QUOTE (TWControls @ Jun 28 2009, 04:32 PM)

Can you imagine the cost savings just in shipping from not having to ship the various vendor supplied components in for final assembly?
Maybe not as great as you think. This might be a revolutionary concept for the automotive companies but it is hardly without precedent, and not always a winner. It looks very cool and has some major advantages but the advantages are not always so clear cut, and there are distinct downsides.
By way of example, consider making sodium silicate solutions, aka "water glass", for the paper industry. The two major players are Occidental Chemical and Philadelphia Quartz (PQ). They have distinct and total opposite approaches to the manufacturing process. Oxychem places plants right next door to a paper mill and literally pipes the stuff directly into the customer. They run small footprint operations and spend a lot of money simply trucking glass-quality sand into their plants. The game for them becomes one of trying to keep their distribution costs low and trying to keep up on the maintenance and personnel costs of running lots of very small plants.
In comparison, PQ runs a small number of very large glass melting furnaces around the country. They have a comparitively small distribution problem on the front end and can take advantage of the economies of scale in terms of higher quality product and lower production and personnel costs by running a few large sites. Outages are also less of a factor. Comparatively speaking, distribution on the back end is different (tankers instead of dump trucks), and they can take advantage of rail shipping.
When you look at it from this perspective, there's no clear winner here. In reality between the two competitors, as far as I can tell (I'm not an insider in the chemical glass business), I can't distinguish one as vastly superior to the other.
The advantages of a separate larger facility are:
1. Economies of scale.
2. Potentially lower costs to import raws.
3. Larger customer base per plant. If the customer has production/sales troubles, you can spread the hit over multiple customers.
5. Lots of other logistics issues. For instance, making maintenance crews "mobile" and/or retaining/training high level skilled maintenance crews is much more problematic. Similar issues with technical (engineering) and QC arise. Management is always a headache because so much has to be done "remotely" or via road time. This all goes away with the "everyone under one roof" concept.
The disadvantages are:
1. Need for inventories, warehousing, distribution, shipping to customer.
2. Longer lines of communication/logistics.
3. Packaging costs.
4. The finished product may be larger in size or increases in mass relative to the raws such that it costs more to ship than to make on site.