We looked into this quite extensively recently. There is no doubt that
a reasonable UPS is the best way to go vis-a-vis generator but only if
most of the work stations are laptops with their own batteries (and
larger keyboards attached). We have set this up in Middleton
(admittedly not a huge practice) and it has already survived a quite
prolonged power outage without any real problems. I'd have to check
the costs, but the way we've done it was certainly cheaper than a
generator. Greg M
Horst Herb wrote:
On Wednesday 19 April 2006 22:53, you wrote:
Aren't petrol generators cheaper than a battery as big as a fridge??
No. Because you would need one that
1.) is acceptable noisewise and emissionwise by the neighbourhood
2.) kicks in automatically
on top of a UPS that at least can bridge a few minutes and conditions your
power
Yes, my UPS is as big as a small bar fridge and weighs 400 kg, but suitable
generator would be at least as big and much dearer
How many kWh does one get for $4k?
about 15 I guess
Laptops are rather useful for riding out blackouts or power cord accidents.
Laptops are not made for continuous operation. They ususally don't last long
under the thermal stress, nor do their keyboards usually take well the
8-hours-a-day punding on 5 days a week every week.
Horst
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