Emissions Performance Standard Regulations 2015

Before the noble Baroness moves on to the next topic—perhaps the Minister can write to me if it is easier—to get to that projection of only 1% of electricity coming from abated coal by 2025, what is the carbon price assumption in that model? Does it start from the current £18, where it is frozen in 2021, and rise from there, or does it go back to its original trajectory, as was published by the Treasury and others?