What was also interesting is that it correlated with altitude of the meter which indicates a preference for wealthier neighborhoods.

The problem is that the data Hash collected is incomplete and hard to draw conclusions from:

* It’s a war driving effort of a small strip of Dallas * The data becomes impossible to capture as normal interruptions happen and reset the uptime counter.

It’s also unclear to me if these uptime counters are affected by having a generator or other backup power supply. One of the examples he noted was a Chase Bank that hadn’t experienced an interruption at all.