Showing posts with label renewables obligation. Show all posts
Showing posts with label renewables obligation. Show all posts

Thursday, 21 August 2014

RHI - biomass sustainability and Biomass Suppliers List (BSL)

Over the last few weeks we have received several emails from DECC regarding their policy for biomass sustainability that it applies to renewable energy subsidy schemes including the Renewable Heat Incentive (RHI) and Renewables Obligation (RO).

Given the volume of reading required to keep up with all of the recent announcements we have attempted a summary to enable readers to locate some of the important documents.

First up is the Biomass sustainability policy Q&A that was released following the consultation workshops that took place in London.  This is well worth a read as it neatly summarises some key questions as well as confirming the following:
  • Introduction of the greenhouse gas and land criteria in the RHI/RO biomass sustainability policy will now be introduced from Spring 2015.
  • Non-domestic RHI participants will have two methods of demonstrating compliance with the forthcoming sustainability criteria:
These 'criteria' are:

  • GHG criteria: Biomass fuel used by RHI participants must meet a lifecycle greenhouse gas (GHG) emissions target of 34.8g CO2 equivalent per MJ of heat, or 60% GHG savings against the EU fossil fuel average.
  • Land Criteria: For woodfuel the criteria are outlined in the UK Timber Standard for Heat and Electricity.
Woodfuel meets the Timber Standard for Heat & Electricity if it "...originates from an independently verifiable legal and sustainable source and appropriate documentation is provided to prove it."

Currently this documentation is obtained via one of two routes:
  • Category A: Evidence that the woodfuel originates from a legal and sustainable source can be provided through the use of independent certification of the wood by a recognised forest certification scheme (e.g. FSC, PEFC).
  • Category B: Evidence that the woodfuel originates from a legal and sustainable source can also be provided in the form of alternative/bespoke documentary evidence that provides sufficient assurance that the source of the wood is legal and sustainable (e.g. via a supplier registered on the BSL or via self-reporting - for more details click here).

Summary of post consultation decisions

Some changes have been introduce following the consultation and feedback received during workshops.  These changes are as follows:

  • New requirements to report on the proportion of ‘hardwood’ and ‘softwood’. There will be an additional requirement to report on whether any of the wood used was likely to have come from threatened or protected species.
  • Arboricultural residues will be deemed sustainable under the Timber Standard for the RO and RHI.
  • Not to exempt wood from diseased trees from the Timber Standard.   
  • To “deem sustainable” under the Timber Standard, trees removed from non-forest land for ecological reasons.
  • Not to exempt wind blow from the Timber Standard at this stage but to keep the evidence under review.
  • Not to exempt non-waste residues from sawmills from the Timber Standard.
  • To add ‘highly biodiverse grasslands’ to the list of protected land types in the land criteria for non-wood solid and gaseous biomass.
Copies of the original consultation document and Government Response can be can be viewed on the DECC website.

Further reading:


BSL guidance and Q & A 

UK Timber Standard for Heat and Electricity

DECC February 2013 Government Response document, announcing RHI sustainability criteria 

DECC December 2013 Government Response document, providing an update on RHI sustainability criteria

Ofgem Renewables Obligation sustainability guidance

EU 2010 Report on biomass sustainability

Monday, 24 September 2012

RHI Consultations - Part 2


In addition to the domestic RHI consultation two additional consultations were launched last week by DECC which  are of relevance to the biomass heating sector.

The first consultation looks at the expansion of the commercial scheme (or Phase I launched during November 2011) and includes direct air heaters, extension of biogas support and a new specific tariff for biomass CHP (closes on 7th December 2012).

The second consultation focuses on air to water heat pumps and energy from waste (closes on 18 October 2012).

Key proposals of relevance to the biomass sector include:

  • Introduction of a specific tariff for heat from biomass CHP of 4.1p/kWh 
  • Extension of biogas combustion tariffs to installations over 200kW 
  • Inclusion of biomass direct air heaters with a proposed tariff of 2.1p/kWh under 1MW and 1p/kWh over 1MW.  Three options for determining the RHI payment are also presented.  This could be of interest to operators of exhibition/event venues and warehouses/storage where conventional wet or underfloor heating is not feasible.
  • Increased range of waste feedstocks eligible for support (to be consistent with the Renewables Obligation) and continue to pay the biomass tariff for the biomass proportion of the waste. This will extend RHI support to commercial and industrial waste.
  • New requirements for energy efficiency for commercial and district heating schemes.  For district heating compliance with Green Deal 'green tick' measures should be required by only a majority of the premises on the heating network.  For commercial schemes the applicants will be able to choose from a range of alternative methods to demonstrate their energy efficiency (e.g. Energy Performance Certificates, Display Energy Certificates and the Building Research Establishment Environmental Assessment Method).
Sliding scale for district heating energy efficiency

Examples of energy efficiency measures required for RHI compliance

There are also some RHI Calls for evidence. These include large biomass heat (not CHP, over 1MWth), biopropane and landfill gas (closes on 18th October). Interestingly the question around large biomass relates to the previous reduction in support from 2.7p/kWh to 1p/kWh and the impact this has had on projects (according to the document around 50% of the large biomass projects being considered were cancelled when the tariff was reduced).