What options exist when utility wire is too short to reach the meter?
If the conductors are to be replaced, the utility will likely require the new work to meet their current requirements. For my utility that would mean also replacing the 2&quot; conduit with 3&quot; -- they simply won't install a residential service in a 2&quot; conduit anymore.
There exist compression-style fittings for rigid conduit -- you don't have to have threads. Trimming the conduit to be a few inches shorter doesn't seem like a big deal. Conduit fill requirements mean there will be some space between the conductors and the inner wall of the 2&quot;. If the conductors are straightened well they might just fit into a 1-1/2&quot; pipe (for example). That smaller pipe or other material could be slid down inside the 2&quot; to serve as a shield and protect the conductors while the 2&quot; conduit is trimmed and de-burred.

Other option: do some digging. If the underground service is direct-buried, ie it's not in conduit the whole way, and if it approaches the building at an acute angle (like, say 30 degrees; far from perpendicular) then it might be possible to move the meter sideways along the wall to gain a little more conductor length.
You should probably request a consultation with a field engineer from the utility to learn which options they'll support.