power units.

No question, this is a high profile sale for Plug Power. The fuel cell industry has noticed that the pockets of government are deep (see here for news of multi-million dollar grant awarded by the US Dept of Energy and the European Commission a couple of weeks ago) and so emergency services communications may turn out to be the emerging niche market for backup power from fuel cells.

The advantage of a fuel cell for backup power is that it is 99.9999% reliable whereas a typical diesel generator is 99.98% reliable. This is known as 6 nines reliability. The police contract comes two weeks after the appointment of a new CFO for PlugPower.