QGES™ · VERSION 4 · 2023

Quality Greengas to Electricity Standard™

A framework for assessing measurable, scientifically grounded and verifiable CO₂ avoidance from electricity generated from greengas.

Measuring the climate impact of electricity generated from greengas

The Quality Greengas to Electricity Standard™ defines the credit-generation methodology for greenhouse gas emission reduction and avoidance resulting from replacing fossil-based “dirty” electricity with electricity generated from greengas.

Greengas production

Greengas can be produced through the decomposition of organic materials such as biomass, household waste, algae from aquaculture, or other organic feedstocks; the process may be accelerated by chemical catalysts.

Greengas → electricity

Greengas is used in a gas engine, and an inverter/generator converts the available energy into electricity that can be fed into the grid.

CO₂ avoidance

QGES™ quantifies and verifies CO₂ avoidance resulting from replacing electricity generation supplied by fossil sources.

Green electricity from greengas

QGES™ is used to assess projects that generate electricity from greengas. The Standard focuses on measurable GHG avoidance resulting from the replacement of fossil-based electricity generation.

  • Biomass and other organic feedstocks
  • Organic fraction of household waste
  • Algae from aquaculture and other organic feedstocks
  • Greengas production and gas-engine power generation
  • Inverter/generator and electricity grid feed-in
  • CO₂ avoidance from replacing fossil-based electricity

What does QGES™ assess?

The technology and its key processes, the quantity of greengas, energy conversion efficiency, electricity generated and fed into the grid, and annual CO₂ savings.

Calculations also consider the pre-project state, input/output material and energy flows, the fossil-based electricity grid, and relevant emission data.

Openness, credibility and future-proof assessment

QGES™ aims to provide a future-proof, practical methodology for all stakeholders participating in the Voluntary Carbon Market.

Openness

Appropriate access to relevant basic data and documentation supports independent cross-checking of the credibility of calculations.

Credibility and transparent documentation

The project owner is responsible for the validity, integrity and accuracy of submitted input data and documentation. Data retrievability is a fundamental operating condition of the VCM.

Continuous improvement

Continuous improvement of QGES™ is driven by quality management, scientific and technological progress, and sustainability objectives.

Toughest sustainability criteria

Comprehensive technology mapping, process, material and energy flows, assessment of the pre-project state, and evaluation of long-term results.

State-of-the-art technology assessment

Assessment of technology, processes, inputs, outputs and calculations, with professional cross-checking of calculations and use of up-to-date variables.

Prevention of double counting

Ownership of the project CO₂ benefit and exclusion of double use must be supported by legally binding declarations; without them, assessment or registration cannot proceed.

From greengas to CO₂ avoidance

The QGES™ process links the greengas → gas engine → inverter/generator → electricity grid chain with production data, efficiency and annual CO₂ savings.

1

Greengas

Determination of the quantity of greengas produced from organic feedstocks.

2

Gas engine

Conversion of greengas into energy and assessment of technological efficiency.

3

Generator and grid

Electricity generation and determination of the amount actually fed into the grid.

4

CO₂ savings

Calculation of annual CO₂ avoidance resulting from the replacement of fossil-based electricity generation.

5

QGEC™ credit

The quantity of Quality Greengas to Electricity Credit™ can be determined from the verified CO₂e result.

QGEC™ from verified CO₂ avoidance

The QGES™ Standard also defines the methodological framework for generating Quality Greengas to Electricity Credits™, or QGEC™.

QGEC™

Under QGES™, one carbon credit represents one tonne of CO₂e greenhouse gas emissions in the Voluntary Carbon Market. QGEC™ is based on verified CO₂e avoidance resulting from the replacement of fossil-based electricity generation by electricity generated from greengas.

The Standard follows an ex-post financing logic: payment for registered credits is not intended to support uncertain future activities, but is linked to climate benefits that have already been achieved and verified.

Numeric Counting Model

The QGES™ Numeric Counting Model for credit generation is based on the Greengas to Electricity models and the process described in the Standard. The calculation framework defines the relationship between green energy generated from greengas, efficiency, electricity fed into the grid and CO₂ avoidance.

The calculation tables and methodological details designed by iCC for the individual models are the intellectual property of iCC and are not publicly disclosed under the Standard.

Data quality and conservative approach

QGES™ aims to achieve future-proof results, avoid uncertain or insufficient solutions, and apply a conservative approach to calculating CO₂e avoidance.

  • Greengas quantity
  • Electricity generation
  • Efficiency
  • Grid feed-in
  • Annual CO₂ savings

Access to the complete QGES™ Standard documentation

This website presents the purpose, application, principles and general calculation logic of the Quality Greengas to Electricity Standard™. The complete Standard contains detailed technological, calculation, documentation and legal requirements.

QGES™ Version 4

The Standard, last updated on 16 August 2023, describes the assessment of CO₂ avoidance from projects generating electricity from greengas, the technological process, the calculation model and credit generation.

  • Greengas production and electricity generation
  • Technology and process mapping
  • Input/output material and energy flows
  • Conservative calculation of CO₂e avoidance
  • Peer review and calculation cross-checking
  • Prevention of double registration and double use
  • QGES™ Numeric Counting Model
  • QGEC™ credit generation
  • Project data and registry documentation
Request full documentation

Connect to the QGES™ system

Request access to the complete Standard documentation, or submit the basic information of your electricity-from-greengas project for preliminary assessment.

Full Standard access

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Project registration

Submit the basic information of your electricity-from-greengas project for a preliminary QGES™ assessment.