Hey a GIS related post!
I am in charge of GIS at an electic cooperative. We use AutoCAD Map 3 R14 with Gentry Systems GenMap software. We had to do heavy customization to get it to work, but I works great now.
We have approx. 90,000 utility poles on our system. We went to each pole with a GPS backpack and recorded a position and recorded all assembly units (transformers, guys, etc...) on each pole. We also went to each of our 35,000 meter structures (houses) and recorded a position of them too. We know have a GPS accurate map of our entire electrical system of about 5,000 miles of primary voltage.
We handle new construction on our system and staking with Gentry Systems GenStake software. We do approximately 2,500 work orders and additions to our system by construction a year. So it is always growing.
When we started this project (circa 1994) AutoCAD was the only way we saw to go. But now since we have so much data, we are looking at alternative GIS software.
Where ArcView has AutoCAD beat in my opinion is in speed. ArcView is database driven where AutoCAD required an external database. On a Pentium 4 1.8 gHz machine with 1 gig of RAM it takes approximately 3 hours to query and render a Map of our entire system.
On that same note ArcView is seemless mapping, where in AutoCAD we had to break our system up in to 435 different .dwg files.
