Methane Gas Capture and Electricity Production at Kubratovo Wastewater Treatment Plant Sofia Bulgaria
Registry
Gold Standard
Project ID
GLD4238
Country
Category
Fuel Switching
Methodology
Status
Not stated
Credits Issued
698,624 tCO₂e
Credits Retired
508,356 tCO₂e
Data as of
1 June 2026
Credit Passport
How to read itIssuance and retirement by vintage
| Vintage | Issued (tCO₂e) | Retired (tCO₂e) |
|---|---|---|
| 2024 | 15,595 | none |
| 2023 | 74,610 | 19,149 |
| 2022 | 61,642 | 61,642 |
| 2021 | 72,520 | 52,520 |
| 2020 | 75,710 | 74,860 |
| 2019 | 69,702 | 65,456 |
| 2018 | 78,957 | 40,622 |
| 2017 | 78,176 | 32,590 |
| 2016 | 67,825 | 57,915 |
| 2015 | 58,912 | 58,838 |
| 2014 | 44,975 | 44,764 |
Source: Registry records · Data as of 1 June 2026
Credit Passport in detail
ICVCM quality status
Methodology under ICVCM assessment.
- Programme: Gold Standard, CCP-eligible since April 2024.
- AMS-I.C. - Thermal energy production with or without electricity - 1.0-22.0: under assessment
The CCP label is applied to credits by the registry, issuance by issuance. An approved methodology means credits from this project can be eligible; it does not mean every credit carries the label.
Source: ICVCM assessment decisions · Decisions read 19 September 2026
CORSIA screen
A screen against published ICAO criteria, not an eligibility determination.
First phase, 2024 to 2026
- ProgrammePassesGold Standard is approved by ICAO for 2024 to 2026.
- DatesDoes not passCrediting began before 1 January 2016 (Gold Standard records a crediting period from 1 April 2014).
- Host country authorisationCannot be confirmed from available dataAuthorisation is granted per activity. This screen cannot confirm whether this project holds a Letter of Authorization.
Second phase, 2027 to 2029
- ProgrammePassesGold Standard is approved by ICAO for 2027 to 2029.
- DatesDoes not passCrediting began before 1 January 2016 (Gold Standard records a crediting period from 1 April 2014).
Programme-specific exclusions were not assessed. Host country context is under Article 6 below.
Source: ICAO eligibility decisions and registry records · Criteria verified 25 September 2026
Bulgaria and Article 6
- Bilateral agreements
- 0
- Authority for the Paris Agreement Crediting Mechanism
- Not appointed
- Participation requirements for the Mechanism
- Not published
- Cooperative approaches
- 0
- Article 6.2 activities
- 0
- Crediting Mechanism activities approved by the host
- 0
- Crediting Mechanism activities registered
- 0
This is country-level context. It does not show whether this project is authorised.
Source: UN Article 6 tracking · Data as of 4 September 2026
Recorded buyers
Organisations named in registry retirement records. Many retirements name no beneficiary, so this list is partial.
1.3% of retired tonnes name an organisation as beneficiary.
| Organisation | Tonnes retired | Latest year |
|---|---|---|
| Zukunftswerk | 6,433 | 2026 |
Retired credits from this project? See what a company can still say about them under the EU green claims rules.
Source: Registry records · Data as of 1 June 2026
Declared SDG contributions
Goals the project declared to its registry. CRBN.credit does not measure these outcomes.
Source: Gold Standard registry · Data as of 17 September 2026
Gold Standard's current record
Gold Standard registry · as of 28 October 2026
Status
Gold Standard Certified Project
Project type
Biomass, or Liquid Biofuel - Cogeneration
Scale
Small scale
Structure
Standalone project
Developer
Sofiyska voda AD
Crediting period
1 Apr 2014 to 31 Mar 2028
Expected per year
61,769 tCO₂e, as estimated at registration
Methane Gas Capture and Electricity Production at Kubratovo Wastewater Treatment Plant Sofia Bulgaria is registered with Gold Standard under the ams-i-c protocol, located in Bulgaria. As of 1 June 2026, registry records show 698,624 tonnes issued and 508,356 tonnes retired. This reflects registry-reported figures, not an independent quality assessment.
Related
Similar projects
- Svilosa Biomass Project 531,363 t issued
Same methodology and country, largest issuance first.
Questions about this project
How many credits has Methane Gas Capture and Electricity Production at Kubratovo Wastewater Treatment Plant Sofia Bulgaria issued?
698,624 tonnes of credits have been issued and 508,356 retired, according to registry records as of 1 June 2026.
What is the ICVCM status of this project's methodology?
Methodology under ICVCM assessment. The CCP label is applied to credits by the registry, issuance by issuance.
Which organisations have retired credits from Methane Gas Capture and Electricity Production at Kubratovo Wastewater Treatment Plant Sofia Bulgaria?
Registry records name 1 organisation: Zukunftswerk. Many retirements name no beneficiary.
Registry data as of June 1, 2026