Renewable Energy

Jim Shannon Excerpts

Wednesday 29th February 2012 Westminster Hall

[Caroline Nokes]

Indeed; my hon. Friend is correct.

I should like to explore a number of issues facing the development of the renewable energy from waste industry outside the large industrial-scale plants that I have mentioned. I want to show how the current incentives are working and how we could adjust them to accelerate awareness and the development of the industry, particularly harnessing the potential for small-scale production, as well as production on an industrial scale.

I have called this debate because incentivising small-scale production could develop valuable employment opportunities, help small businesses and local communities generate their own green energy, grow UK exports and, most importantly, assist the Government to achieve secure, diverse and green energy.

As a country, we continue to produce too much waste and we need to promote better uses for our unwanted produce. Producing more energy from waste is therefore a win-win policy, but it needs to be carefully explained to the general public, as the subject is easy to misunderstand, especially when anaerobic digestion is not well communicated.

Anaerobic digestion is the process whereby biowaste from plant and animal material is converted by micro-organisms in the absence of air into biogas, which can in turn be used to generate green electricity and heat. Anaerobic digestion can help reduce fossil fuel consumption and greenhouse gas emissions—two essential goals in our fight against climate change. Almost any biowaste can be processed in that way, including food waste, energy-producing crops and crop residues, slurry and manure. The process can accept waste from our homes, supermarkets, industry and farms, ensuring that significantly less is sent to landfill.

[Jim Shannon (Strangford) (DUP)]

I thank the hon. Lady for bringing this important matter to Westminster Hall. Does she feel that, to incentivise the use of waste material from farms, for example, the Government need to consider financial incentives, because although every farmer would wish to do that, financial restrictions might prevent them from doing so?

[Caroline Nokes]

Not just financial incentives are needed; deregulation and, in some instances, making the planning process a lot simpler for agricultural enterprises are needed, too.

The National Farmers Union is a vociferous advocate of anaerobic digestion and argues that its use on farms reduces emissions of methane from manures and agricultural residues, improves air quality through the control and reduction of odours, such as ammonia, and leads to benefits to water quality from the improved management of nitrogen and other nutrients present in manures.

Another major advantage of anaerobic digestion as a renewable energy source is that the material left over at the end of the process—an odour-free digestate, rich in nutrients—can be used effectively as fertiliser. This could, and really should, become the standard fertiliser on the market. However, many domestic and business users do not understand the benefits derived from buying recycled products. A new petrochemical-derived fertiliser can cost a farmer between £200 and £400 per tonne, but the by-product from a micro-anaerobic digestion site is more likely to be of a consistent chemical and nutritional specification. Currently, the anaerobic digestion industry is struggling to sell recycled fertiliser, produced to resource action programme standards, at £5 to £6 per tonne. I would be grateful to the Minister if he expanded on how we can best explain the benefits of, and incentivise the consumption of, recycled fertiliser in farming and domestic gardening.

Many sites in the UK are producing biowaste. According to the Department for Environment, Food and Rural Affairs, the UK produces approximately 7 million tonnes of food waste and about 90 million tonnes of animal slurry and manure per year. With 23.6 million households and 41,000 farms, it is clear that the potential for green energy production is enormous.

The UK currently has 214 anaerobic digestion plants installed, of which 146 are sewage treatment sites. In comparison, Germany has approximately 9,000 farm-based sites and China has a simple, rural, domestic-scale approach to anaerobic digestion, which benefits millions of people. It is clear that the UK has far greater potential to make use of this technology. In light of Germany’s achievements in this field, the NFU’s commendable vision for 1,000 on-farm anaerobic digestion plants by 2020 seems quite modest.

There are almost unlimited possibilities for anaerobic digestion on a local scale. In my constituency, the patented technology of an innovative micro-anaerobic digestion technology provider, SEaB Energy, based on Southampton university science park, has produced a system that creates and generates power from waste inside a shipping container. Using that technology, the company has proved, both at the university science park and, locally, at Sparsholt agricultural college, that it is possible to implement micro-anaerobic digestion solutions. A number of other food producers, golf clubs and hotels are also exploring the benefits of using such technology across the UK.

All organisations create waste. SeAB is leading the way, through anaerobic digestion, in reducing our dependence on landfill by converting waste into valuable energy. I should welcome the Minister’s visiting and meeting the people who have developed this world-leading technology, so that he can see green energy in production.

There are several different options for anaerobic digestion, depending on the amount of energy required, and each has its own challenges. A centralised anaerobic digestion facility requires large quantities of biowaste to be collected and driven across the country, inevitably generating a strain on the existing road network and increasing the carbon footprint of the technology. It is also capital intensive, and the site-planning process can be lengthy.

