pool pump and sunnyboy/sw4048 hybrid [RE-wrenches]

[keith]

Hello Wrenches
 
Two questions:
 
1. I am looking to create an energy star home.  I have complied with
every energy consuming appliance we have from the refrigerator, washer,
dryer, solar hot water.  The last item is the pool pump.  It is a 1 hp
filter/circulation pump and it came with the house when we bought it
last month.  I have spoken to a few pool dudes and they seem to all push
the 8 hour a day running concept.  That’s 8 kW a day I am not
enthusiastic about.  I recently whittled the time down to 7 hours to see
if the algae liked this new additional hour for growth and haven’t seen
any appreciable difference. I get the feeling that if you’re a pool guy,
you have a route and want to get in and out as quickly as possible:
i.e.: run the pump longer. Anyway, does anyone have any guidelines for
hours of operation in relationship to pump size, pool size, and distance
to the pool from the pump etc. and can anyone recommend perhaps a super
efficient ¾ or ½ hp pump?
 
2. Since our move, I took my 4048, SP75s, C-40, DC175, Concorde AGM’s
with me.  I will have a stand alone system and a newly installed (this
weekend) 12- bp160’s on a 
SB2500.  I was considering using the outback combiner box and rewire the
panels with three (3) homeruns into a 48 volt configuration.  I was
going to purchase a 120/240 transformer and have an AB switch.  This
way, I can proverbially have the best of both worlds.  One system is
grid tied for max efficiency, the other for keeping the refrigeration
cold.  In the event of an extended power outage, divert the sunny boy
string to the input of the 4048 and have a slick backup system and keep
those batteries topped off.  I understand everyone must be thinking why
bother, but my 4048 is only 3.5 years old.
 
Any suggestions or comments would sincerely be appreciated.
 
Keith Cronin
Island Energy Solutions
318 A Kuulei Road
Kailua, Hawaii 96734
808-262-3268 Tel
808-263-0338 Fax
 
 

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