Long-duration Energy Storage (Science and Technology Committee Report)

Lord Whitty Excerpts

Thursday 9th January 2025 Lords Chamber

[Lord Whitty (Lab)]

My Lords, I join others in thanking the noble Baroness, Lady Brown, both for the report and for the clarity with which she has introduced this debate. I also thank the committee and its staff. Every time the last Government introduced an energy Bill or an energy Statement, I asked what they were doing about storage. I did not get any clearer reply than the committee evidently got from Ministers then. I do not think things have improved subsequently, but I welcome the Minister, the noble Baroness, Lady Gustafsson, and I hope that in her reply she will indicate which departments are responsible for which in this area—I am glad to see the noble Lord, Lord Hunt, here. I mention this partly because I listened to the introduction from the noble Lord, Lord Borwick. I worked for the father of the noble Viscount, Lord Stansgate, as a Minister even earlier, when we had separate ministries of technology and of fuel and power, and they failed to get on. Subsequent Prime Ministers have altered the demarcation several times since, and I would like to know what the new Government’s structure is, not only between those two departments but right across Whitehall.

It is important that we focus on storage. I have asked the previous Government and I ask this Government whether they agree that we will not approach the recommended path to net zero unless we have a very significant storage contribution reasonably quickly and, hopefully, as cost effectively as we can manage. I hope that this Government will rapidly move to a clear strategy for storage—of all technologies.

In the meantime, I want to concentrate on one dimension of this, which is the availability of hydrogen for both production purposes and storage, and the way in which we produce hydrogen at scale which does not itself create carbon emissions and slow down the approach to net zero. The last Government issued a number of White Papers on hydrogen; this Government have issued one, but it does not answer that question. At present, nowhere in the world to my knowledge is very substantial, at-scale production of green hydrogen being made available to industry. We have grey and blue hydrogen and we have moves to make hydrogen production somewhat cleaner and more cost efficient, but we do not have green hydrogen at scale. Yet most of the sectors which we are intending to transform by 2030, or, in some cases, by 2035, require some input of hydrogen.

The last Government and this Government have implied, but never stated definitively, that they have abandoned any idea that hydrogen will be the main replacement for natural gas in our home and office heating systems, except in very exceptional circumstances, but there are still places where the assumption is that hydrogen will be used: in heavy industry, possibly in heavy transport and possibly even in marine and aviation. There will be lots of demand for hydrogen. Hydrogen for storage will be but one of them. Yet we are not clear how we produce that hydrogen in a way which is not itself a contributing factor to emissions of carbon if we use methane and other means.

I hope that this Government will commit themselves to making clear within the next 12 months or so where the hydrogen is going to come from, how rapidly we are able to deploy it and what technologies will be used in addition to hydrogen to provide the necessary electricity storage, which the committee has drawn attention to. Unless we answer that question, we will fail not only on long-duration electricity storage but on providing decarbonisation of some of our most significant industrial and service sectors. I hope therefore that, in whatever government department it is, attention is drawn over the next few months to hydrogen production, because even with major policies as advocated by the noble Baroness, Lady Bennett, on demand reduction and energy efficiency, we will not meet that transition pathway without it.