I do agree with the noble Lord. He is right that proving the safety case through rigorous testing and trials is critical to the success of any new technology or fuel source. That is why the 10-point plan sets out plans for a series of incremental trials, potentially leading up to a hydrogen village by the end of this decade. Alongside this, it also sets out plans to implement the future home standard in the shortest possible time, so that new buildings can have high levels of energy efficiency and low-carbon heating, including the aim for 600,000 heat pump installations per year by 2028. The truth is that we need all these technologies to be developed at scale.