By comparison, decentralised sites are arguably simpler to operate, quicker to build and easier to install and manage. Road haulage is largely eliminated and the waste producer benefits directly from using its own waste to generate its own green energy. I would be grateful to the Minister if he commented on how we can incentivise the many small waste producers, such as farmers, food growers, food packers, hotels, hospitals, schools or prisons—the list is almost endless—so that they can benefit from green energy throughout the country. In short, anaerobic digestion reduces the need for landfill, with the exciting possibility of creating sustainable communities with a consistent waste fuel power source.

The NFU is keen to ensure that smaller, farm-based biogas proposals are not disadvantaged by being labelled waste management. If we are to see the necessary growth in on-farm anaerobic digestion plants, it is important that they are subject to simple permits. I will be pleased to hear the Minister’s comments on that and on what work can be done with the Department for Communities and Local Government to ensure that light-touch regulation is encouraged among local planning authorities.

It is important to note that there is tremendous potential for the upgrading of biogas to biomethane for motor vehicle use as a tradeable low-carbon fuel or for direct injection into the natural gas distribution network. I understand that equipment for biogas upgrading is available from Germany, where such pipeline injection is growing, and in our constant search for fresh sources of car fuel, that is an extremely encouraging possibility.

Other sources of renewable fuel can be found in the waste stream, such as the conversion of used cooking oil into biodiesel, which is entirely sustainable and derived from a waste product. That would involve recycling almost 100 million litres of waste cooking oil each year, while helping the Government to exceed their greenhouse gas emission targets in transport by 8%. However, as highlighted by the recent report on environmental taxes by the Environmental Audit Committee, of which I am a member, the removal this March of the 20p per litre duty differential on such fuel will make it prohibitively expensive and high-blend users will have no choice but to return to fossil fuels. That will have a disastrous impact on the UK biodiesel industry, resulting in the loss of green jobs, as well as discouraging further investment in the development of new technologies in the energy-from-waste sector.

--- Later in debate ---

[Charles Hendry]

My hon. Friend raises an important issue. For the first time, we are now moving towards a clear, cross-Department strategy on waste. That means looking at the hierarchy and at where we reuse and recycle, but also seeing that as part of that process there is residual waste, and getting an energy source from that is better than putting it into landfill and land raise.

[Jim Shannon]

Will the Minister give way?

[Charles Hendry]

I will give way briefly to the hon. Gentleman, but then must get on to the comments of my hon. Friend.

[Jim Shannon]

I recognise the Minister’s passion for the subject. He mentioned a Government strategy: will that include the regions such as Northern Ireland, Scotland and Wales as well, so that it is uniform and UK-wide?

[Charles Hendry]

We seek to work with the devolved Administrations but, clearly, different rules apply in different parts of the United Kingdom, where the different Governments have responsibility for such matters. If we have central control in Westminster over different aspects, we have the influence, but we obviously wish to work with the devolved Administrations to ensure that the strategy is as holistic as possible. The more that we can remove the barriers and have an integrated and holistic approach, the more effectively we can attract investment into the sector.

We have identified eight technologies that we believe will bring us closest to delivering those 2020 targets cost-effectively and sustainably. They are onshore and offshore wind, marine energy, biomass heat and electricity, ground source and air source heat pumps, and renewable transport. Biomass heat and power includes energy from waste technologies, such as anaerobic digestion, waste combustion and the new, advanced technologies of gasification and pyrolysis. We believe that those eight technologies collectively are capable of delivering more than 90% of the renewable energy we need for 2020.

Instead of just having targets, we are determined to show how we meet our objectives. It is easy for Governments to have targets, but then to leave them to a future Government to explain why they were not met. We are determined to put in place a clear road map that shows what barriers exist, and how we intend to overcome them so that we can be more effectively held to account in the process.

Last year, we published the UK renewable energy road map, which shows where we are now on those eight technologies, how deployment may develop up to 2020, and the actions that will need to be taken now to overcome the barriers to deployment. Although our evidence shows that we can meet our target of 15% renewables by 2020, we are clear that we need a rapid increase in deployment. At the end of 2010, renewable energy accounted for 3.3% of UK energy consumption, so there is a significant way to go.

Renewable electricity and heat technologies are generally more expensive than fossil fuel generation, and require subsidy to boost deployment, just as every previous new energy technology has done. Support is available under the renewables obligation, the feed-in tariffs scheme, the renewable heat incentive, and the renewable transport fuel obligation.