pricing appears in the marketplace itself, and market-level trends across vintages and geographies sit in Hestiya Intelligence. For renewable electricity requirements specifically, the calculator will size your volume before you browse. You can also talk to an advisor about matching instruments to your reporting obligations.

Talk to an Advisor