My Lords, it is an honour to follow the noble Lord, Lord Howell of Guildford. As a member of Peers for the Planet, I will speak on a less-discussed aspect of renewable energy. Perhaps I should also declare that one of my sons writes on energy matters.
I would first, however, like to endorse greater use of onshore wind turbines, as promulgated in the Bill proposed by the noble Baroness, Lady Hayman, sadly not appreciated by the Government, for reasons which appear to further narrow interests rather than the imperative of a carbon-neutral economy. But I am encouraged by the promise of a Bill to deliver the transition to cheaper, cleaner and more secure energy, as also commented on by the right reverend Prelate the Bishop of St Edmundsbury in his perceptive and lively maiden speech.
Our great asset in the field of renewable energy is the sea. We have sea all round our island, and its power is more predictable and constant than wind or solar outputs. We have available two dynamic forces: the tides and the waves. Tidal energy has often been discussed in your Lordships’ House, but why, since government policy to dispense with fossil fuel was established in the Climate Change Act 2008, have Her Majesty’s Government been so slow in furthering tidal power? Can the Minister account for that? Has pressure by the fossil fuel companies played a part?
Wave energy—my main theme—risks the same dilatory attitude from the Government. The northern coast of the UK is one of the best sites for development, because the westerlies blow in temperate zones so strongly in winter and make the waves more turbulent where the North Sea meets the Atlantic Ocean. The potential of waves was being discussed when I had responsibility for gas safety in the Health and Safety Executive as long ago as the 1980s. Then, technical problems deterred pursuit, but that was before the climate emergency was generally understood, with enough traction to influence policy.
Although the first patent for extracting energy from waves was taken out in France in 1799, and experiments in the use of wave power have been in play since 1890, the first commercial wave power device in the UK was not installed until 2000, on the coast of Islay in Scotland, and connected to the national grid. A marine energy test facility was established in 2003 in Orkney, on the edge of the Atlantic Ocean, to kickstart development of wave and tide energy technology. I understand three developers are using it. Research and development is being carried out in the universities of Edinburgh, Bristol and Lancaster, in the Norwegian University of Science and Technology, in the United States Naval Academy and in MIT.
It has been established that, while solar panels with efficiencies above 10% are considered viable, wave energy converters can have efficiencies of over 50%. The power density of waves is very large indeed. Wave energy can be taken directly into electricity-producing machinery and used to power adjacent generators and power plants.
Ministers have repeatedly said that we need baseload power for when the wind does not blow and the sun does not shine. This is where waves come in. I ask the Minister: what progress have the Government made?
Of course, there are technical and environmental issues to deal with—infrastructure and offshore grid connections. Attention needs to be paid to the possible effects on marine ecology as well as on fishing and navigation. However, huge strides have been made and much has already been learned from projects over the years. In the USA, Australia, Italy, China, Denmark, Portugal, Sweden and Gibraltar, development work is going on, but here in the UK there seems to be only some research and a small amount of installation. Our research funding is comparatively low.
The energy security strategy outlined in the other place on 19 April and later here made no mention whatever of tidal or wave energy. Surely wave energy must be a greater part of the mix of sources for us. What investment have her Majesty’s Government made so far in developing market-ready wave energy devices, and how will they encourage this most promising avenue of renewable energy? Can the Minister assure us that a boost for wave power could form part of the energy security Bill promised in the Queen’s Speech?
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