How accurate is the equipment used for measuring quantity (as a percentage or using units e.g. ± X% or X kg)? Also outline steps taken to ensure accuracy is maintained, such as calibration undertaken on a periodic basis (including relevant standards this would be conducted to). [your response to this question should reflect the size and complexity of your installation] What evidence will you retain to substantiate the figure for each consignment used per quarter? Section D: Determining gas yield How will you quantify the proportion of biomethane produced from each consignment of feedstock? If you are planning to use Ofgem’s Biogas and Biomethane Apportioning Tool please ensure you include the following information: whether or not you are using the data provided in the tool; how you have derived the data if you are not using that in the tool. [Please note that sites using only one consignment each quarter do not need to answer this question.] You are required to calculate greenhouse gas emissions based on the net calorific value (NCV) of the biomethane injected (also known as lower heating value (LHV)). I intend to measure the NCV. I intend to convert from gross calorific value (GCV) (also known as higher heating value (HHV)). Please provide further details of how you intend to convert from GCV to NCV or how you will measure this value.
How accurate is the equipment used for measuring quantity (as a percentage or using units e.g. ± X% or X kg)? Also outline steps taken to ensure accuracy is maintained, such as calibration undertaken on a periodic basis (including relevant standards this would be conducted to). [your response to this question should reflect the size and complexity of your installation] What evidence will you retain to substantiate the figure for each consignment used per quarter? Section D: Determining gas yield How will you quantify the proportion of biomethane produced from each consignment of feedstock? If you are planning to use Ofgem’s Biogas and Biomethane Apportioning Tool please ensure you include the following information: whether or not you are using the data provided in the tool; how you have derived the data if you are not using that in the tool. [Please note that sites using only one consignment each quarter do not need to answer this question.] You are required to calculate greenhouse gas emissions based on the net calorific value (NCV) of the biomethane injected (also known as lower heating value (LHV)). I intend to measure the NCV. I intend to convert from gross calorific value (GCV) (also known as higher heating value (HHV)). Please provide further details of how you intend to convert from GCV to NCV or how you will measure this value.
biomethane_fuel_measurement_and_sampling_questionnaire_v2.1_publish.docx