I am grateful to the noble Lord. As I said earlier on, I will endeavour to improve; I know that the noble Lord will keep a record on these matters.
The purpose of the draft orders is to implement reforms to the renewable heat incentive, or RHI. The reforms will deliver changes that will strengthen the focus on long-term decarbonisation, offer better value for money for taxpayers, increase protection for consumers and further support supply chain growth in the renewable heat sector. Heat accounts for around half of the UK’s energy use and one-third of total carbon emissions. Increasing the share of heat derived from renewable sources is a critical challenge, both to meet our renewable energy targets and to deliver the Government’s long-term carbon goals. Building a vibrant renewable heat sector is a key objective of my department’s clean growth strategy and the industrial strategy. The RHI is the main programme to deliver those goals over this spending period. Before the RHI started, only 1% of our heat came from renewable energy sources; that figure is now around 7% of total heat.
This type of tariff-based support for renewable heat is the first scheme of its kind in the world. Inevitably, there are lessons to be learned, and these reforms are a response to some of the lessons from the early years. The National Audit Office published a review of the RHI in February this year, which we were pleased to receive. Many of its comments related to issues covered by the draft regulations, which I hope will go some way towards addressing some of the issues raised by the NAO, which were also noted by the Secondary Legislation Scrutiny Committee. The draft orders will deliver a series of important reforms that will help us to deliver a more strategic mix of technologies and improve value for money over the next three years until the scheme closes in March 2021. I will highlight the main ones.
We will increase the tariffs available for biogas and biomethane technologies while introducing new restrictions on the feedstock that those plants use. That will encourage the increased use of food and agricultural waste and will reduce the use of energy crops, making better use of farmland for food production. Alongside changes already made last year, this will rebalance deployment away from biomass in favour of heat pumps, biogas and biomethane, which will all play a much stronger role in the scheme over the long term.
Another important change is that we will bring in tariff guarantees that will allow RHI applicants to secure their place on the scheme in advance of construction. This will support investments in larger plants that
deliver better value for money. We will cap the amount of heat covered to 250 gigawatt hours per year to protect the scheme budget.
In the domestic scheme, take-up to date has been dominated by owners of larger homes. To promote wider uptake, we will introduce the assignment of rights. This will allow third parties to finance renewable technology and to be repaid directly from the RHI. Crucially, that will open up access to the scheme for those without up-front capital to pay for a new heating system.
Following consultation last year, we will limit the eligibility of certain heat uses. These provisions will remove most instances of wood-fuel drying and waste processing or drying. In addition, we will remove the use of heat for drying digestate in anaerobic digestion facilities as an eligible heat use. We consider that these processes are poor value for money and that many would not exist without RHI support. We will also remove support for heating swimming pools on the non-domestic scheme, unless the pool is for commercial or municipal use.
We are also introducing changes to allow more than one heat pump to use a common or shared ground loop. This should facilitate greater deployment of that important technology. The introduction of electricity metering for heat pumps across both schemes will allow participants to better monitor the efficiency of their plant and build confidence in the technology.
Following consultation, another change will be to increase the power efficiency threshold of combined heat and power technology from 10% to 20% to reduce the risk of overcompensation and to encourage plants to run more efficiently. There is also a whole series of mainly administrative changes to tighten cost control, reduce the risk of gaming and improve Ofgem’s delivery of both schemes, including by tightening its enforcement powers.
The Renewable Heat Incentive Scheme Regulations 2018 also consolidate all previous revisions to the original regulations, as recommended by the Joint Committee on Statutory Instruments. The RHI plays a central role in the Government’s programme to decarbonise heating. These regulations are an important step in refining the scheme and I commend them to the Committee. I beg to move.