Carbon Budget 6

Lord Hunt of Kings Heath Excerpts

Tuesday 3rd March 2026 Lords Chamber

[Lord Whitehead (Lab)]

We do not have the announcement of carbon budget 7 until the summer. The noble Baroness might care to think about what the process of looking again at carbon budget 6 was after those legal judgments. Indeed, the Government have taken a much more robust approach to developing the plan, which has allowed us to make a much clearer and more rational assessment of the savings that will enable carbon budgets to be met and to quantify them fully.

We have also quantified a number of real-world trends that are rather important today, and which are shaping our society and economy. That means our assessment reflects how we would expect the world to change as we accelerate towards net zero. None of these things were done when the previous Administration set out carbon budget 6—indeed, they were part of the legal challenge to those budgets. That is the reason why we consider that carbon budget 6 can be met, in addition to which a number of new policies and directions have come forward since this new Government took office.

[Lord Hunt of Kings Heath (Lab)]

My Lords, if we are going to meet our carbon budgets, clearly, the challenge of getting low-carbon electricity generation as quickly as possible is crucial. The latest figures I have for Q2 2025 suggest that nuclear power was about 15.1% of electricity generation. How do you square that with the Greens’ manifesto, which says that they want to get rid of nuclear power in this country?

[Lord Whitehead (Lab)]

The continued presence of nuclear power as a low-carbon power source is, and will be, an integral part of carbon budget 6 being met. It would be very difficult to catch up with those carbon budget 6 figures without nuclear power. It will come and go a little bit, in terms of retirements of nuclear power stations by the mid-2030s and new nuclear power stations coming online, but it will come back to at least that 15% figure. It is very difficult to see how carbon budget 6 might easily be met without that power in place.