How do you reckon we'll be heating our homes in years to come?

Section62

coffeehound said:

I thought it was made by splitting water?  Daft if it is not independent of FF

Electrolysis of water using electricity from renewable sources is the eventual aim - it is one approach to dealing with the storage problem with AC electrical grids.

But it assumes there will be spare renewable electricity and that all the 'spare' renewable generation isn't instead going into batteries (e.g. in the huge fleet of EV's) or into heat stores.

coffeehound

Section62 said:

coffeehound said:

I thought it was made by splitting water?  Daft if it is not independent of FF

Electrolysis of water using electricity from renewable sources is the eventual aim - it is one approach to dealing with the storage problem with AC electrical grids.

But it assumes there will be spare renewable electricity and that all the 'spare' renewable generation isn't instead going into batteries (e.g. in the huge fleet of EV's) or into heat stores.

Thanks, so the mention of carbon capture by a previous poster does not relate to H2 as an energy source

Section62

coffeehound said:

Section62 said:

coffeehound said:

I thought it was made by splitting water?  Daft if it is not independent of FF

Electrolysis of water using electricity from renewable sources is the eventual aim - it is one approach to dealing with the storage problem with AC electrical grids.

But it assumes there will be spare renewable electricity and that all the 'spare' renewable generation isn't instead going into batteries (e.g. in the huge fleet of EV's) or into heat stores.

Thanks, so the mention of carbon capture by a previous poster does not relate to H2 as an energy source

Only if our total H2 requirement can be met through electrolysis of water using 'spare' renewables.

Otherwise we could be burning gas to generate electricity to produce H2 (madness IMV) or needing to process a hydrocarbon ('fossil fuel') (as per Andy_L's post) in order to extract H2.  The issue then is what happens to the residual carbon-containing product. I.e. whether there is a manufacturing use for it, or it gets captured, or gets released into the atmosphere.  The answer (in part) to that depends on the amount of H2 we need.

Electrolysis of water presents a much neater simple solution... so long as we have the renewable electricity to do it.

This also touches on something I mentioned earlier - that not all coal, gas, and oil is burnt as a fuel, some of it is an essential feedstock for chemical/materials manufacturing processes.  Therefore proposals to 'ban' all future coal/gas/oil production are a bit naive unless somebody first figures out ways of doing everything else we currently do with hydrocarbons which is heavily reliant on the infrastructure put in place primarily to meet our energy needs.

ka7e

According to the Daily Fail, Johnson will unveil his new "Heat and Buildings Strategy" next week - new gas boilers will be banned from 2035 (did someone mention "slippage" on the 2025 deadline?) and new grants introduced for heat pumps.

Section62

ka7e said:

According to the Daily Fail, Johnson will unveil his new "Heat and Buildings Strategy" next week - new gas boilers will be banned from 2035 (did someone mention "slippage" on the 2025 deadline?) and new grants introduced for heat pumps.

AFAIK the 2025 date relates to a ban on gas boilers in new-build property.  The 2035 date is proposed as when replacement gas boilers will also be banned.

The longer-term requirement isn't just to stop new gas installations, but also to phase out the existing ones.

Andy_L

ka7e said:

According to the Daily Fail, Johnson will unveil his new "Heat and Buildings Strategy" next week - new gas boilers will be banned from 2035 (did someone mention "slippage" on the 2025 deadline?) and new grants introduced for heat pumps.

Another "oven-ready" deal then?

warwick2001

Andy_L said:

ka7e said:

According to the Daily Fail, Johnson will unveil his new "Heat and Buildings Strategy" next week - new gas boilers will be banned from 2035 (did someone mention "slippage" on the 2025 deadline?) and new grants introduced for heat pumps.

Another "oven-ready" deal then?

Not a gas-oven one tho

plumb1_2

I’ll bet anyone £10k we will still be replacing gas boilers in2040

Section62

plumb1_2 said:

I’ll bet anyone £10k we will still be replacing gas boilers in2040

You will. Because boilers fitted in 2035 will (hopefully) have more than a 5-year life.  What you replace those gas boilers with is something nobody can predict at the moment because the scale of the changes needed to get there is massive.

But, based on current trends, I'll see you in 2036 to collect my £10k.

Another_Level

Heating and hot water will be electric as soon as cheap produced electric can be better captured in batteries and used to balance local low green generation. 
Iifc there is a development in progress on the isle of grain, battery balancing.  Also there is a new brit/netherlands interconnector being laid now into grain.
European leccy connectors are in use, now typing this masterpiece powered by the belgium interconnector, heating my lidl chicken fillets in a turkish made gas oven ummy:) locally we get our gas here via lng tankers from qatar.

Local edf nuclear power station here has ceased production 3 years ago, cheaper to buy it in. Less jobs for uk workers 

Many people have already been in commercial properties where there is a central ceiling mounted combined air con & heating unit. They work well and as we will have to be insulated to the gills  with tiny unopenable windows the air con part will be nice.
Hot water via cheap electric with solar, heat pumps its all possible. 

Umm lidl chicken fillets, and yes i voted leave