Southside Electric Cooperative says SOA "paid for itself in the first year."
This is according to "Electricity provider cites SOA for efficiency gains." (Computerworld) The project used IBM WebSphere products and Qualcomm's OmniTRACS.
IBM has a press release: "IBM Turns On Southside Electric Cooperative to Software Recycling; Coop Delivers $1.2 Million Capital Credits Refund to Member-Owners." (What a clever title; just screams "SOA," doesn't it?!)
Cryptic press release titles aside, SOA really does work and really produces business value. See SOA Success at Delaware Electric, SOA Success with Rational and WebSphere, and Software's SOA buzz yielding dividends.