"We would like to thank Dervilla Mitchell (Director of Arup) and Paul Stein (Chief Technology Officer, Rolls-Royce plc) for leading the briefing sessions and development of this advice."
"We see an important role for hydrogen in helping to lower emissions; fuelling buses and lorries as well as for energy storage and home heating…We are developing a range of products based on hydrogen"
None of this would matter except for the small fact that building heat & (most) road transport are almost universally identified – by @theCCCuk@IEA@MLiebreich etc etc – as among the *lowest value* applications of hydrogen
7/
Here's the @theCCCuk central view from its sixth carbon budget advice, with building heat & surface transport making up a very small share of hydrogen demand in 2050 (cf shipping, industry, power sector etc)
Here's analysis behind @theCCCuk central view on home heat specifically (HT @heatpolicyrich ) in which none of the mix in 2050 is pure hydrogen boilers (only "hybrid" heat pump + boiler)
To conclude, hydrogen is likely to be very important for reaching net-zero – perhaps even vital – but none of the independent experts I've spoken to see heat & road transport – barring long-distance trucking – as priority areas for the fuel
On net-zero, the @OBR_UK chapter is a really detailed and nuanced look at the costs, benefits and risks of (not) acting on climate change, over 69 dense pages
Gas, hydro, wind and solar all significantly outperformed the IEA's reference scenario expectations from 2008, whereas nuclear and coal were lower
Demand overall was lower than expected, too
2/
There are at least two ways to read this
A) yah boo, the IEA got it wrong on renewables (again)
B) the world implemented a lot of new climate policy since 2008, beyond the static view of the 2008 "reference scenario" (pic)