Philip Sargent

Cambridge UK: materials, software, energy; and beer. Was engineer at DECC (then BEIS) nearly 4.5 years.
@[email protected]

[Philip Sargent @philipsargent]

No. There's just not enough bioresource. Every single sector reckons they can decarbonise if they (that sector alone) can use all of it.

[Policy@Manchester @UoMPolicy]

Are Biofuels the Answer to Kick-Start Decarbonisation in the Shipping Sector? Read our latest blog by @Andrew_welfle of @TyndallManc and @SupergenBioHub to learn more:
https://t.co/LJXSp2nm0A
#bioenergy #decarbonisation #biofuels

[Cambridge Beer Fest @cambeerfest]

Post

3,000 visitors turned out yesterday for the opening evening of the 2025 Cambridge Beer Festival. First cask to sell out was the beer Mangotron from Elusive brewery. First box of cider to sell out was Biddenden's Strong Kentish Cider. We have more of both though! #cbf2025

[Philip Sargent @philipsargent]

@draccoops @thatsamoray @L__Bow Additional tariff and any additional regulation does not come for free: ministerial and parliamentary time is always limited. So what other regulation should be dropped or simplified to allow this one to be improved ?

[ECIU @ECIU_UK]

The final UK GHG emissions statistics for 1990 to 2023 reveal agriculture accounts for higher percentage of UK emissions than electricity supply.  @tommlancaster, @ECIU_UK said:

"Farming is the sector perhaps most exposed to the risks of climate change."
https://t.co/D0hKux25Rq

[Philip Sargent @philipsargent]

A new linepack flexibility metric: particularly for comparing hydrogen with natural gas in the same pipe. https://t.co/jlkQia0qZK... #hydrogen #modeling

[Kleinman Energy @KleinmanEnergy]

BLOG: Industrial waste could be a scalable solution for carbon storage, with billions of tons of CO₂ storage potential locked within byproducts like mining waste and steel slag. https://t.co/iidscx9jqj

[Philip Sargent @philipsargent]

@JonathanWaxman1 @bariweiss Hmm. The time constant of the decay curve is 12 years, but that is not the same as the half-life, which in global warming terms is about 33 years.
https://t.co/fiuXicq4Yj

[BladeoftheSun @BladeoftheS]

I am right in thinking everyone wants to Rejoin the EU aren't I?

Like if you do
RT if you really do

#RejoinEU

[Philip Sargent @philipsargent]

@ProfRayWills "no dependence on the density of the fluid through which the wing is flying... the transport cost (energy-per-distance-per-weight, including the vehicle weight) of a hydrofoil is the same as the transport cost of an aeroplane! Namely, roughly 0.4 kWh per ton-km."

[Philip Sargent @philipsargent]

@ProfRayWills Well... it is unlikely to be more efficient than a displacement boat. The efficiency of hydrofoils is the same as that of aerofoils, i.e. aeroplanes: half the energy goes into keeping them up. Prof. MacKay:
https://t.co/cEFroiEYAm

[Philip Sargent @philipsargent]

@thatsamoray @L__Bow @JonathanWaxman1 @stephwillis808 ..which would have to be a very low capex, high power process, e.g. CaOH to CaO, with a material which is cheap per tonne, and cheap to store.

Pre calcining cement springs to mind.

[Philip Sargent @philipsargent]

@thatsamoray @L__Bow @JonathanWaxman1 @stephwillis808 Flexible demand is a lot cheaper than storage, if you can find the right business.

[Philip Sargent @philipsargent]

@biofuelwatch We need it to compensate for all that CH4

[Philip Sargent @philipsargent]

This is why we need #CCS and #CCUS carbon capture: to fix the methane emissions from agriculture: it's not about fossil fuels.
https://t.co/Na7NYrUtFy

[Gemma Tetlow @gemmatetlow]

This is something we @instituteforgov have been urging HMT to do for several years https://t.co/N4No6W9SPA and https://t.co/lQt0tAWn7q

[Zeke Hausfather @hausfath]

Looks like the y-axis of the graph were mislabeled, here is the correct version (note that all the figures in the paper itself are accurate 😉)

[Philip Sargent @philipsargent]

Fascinating.
But what about the NOx?
https://t.co/1Ak9mKk6lw

[Jesse Peltan @JessePeltan]

People still haven't grasped the implications of batteries this cheap.

Very few of the ideas of what batteries can and can't do hold when you adjust the cost slider by an order of magnitude.

Even if batteries never got any cheaper than this, the entire global energy system will be unrecognizably transformed.

[Jon Stone @joncstone]

I hope the Camden council officer who wrote this took the rest of the day off👏https://t.co/oQKBgMTzSO

[Philip Sargent @philipsargent]

@IanEllerington @pilgrimbeart I'm sorry, I'm just a bit thick-headed today, not quite on the ball. Can't think why..

[Philip Sargent @philipsargent]

How does this actually work ? Water is nearly incompressible at 70 bar?
https://t.co/DtfY63GfMs

[Philip Sargent @philipsargent]

@IanEllerington @pilgrimbeart Good point. So much of it could be high-aggregate foundation.

Tensile forces though.. glass fibre or rebar? Rebar for cost.