The Snow Hill lines being electrified Kidderminster - Dorridge / Whitlock's End would only give 2tph of the current 6tph service fully under the wires. The Stratford services go to Stourbridge, the Worcesters to Dorridge/Whitlock's End.
You'd need bi-modes, and there would be that expectation that Stratford, Leamington and Worcester would get electrified not long after - it's infill and not too difficult. As such, I'd imagine the whole thing would have to be done in one go.
But this sort of well-trafficked suburban line is going to be the kind of thing to do. And it's clear that West Midlands are keen on sparks (both Bromsgrove and Chase line next). They certainly want NuCKLe done by the time HS2 opens, what with their plans for Euston-Trent Valley via Coventry, and Birmingham-Cov-Leamington outer suburban service proposals.
You'd need bi-modes, and there would be that expectation that Stratford, Leamington and Worcester would get electrified not long after - it's infill and not too difficult. As such, I'd imagine the whole thing would have to be done in one go.
But this sort of well-trafficked suburban line is going to be the kind of thing to do. And it's clear that West Midlands are keen on sparks (both Bromsgrove and Chase line next). They certainly want NuCKLe done by the time HS2 opens, what with their plans for Euston-Trent Valley via Coventry, and Birmingham-Cov-Leamington outer suburban service proposals.