I think that fleet standardisation should be more focussed on the
DMU side of Northern, than the relatively small numbers of EMU classes... but then I think we really ought to have a Windermere mega-thread, since we seem to end up having exactly the same discussion about the branch on various different threads... Northern really don't need six different classes of DMU (some of which have subclasses) - but with suggestions about taking on 175/185s - swap some classes around elsewhere to simplify things - it's a mess!
I'm not putting too much faith in the suggestion about getting more 331s - it sounds like people jumping on the kind of positive PR quote that *of course* the spokesperson is going to say - they are hardly going to give a press release saying "we have too many trains and the subsidy profile plus Covid downturn means that we ought to be shrinking the fleet", even if there is an element of truth.
I wonder what they battery range of a 331 would be - If it can do up to 70 miles away from the wires then they would make a good fit for Neville Hill based services, the one I’m thinking being Leeds to Sheffield via Wakefield Westgate or even Leeds to Lancaster.
Good question - that's a route they should be okay on - over half the route (Leeds - Moorthorpe) is under the wires, and a round trip from Moorthorpe to Sheffield would be around half the seventy miles distance you've quoted, so wouldn't be pushing them anywhere near the maximum (given that I could see The Powers That Be being reluctant to put battery units on a route that put them dangerously close to being at their maximum distance away from the wires).
There are a few routes where you could amend existing services and extend a little distance beyond the wires - e.g. some Leeds - Skipton services could run to Settle (okay, Ribblehead, given the lack of points, before anyone jumps down my throat) - maybe add one extra unit to the Airedale diagrams so that there's always one north of Skipton, providing a ninety minute service from Leeds further up the valley (based on it being around forty minutes from Skipton to Ribblehead, i.e. one unit could do the round trip in around an hour and a half)
This could be a way of giving Morecambe a regular Manchester service too - a lot of people are stuck in a British Rail mentality whereby demand for Morecambe services is all about Leeds rather than Manchester Because That's How BR Used To Do It - but I think it'd be a simple extension for a handful of services a day.
Shame that the Morpeth - Newcastle services now run through to Carlisle, rather than just Metro Centre, as a battery unit would be great on a Morpeth - Metro Centre route (short section of shunting at Morpeth and also from Gateshead to Metro Centre are unnelectrified, but a 100mph EMU would be much better use of a path on the ECML than a 75mph DMU path). That brings the problems of a micro fleet though.