Thanks @hem 

That looks like a SMETS1 meter with an Elster (Honeywell) Communications Hub operating at 900/1800MHz for connection to the National Smart Meter Network operated in the southern and central territories by Telefonica.

I like the inclusion of a separate 100A 2-pole isolation switch.
That allows an electrician to work safely within your consumer unit, without needing to break the seal on the Service Fuse.

I dislike what looks like a whole-house residual current detector (RCD) in that location.
Any earth-leakage fault within the house electrics will cause that trip to open, thereby plunging everyone into darkness. Ugh!
You then need to correct the fault, before going outside with a meter-box key to reset the trip. That's unfriendly.

Since your house is supplied from a PME substation, your EV charger must have its own earth stake rather than being connected back to the house earth-block.
The house earth is being provided by a link to the Neutral incomer to the property.

Cars have metal bodies.

In the event of a broken neutral wire between your house and the substation transformer, it's essential that the metalwork can't 'float' upwards.
That would present a shock hazard to anyone touching the car.

There are 550,000 substations in Britain.
Each year about 300 of these have a neutral fault which requires the DNO to repair it.

So you need to check with PodPoint whether they'd accept a 2-core SWA cable.
The armour would still be connected to earth at the house end to protect against cable damage.
But it wouldn't connect to anything at the garage end.

@transparent 

Thank you once again.

Message from podpoint

"For areas where the cable crosses a path or a garden, we require the cable to be laid underground in ducting..

When organising the works, please ensure they follow the full specifications below:

• The trench needs to be a minimum depth of 450mm except for driveways where depth should be at least 600mm.
• There needs to be continuous twin walled flexi-duct with a minimum diameter of 50mm for the entirety of the underground run.
• A 6mm - 9mm nylon rope (draw cable) for cable pulling is expected to be installed in all ductwork for current cabling AND future use/capacity.
• Yellow warning tape to be placed in trench before being filled in.

@transparent   If it's a Podpoint Solo EV charger, a quick look at the installation guide suggests it has has a form of PEN fault detection and can be connected to a TN-C-S supply without need of a separate earth electrode.

@hem  Again, if it's a Podpoint Solo EV charger, there doesn't appear to be a wired network option so you will need good WiFi coverage at the front of the garage.  A low voltage two-wire connection back to a current transformer on the incoming grid live supply will also be required, so a cable with integral cat5 core will be useful.  At that distance, I would choose the 6sq mm version. Your electrician will need to register the installation with your DNO and building control.

Posted by: @hem

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For areas where the cable crosses a path or a garden,

It's not 'crossing' a path or garden except for one point near the back door.

The intended cable-run is mainly along a fence...
which we don't yet know whether you own.

We only have a plan view to go on, and a photo of the pathway near your back door might help.

I can't see why a cable can't cross between the house and the fence at high level (say 2.5m above the path).
The fence may require a post to be extended upwards. But that could be done using a piece of aluminium angle.
I'd be paying more attention to how the SWA cable gets attached as it crosses that back path.

A thin stainless-steel wire rope could provide the required support.
Go to Amazon and type in Steel Wire Kit; there's loads of possibilities.

@transparent 

It is Podpoint Solo3 indeed. 

Thanks once again. much appreciate your help.