Biogas Sustainability Reporting under the RO. Judith Bates Principal Consultant Presentation to REA Landfill Gas Operators Group (26 th July 2017)

Transcription

1 Biogas Sustainability Reporting under the RO Judith Bates Principal Consultant Presentation to REA Landfill Gas Operators Group (26 th July 2017)

2 2 Who needs to report what Capacity >50kW DNC to<1mw TIC Monthly reporting Annual reporting: Profiling data Annual reporting: Audit report Link to ROC issue No Yes No No > 1MW TIC Yes Yes Yes Yes Exempt from reporting on sustainability if use: landfill gas, sewage gas, municipal waste, manures

3 3 Sustainability criteria Land criteria: focus on the land from which the biomass is sourced Greenhouse gas criteria (GHG): life cycle emissions of the biomass must be less than specified criteria Applicability of criteria varies depending on fuel classification Product/co-product Waste Residue

4 4 Reporting requirements for different fuel categories Fuel category Land criteria GHG criteria Waste Exempt Exempt Biomass wholly derived from waste Exempt Exempt Processing residues* Exempt Emissions during collection Residues from agriculture Required and any subsequent processing and transport Residues from Exempt arboriculture* Residues from aquaculture and fisheries Required Products, co-products Required Full life cycle emissions * Different criteria apply for wood processing residues and wood residues from arboriculture but not shown here as assumed not to be relevant for biogas

5 5 Fuel classifications Defining wastes and residues is complex area Based on interpretation of orders, Renewable Energy Directive, EC communications, existing UK and EU las on waste Residues: Agricultural, fisheries, aquaculture residues those generated in harvesting with no further processing Processing residues: a substance that is not the end product that a production directly seeks to produce. It is not a primary aim of the production process and the process has not been deliberately modified to produce it Some guidance is given in Ofgem notes

6 6 Consignments As different fuel categories have different requirements, Ofgem will require you to split feedstocks up into consignments that take account of the sustainability characteristics Feedstock type Country of origin Classification of the fuel Compliance with land criteria Compliance with GHG criteria

7 7 Land criteria Biomass cannot be obtained from land that was previously (Jan 2008) Primary forest Designated for nature protection Highly biodiverse grass land Peat land Continuously forested area (unless it is still is a continuously forested area) Lightly forested area (unless it still is or meets criteria once LIC emissions are calculated) Wetland (unless it still is a wetland) Demonstrate compliance by using voluntary schemes (several benchmarked by Ofgem) Collecting evidence on land use where the biomass was sourced Cropland likely to comply, but will need evidence was not one of these other categories in 2008

8 8 GHG criteria Products: calculate emissions from the lifecycle of the product cultivation harvesting processing transport digestion generation Residues: calculate emissions from collection stage to generation collection processing transport digestion generation Emissions must be less than criteria set in RO

9 9 How to calculate GHG emissions > 1 MW use actual value method < 1MW use default method or actual value method Actual value method: can generate own calculations or use calculator tools which are available: Ofgem B2C2 calculator Ricardo Energy & Environment calculator Use values for own supply chain in these Default method: Default carbon intensities as calculated by the EC

10 10 Ofgem B2C2 emissions calculator Available at

11 11 Ricardo Energy & Environment AD GHG calculator tool Excel based tool Contact for more details and demonstration

12 12 GHG criteria Time period g CO2/MJ electricity Target Ceiling Current to 2020 Pre 2013 station Current to 2020 Post 2013 station to post If a consignment does not meet the target value but is below the ceiling, then the ROCs for this consignment are held until the end of the year At end of year average emissions for all consignments calculated and if this is below the target value then these held ROCs are issued

13 13 Typical GHG values (assuming engine efficiency of 35%) EC default values g CO 2 /MJ biogas g CO 2 /MJ electricity Whole wheat Maize Ofgem B2C2 values Maize Whole crop wheat Silage grass Biogas from crops likely to meet criteria up to 2020 (79 g CO 2 /MJ) but not post 2020 target of 55.6 g CO 2 /MJ

14 14 Summary Will need to manage a number of different feedstocks, and ensure each feedstock is correctly categorised Need to comply with Fuel Measurement and Sampling requirements Deal with feedstock suppliers and ensure the sustainability of the feedstocks down the whole supply chain (consider using mass balance system) Ensure the land criteria are met Calculate GHG emissions and meet GHG criteria Report monthly Audited annually

15 Judith Bates Ricardo Energy & Environment Gemini Building, Fermi Avenue Harwell, Oxon, OX11 0QR