Grid Lock
Duncan Smith

Grid Lock

I took this photo a few months ago.  It quite nicely illustrates the relationship between the production and supply of electricity to our homes in Scotland. There's been a lot of discussion on the timescales for achieving Net Zero this week.  


However, one thing is sure.  As a nation, we're going to have to stop burning stuff to heat our homes.  Instead, we have to electrify heating.  Whether that's through direct electric heating heat networks or heat pumps we need to have done this by 2045 in Scotland - that's just two decades from now.


My question is, do we have the capacity within our distribution network to move around two million homes from gas to electricity between now and 2045.


There's a lot of generating capacity in the pipeline from reading Scottish Government updates.  But how we take that power from the wind turbine to the front door or an energy centre is a separate matter.


While opinions are welcome, I'm interested in the facts from my old colleagues in ScottishPower and Scottish and Southern Electricity Networks on the limitations, how we overcome them. And is enough is being done from a policy perspective to enable the Net Zero future we all need.

 

The electricity grid in Scotland works based on the generation, transmission, and distribution of electricity.  And whilst we've built lots of new electricity generation, mainly through wind farms, have we put the capacity in place that will allow heat pumps and heat networks to be connected to that generation up and down the country.


And also, here's a question.  How will we maintain the gas supply to existing neighbourhoods whilst this transition is ongoing? 

 

However, one question no one is asking is about the transition away from gas as opposed to the one towards electricity.

 

Given that all of the policies I read look to organically grow heat pump installations through individual households making individual decisions - accessing soft loans and grants over an extended time frame to install heat pumps. 

 

Within urban areas, at which point does the local gas infrastructure become too expensive to run and maintain.  When 25% or 50% of their customers have switched from gas to electricity.  And what then for the remainder of customers who remain on that gas network?

 

I'm being slightly disingenuous about all of this.  I've got a hunch, but I don't know for sure.  But what I am going to try to do is find out by speaking with colleagues across the industry with a view to publishing a series of articles and interviews on LinkedIn between now and the end of the year.

 

Articles that are a bit of a deeper dive, less about the soundbite and more about the substance, which I hope people find informative and helpful.  If you're interested, then let me know.


#electricitygrid #gasnetwork #gridcapacity #netzero #heatpumps #heatnetworks

 

Bruce Boucher

MD at Bruce Boucher Consulting & Design

4mo

Duncan I don't subscribe as yet to Net Zero, I do describe to practical solutions though. My point simply is Governments need to lead this in a pragmatic way. This can't or never will happen by design, but by time only. I doubt many on LinkedIn will be around to see the final outcome of Electricity being the only final energy source for mass integration into all the areas we live work and play in. Setting guessed or badly conceived dates, mainly driven by political popularity is silly IMO. Our ability to communicate as well as we can in the 21st century, only confirms we communicate more but deliver in reality less. The technology today is available, however the long term workforce willing to make it happen doesn't exist. Add to this the worlds woes presently affecting mankind globally, I would say 40-50 years ahead perhaps the dream may come true, but don't hold your breath. Anyway must get on with another Heat Pump solution with colleagues.

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Dr Roddy Yarr

Director of Sustainability at the University of Glasgow, Clyde Mission Net Zero lead, Convenor Climate Ready Clyde, Sustainable Glasgow Hub member. External sustainability advisor to several boards.

4mo

Decentralisation of power generation devices for strategic assets. Direct wire for these assets where possible. For example dockside wind and PV with thermal and BESS at Greenock. Shore power for the cruise terminal for the publicly owned assets and the wshp that must be being planned. Identify a place based pipeline of opportunities with Clyde Mission funding. Could do the same at Bowling for the Golden Jubilee, Dalimir flats and the Queens Quay heat network.

Matthew Clubb

Future-proofing buildings in North East Scotland - Architectural Designer, Passivhaus Designer, Retrofit Coordinator, former Mechanical Engineer and climate nerd, based in Aberdeenshire. MEng, MArch

4mo

It's a great question which seems to have been answered in the comments! What's the healthy balance between spending money on cables and substations, and spending money on improving homes to use less energy? We need funded feasibility studies, with construction professionals collaborating with energy companies, to start modelling neighbourhoods around the country.

Good question. The Grid is mainly constrained and therefore getting renewables on site to boost the capacity to get rid of gas is going to be tricky. Fortunately, there are ways of solving this through Smart Grids.

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Martin Hope

Specification Manager North Intatec

4mo

Duncan, the obvious solution to the Electric grid issue is heat networks, they can use waste heat from industry, with the upcoming changes under the HNTAS Heat Network Technical Assurance Scheme, only heat interface units that have passed the BESA 2023 test will be approved for installation on heat networks, this will ensure they become more efficient reducing carbon and fuel poverty. We have a small CPD on the upcoming changes if you or anyone else is interested let me know.

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